[Parquet] perf: Create Utf8/BinaryViewArray directly rather than via `ArrayData` #9121

alamb · 2026-01-09T15:18:09Z

Which issue does this PR close?

part of Reduce overhead to create an Array from ArrayData (make_array) #9061
part of - Part of [Parquet] Remove uses of ArrayData in favor of Direct Array construction #9128

Rationale for this change

similarly to [Parquet] perf: Create StructArrays directly rather than via ArrayData (1% improvement) #9120

Creating Arrays via ArrayData / make_array has overhead (at least 2 Vec allocations) compared to simply creating the arrays directly

ViewArrays also have an extra Vec allocation (to hold their buffers)

What changes are included in this PR?

Update the parquet reader to create ViewArrays directly

Are these changes tested?

By CI

Are there any user-facing changes?

…ArrayData

alamb · 2026-01-09T15:18:31Z

parquet/src/arrow/buffer/view_buffer.rs

    pub fn into_array(self, null_buffer: Option<Buffer>, data_type: &ArrowType) -> ArrayRef {
        let len = self.views.len();
-        let views = Buffer::from_vec(self.views);
+        let views = ScalarBuffer::from(self.views);


The new formulation is simpler too, which is a nice side effect

alamb · 2026-01-10T12:11:57Z

run benchmark arrow_reader

alamb · 2026-01-10T12:12:14Z

This appears to show reading StringView getting slower. I will try and reproduce

alamb-ghbot · 2026-01-10T13:20:21Z

🤖 ./gh_compare_arrow.sh gh_compare_arrow.sh Running
Linux aal-dev 6.14.0-1018-gcp #19~24.04.1-Ubuntu SMP Wed Sep 24 23:23:09 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Comparing alamb/less_parquet_view_allocations (2ed62c2) to 96637fc diff
BENCH_NAME=arrow_reader
BENCH_COMMAND=cargo bench --features=arrow,async,test_common,experimental --bench arrow_reader
BENCH_FILTER=
BENCH_BRANCH_NAME=alamb_less_parquet_view_allocations
Results will be posted here when complete

scovich

LGTM!

alamb · 2026-01-13T12:19:30Z

🤔 looks like this maybe made things slower -- will investigate

group                                                                                                      alamb_less_parquet_view_allocations    main
-----                                                                                                      -----------------------------------    ----

arrow_array_reader/BinaryViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    247.2±3.07µs        ? ?/sec    1.05    259.0±3.79µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs                                1.08    248.4±3.81µs        ? ?/sec    1.00    229.5±2.43µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, no NULLs                                  1.00    256.8±5.74µs        ? ?/sec    1.00    256.0±3.58µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs                                      1.27    370.5±3.94µs        ? ?/sec    1.00    292.5±1.63µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string                        1.13    345.4±3.14µs        ? ?/sec    1.00    305.8±1.22µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs                                     1.20    319.2±7.52µs        ? ?/sec    1.00    265.4±1.64µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs                                       1.25    378.6±4.48µs        ? ?/sec    1.00    301.7±5.25µs        ? ?/sec

...

arrow_array_reader/StringViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    252.8±3.56µs        ? ?/sec    1.03    261.6±5.36µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, half NULLs                                1.09    251.1±2.55µs        ? ?/sec    1.00    229.8±1.92µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, no NULLs                                  1.00    256.7±3.02µs        ? ?/sec    1.00    256.1±2.58µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, mandatory, no NULLs                                      1.13    500.0±7.89µs        ? ?/sec    1.00    444.1±2.78µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, half NULLs                                     1.15   386.8±22.22µs        ? ?/sec    1.00    337.2±3.66µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, no NULLs                                       1.12    508.2±8.79µs        ? ?/sec    1.00   453.9±10.55µs        ? ?/sec

alamb · 2026-01-13T12:26:06Z

I could not reproduce the benchmark results locally

     Running benches/arrow_reader.rs (target/release/deps/arrow_reader-0c5ec49ee5cbea6a)
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string
                        time:   [160.36 µs 160.64 µs 161.02 µs]
                        change: [−0.4158% −0.0942% +0.2111%] (p = 0.56 > 0.05)
                        No change in performance detected.
Found 11 outliers among 100 measurements (11.00%)
  3 (3.00%) high mild
  8 (8.00%) high severe
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs
                        time:   [147.70 µs 148.37 µs 149.07 µs]
                        change: [+0.7348% +1.2863% +1.8236%] (p = 0.00 < 0.05)
                        Change within noise threshold.
Found 25 outliers among 100 measurements (25.00%)
  19 (19.00%) low mild
  4 (4.00%) high mild
  2 (2.00%) high severe
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs
                        time:   [147.02 µs 147.41 µs 147.88 µs]
                        change: [−1.3623% −0.8303% −0.2939%] (p = 0.00 < 0.05)
                        Change within noise threshold.
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs
                        time:   [142.34 µs 142.93 µs 143.58 µs]
                        change: [−1.6259% −0.8845% −0.2890%] (p = 0.01 < 0.05)
                        Change within noise threshold.
Found 24 outliers among 100 measurements (24.00%)
  9 (9.00%) low severe
  2 (2.00%) low mild
  6 (6.00%) high mild
  7 (7.00%) high severe

However, note the number of outliers found

I will see if the benchmark needs adjusting (perhaps with more rows, etc)

…ew_allocations

…b/arrow-rs into alamb/less_parquet_view_allocations

alamb · 2026-01-15T12:26:03Z

parquet/src/arrow/buffer/view_buffer.rs

+        let views = ScalarBuffer::from(self.views);
+        let nulls = null_buffer
+            .map(|b| NullBuffer::new(BooleanBuffer::new(b, 0, len)))
+            .filter(|n| n.null_count() != 0);


replicates the behavior of ArrayDataBuilder in

https://github.com/apache/arrow-rs/blob/237065b2bbf9b0f249321828acd91f07387669a1/arrow-data/src/data.rs#L2120-L2119

alamb-ghbot · 2026-01-15T13:38:24Z

🤖: Benchmark completed

Details

group                                                                                                      alamb_less_parquet_view_allocations    main
-----                                                                                                      -----------------------------------    ----
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                           1.00   1007.2±6.04µs        ? ?/sec    1.00   1007.4±5.46µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                          1.00   1241.8±5.22µs        ? ?/sec    1.02  1261.2±11.51µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                            1.00  1014.6±14.09µs        ? ?/sec    1.00  1017.6±19.81µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, mandatory, no NULLs                                     1.00   502.1±29.06µs        ? ?/sec    1.01    509.2±3.22µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, half NULLs                                    1.00   661.4±17.65µs        ? ?/sec    1.06    699.8±6.51µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, no NULLs                                      1.00    488.9±8.17µs        ? ?/sec    1.06    518.9±3.66µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, mandatory, no NULLs                                          1.00    549.0±3.28µs        ? ?/sec    1.01    553.7±6.72µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, half NULLs                                         1.00    723.1±6.29µs        ? ?/sec    1.04   749.7±20.46µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, no NULLs                                           1.01   563.1±28.07µs        ? ?/sec    1.00    558.0±4.11µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, mandatory, no NULLs                                 1.01    280.1±2.11µs        ? ?/sec    1.00    277.4±3.74µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs                                1.10    262.1±5.11µs        ? ?/sec    1.00    239.2±3.27µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, no NULLs                                  1.00    276.9±2.46µs        ? ?/sec    1.03   286.4±26.14µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs                                      1.00    350.1±1.87µs        ? ?/sec    1.07    374.6±6.98µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string                        1.00    344.7±4.78µs        ? ?/sec    1.01    348.5±2.09µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs                                     1.05    313.8±3.08µs        ? ?/sec    1.00    299.5±3.04µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs                                       1.00    358.1±3.96µs        ? ?/sec    1.06    380.8±2.87µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs     1.06   972.6±13.08µs        ? ?/sec    1.00    917.6±8.06µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, half NULLs    1.09    824.5±3.74µs        ? ?/sec    1.00    759.0±8.68µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, no NULLs      1.06    978.1±7.28µs        ? ?/sec    1.00    926.8±9.95µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                 1.00    295.1±2.98µs        ? ?/sec    1.02    300.0±8.43µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                1.07    487.6±3.97µs        ? ?/sec    1.00    455.7±2.79µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                  1.00    304.2±8.06µs        ? ?/sec    1.01    307.2±7.12µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, mandatory, no NULLs        1.04    202.6±1.49µs        ? ?/sec    1.00    195.4±3.97µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, half NULLs       1.00    319.4±1.42µs        ? ?/sec    1.06    337.6±1.52µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, no NULLs         1.04    208.4±1.39µs        ? ?/sec    1.00    200.3±1.11µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, mandatory, no NULLs                    1.00    118.2±0.40µs        ? ?/sec    1.00    117.7±2.54µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, half NULLs                   1.00    275.9±1.37µs        ? ?/sec    1.09    299.5±5.86µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, no NULLs                     1.01    124.7±0.98µs        ? ?/sec    1.00    123.1±2.46µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, mandatory, no NULLs                    1.07    736.7±4.04µs        ? ?/sec    1.00    690.9±7.79µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, half NULLs                   1.10    585.7±4.13µs        ? ?/sec    1.00    531.9±4.43µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, no NULLs                     1.07    748.5±8.82µs        ? ?/sec    1.00    701.7±6.76µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, mandatory, no NULLs                                1.00     65.8±3.08µs        ? ?/sec    1.05     68.9±5.21µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, half NULLs                               1.16    254.6±4.80µs        ? ?/sec    1.00    219.0±2.13µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, no NULLs                                 1.00     71.9±0.76µs        ? ?/sec    1.06     76.5±5.68µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, mandatory, no NULLs                     1.09     94.4±1.24µs        ? ?/sec    1.00     86.7±0.62µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, half NULLs                    1.00    209.3±2.57µs        ? ?/sec    1.09    228.6±5.56µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, no NULLs                      1.08     99.5±0.51µs        ? ?/sec    1.00     92.0±0.48µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, mandatory, no NULLs                                 1.00      9.1±0.18µs        ? ?/sec    1.00      9.2±0.15µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, half NULLs                                1.00    164.8±0.60µs        ? ?/sec    1.14    187.7±2.29µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, no NULLs                                  1.01     14.5±0.33µs        ? ?/sec    1.00     14.3±0.26µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, mandatory, no NULLs                     1.08    184.1±2.92µs        ? ?/sec    1.00    170.7±4.02µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, half NULLs                    1.00   330.5±17.01µs        ? ?/sec    1.01    335.1±4.44µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, no NULLs                      1.08    191.1±9.14µs        ? ?/sec    1.00    176.2±1.54µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, mandatory, no NULLs                                 1.03     14.1±0.43µs        ? ?/sec    1.00     13.6±0.21µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, half NULLs                                1.00    243.6±0.88µs        ? ?/sec    1.06    257.9±3.38µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, no NULLs                                  1.00     19.7±0.58µs        ? ?/sec    1.01     20.0±0.25µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, mandatory, no NULLs                     1.07    366.1±9.89µs        ? ?/sec    1.00    340.9±3.48µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, half NULLs                    1.14    390.6±2.03µs        ? ?/sec    1.00    344.0±1.87µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, no NULLs                      1.07    372.3±5.90µs        ? ?/sec    1.00    348.2±4.45µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, mandatory, no NULLs                                 1.00     25.6±0.34µs        ? ?/sec    1.06     27.0±0.37µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, half NULLs                                1.17    219.5±0.93µs        ? ?/sec    1.00    187.3±0.82µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, no NULLs                                  1.00     32.9±0.42µs        ? ?/sec    1.02     33.7±0.40µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.00    109.1±2.29µs        ? ?/sec    1.02    111.3±1.00µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    128.5±0.75µs        ? ?/sec    1.01    129.8±0.94µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    112.2±1.20µs        ? ?/sec    1.02    114.4±1.26µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, mandatory, no NULLs                                1.00    160.5±4.69µs        ? ?/sec    1.00    160.3±1.19µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, half NULLs                               1.00    221.4±7.44µs        ? ?/sec    1.00    220.6±1.01µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, no NULLs                                 1.00    164.5±0.64µs        ? ?/sec    1.01    166.2±1.57µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.00     74.0±0.66µs        ? ?/sec    1.02     75.2±0.30µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.00    176.1±2.49µs        ? ?/sec    1.00    176.6±1.19µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00     79.4±0.85µs        ? ?/sec    1.00     79.5±1.44µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.01    142.4±0.32µs        ? ?/sec    1.00   140.4±18.65µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, half NULLs                          1.01    213.3±2.12µs        ? ?/sec    1.00    210.5±0.99µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, no NULLs                            1.04    148.5±1.87µs        ? ?/sec    1.00    142.5±3.02µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, mandatory, no NULLs                                1.03     72.4±0.78µs        ? ?/sec    1.00     70.3±1.75µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, half NULLs                               1.03    177.5±5.72µs        ? ?/sec    1.00    172.4±1.12µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, no NULLs                                 1.04     78.7±1.18µs        ? ?/sec    1.00     75.7±0.72µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.02    110.3±1.91µs        ? ?/sec    1.00    108.2±1.19µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    130.9±0.76µs        ? ?/sec    1.03    134.9±0.98µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    111.8±0.55µs        ? ?/sec    1.01    113.1±1.23µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, mandatory, no NULLs                                1.01    163.6±1.12µs        ? ?/sec    1.00    161.8±0.99µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, half NULLs                               1.00    233.7±2.60µs        ? ?/sec    1.00    233.2±4.58µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, no NULLs                                 1.01    169.2±1.74µs        ? ?/sec    1.00    167.6±1.39µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.00    200.4±0.61µs        ? ?/sec    1.01    202.8±1.62µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.00    248.9±4.58µs        ? ?/sec    1.00    249.0±0.97µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00    207.9±2.25µs        ? ?/sec    1.00    208.6±1.75µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.00    142.7±0.92µs        ? ?/sec    1.08    153.7±1.02µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, half NULLs                          1.00    216.2±0.93µs        ? ?/sec    1.06    229.3±1.38µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, no NULLs                            1.00    146.7±0.81µs        ? ?/sec    1.08    159.1±1.21µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, mandatory, no NULLs                                1.05    102.3±1.30µs        ? ?/sec    1.00     97.8±0.64µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, half NULLs                               1.02    197.6±1.88µs        ? ?/sec    1.00    193.4±1.51µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, no NULLs                                 1.03    109.2±1.62µs        ? ?/sec    1.00    106.0±0.82µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, mandatory, no NULLs                                      1.00     77.3±2.35µs        ? ?/sec    1.00     77.4±0.75µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, half NULLs                                     1.00    101.7±0.21µs        ? ?/sec    1.00    101.8±1.10µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, no NULLs                                       1.00     79.8±1.32µs        ? ?/sec    1.00     80.1±0.45µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, mandatory, no NULLs                                           1.00    106.4±0.42µs        ? ?/sec    1.01    108.0±2.63µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, half NULLs                                          1.01    173.2±6.18µs        ? ?/sec    1.00    171.4±1.80µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, no NULLs                                            1.00    110.8±0.62µs        ? ?/sec    1.01    111.7±0.82µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, mandatory, no NULLs                               1.01     42.8±0.24µs        ? ?/sec    1.00     42.4±0.21µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, half NULLs                              1.02    139.7±0.91µs        ? ?/sec    1.00    136.7±1.03µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, no NULLs                                1.01     47.0±0.60µs        ? ?/sec    1.00     46.7±0.35µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, mandatory, no NULLs                                      1.09    110.2±2.05µs        ? ?/sec    1.00    101.3±1.00µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, half NULLs                                     1.02    176.0±1.46µs        ? ?/sec    1.00    172.5±1.01µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, no NULLs                                       1.08    115.0±2.24µs        ? ?/sec    1.00    106.7±1.02µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, mandatory, no NULLs                                           1.00     36.7±0.15µs        ? ?/sec    1.00     36.8±0.47µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, half NULLs                                          1.01    136.8±1.25µs        ? ?/sec    1.00    135.2±2.04µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, no NULLs                                            1.00     41.2±0.13µs        ? ?/sec    1.00     41.3±0.47µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, mandatory, no NULLs                                      1.00     82.6±0.86µs        ? ?/sec    1.02     84.4±1.87µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, half NULLs                                     1.00    100.1±0.91µs        ? ?/sec    1.01    100.7±0.44µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, no NULLs                                       1.00     85.3±0.72µs        ? ?/sec    1.02     86.8±0.51µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, mandatory, no NULLs                                           1.00    107.1±1.91µs        ? ?/sec    1.02    109.0±3.11µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, half NULLs                                          1.00    163.6±5.81µs        ? ?/sec    1.01    165.2±9.61µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, no NULLs                                            1.00    111.5±2.18µs        ? ?/sec    1.03    114.7±7.15µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, mandatory, no NULLs                               1.00     23.4±0.20µs        ? ?/sec    1.00     23.5±0.25µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, half NULLs                              1.00    118.3±2.39µs        ? ?/sec    1.00    118.4±1.82µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, no NULLs                                1.00     27.7±0.44µs        ? ?/sec    1.00     27.6±0.24µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, mandatory, no NULLs                                      1.11     91.5±0.54µs        ? ?/sec    1.00     82.5±0.56µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, half NULLs                                     1.00    156.7±2.60µs        ? ?/sec    1.01   157.9±23.24µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, no NULLs                                       1.10     96.5±2.02µs        ? ?/sec    1.00     88.0±1.37µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, mandatory, no NULLs                                           1.00     15.2±0.43µs        ? ?/sec    1.01     15.5±0.53µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, half NULLs                                          1.01    116.7±3.89µs        ? ?/sec    1.00    116.0±1.03µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, no NULLs                                            1.00     21.3±0.65µs        ? ?/sec    1.00     21.2±0.20µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, mandatory, no NULLs                                      1.00     80.7±1.36µs        ? ?/sec    1.00     80.6±0.37µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, half NULLs                                     1.00    101.2±0.56µs        ? ?/sec    1.01    102.0±1.43µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, no NULLs                                       1.00     83.1±0.53µs        ? ?/sec    1.00     83.1±0.61µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, mandatory, no NULLs                                           1.00    107.7±2.01µs        ? ?/sec    1.01    108.5±1.17µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, half NULLs                                          1.00    164.6±2.04µs        ? ?/sec    1.05    173.0±0.94µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, no NULLs                                            1.00    110.1±1.92µs        ? ?/sec    1.02    112.3±1.86µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, mandatory, no NULLs                               1.00    146.2±1.73µs        ? ?/sec    1.00    146.0±0.62µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, half NULLs                              1.00    188.8±1.29µs        ? ?/sec    1.01    190.4±0.96µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, no NULLs                                1.00    150.8±0.93µs        ? ?/sec    1.00    150.9±1.13µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, mandatory, no NULLs                                      1.00     88.8±3.26µs        ? ?/sec    1.09     97.0±0.58µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, half NULLs                                     1.00    157.8±2.93µs        ? ?/sec    1.04    163.9±1.60µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, no NULLs                                       1.00     92.6±0.41µs        ? ?/sec    1.11    102.8±1.14µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, mandatory, no NULLs                                           1.08     43.9±1.30µs        ? ?/sec    1.00     40.8±0.90µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, half NULLs                                          1.00    131.7±1.78µs        ? ?/sec    1.02    133.9±2.04µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, no NULLs                                            1.09     50.6±1.06µs        ? ?/sec    1.00     46.6±2.27µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, mandatory, no NULLs                                       1.00     81.3±2.81µs        ? ?/sec    1.01     81.8±0.36µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, half NULLs                                      1.00    102.9±1.94µs        ? ?/sec    1.00    102.9±2.49µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, no NULLs                                        1.00     83.9±0.60µs        ? ?/sec    1.01     84.7±0.33µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, mandatory, no NULLs                                            1.00    108.1±1.76µs        ? ?/sec    1.01    109.5±1.49µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, half NULLs                                           1.00    169.1±1.83µs        ? ?/sec    1.01    170.0±2.79µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, no NULLs                                             1.00    112.7±0.64µs        ? ?/sec    1.02    114.6±1.39µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, mandatory, no NULLs                                1.00     35.0±0.81µs        ? ?/sec    1.00     34.9±0.16µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, half NULLs                               1.00    130.3±2.43µs        ? ?/sec    1.00    129.9±5.94µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, no NULLs                                 1.00     38.9±0.30µs        ? ?/sec    1.00     39.0±0.39µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, mandatory, no NULLs                                       1.10    102.8±1.06µs        ? ?/sec    1.00     93.8±0.76µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, half NULLs                                      1.02    168.9±1.63µs        ? ?/sec    1.00    166.2±5.23µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, no NULLs                                        1.08    107.5±0.88µs        ? ?/sec    1.00     99.6±1.73µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, mandatory, no NULLs                                            1.00     28.6±0.18µs        ? ?/sec    1.00     28.6±0.29µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, half NULLs                                           1.01    128.4±1.34µs        ? ?/sec    1.00    127.3±1.43µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, no NULLs                                             1.00     33.3±0.14µs        ? ?/sec    1.00     33.4±0.52µs        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings half NULLs                                     1.03      7.5±0.15ms        ? ?/sec    1.00      7.3±0.10ms        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings no NULLs                                       1.02     13.5±0.46ms        ? ?/sec    1.00     13.2±0.24ms        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, mandatory, no NULLs                                     1.00    489.7±2.93µs        ? ?/sec    1.05    514.1±6.09µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, half NULLs                                    1.00    663.2±5.61µs        ? ?/sec    1.06    700.1±4.16µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, no NULLs                                      1.00    497.8±5.95µs        ? ?/sec    1.04    519.7±5.37µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, mandatory, no NULLs                                          1.02   672.1±41.97µs        ? ?/sec    1.00   659.2±13.17µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, half NULLs                                         1.00   778.5±26.81µs        ? ?/sec    1.02    795.4±6.25µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, no NULLs                                           1.00    675.1±8.29µs        ? ?/sec    1.01    680.4±9.25µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, mandatory, no NULLs                                1.00    335.0±4.32µs        ? ?/sec    1.00    334.9±2.43µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, half NULLs                               1.09    411.1±2.72µs        ? ?/sec    1.00    378.1±4.92µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, no NULLs                                 1.00    339.7±2.96µs        ? ?/sec    1.00    340.6±5.03µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    274.8±3.32µs        ? ?/sec    1.00    273.5±2.32µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, half NULLs                                1.16    270.3±5.97µs        ? ?/sec    1.00    232.8±1.59µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, no NULLs                                  1.03    287.8±1.96µs        ? ?/sec    1.00    279.1±2.46µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, mandatory, no NULLs                                      1.00   494.0±21.43µs        ? ?/sec    1.02    504.5±4.08µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, half NULLs                                     1.05    379.7±6.70µs        ? ?/sec    1.00    361.8±2.36µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, no NULLs                                       1.00   501.5±35.47µs        ? ?/sec    1.03   515.5±14.32µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, mandatory, no NULLs                                     1.00     92.8±0.39µs        ? ?/sec    1.01     93.6±0.47µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, half NULLs                                    1.01    111.1±1.61µs        ? ?/sec    1.00    110.4±0.55µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, no NULLs                                      1.01     96.8±4.97µs        ? ?/sec    1.00     96.0±0.38µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, mandatory, no NULLs                                          1.00    126.9±1.28µs        ? ?/sec    1.01    127.9±2.72µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, half NULLs                                         1.00    184.9±1.17µs        ? ?/sec    1.00    184.6±6.87µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, no NULLs                                           1.00    131.2±0.81µs        ? ?/sec    1.01    132.2±0.52µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, mandatory, no NULLs                              1.01     43.0±0.27µs        ? ?/sec    1.00     42.6±0.13µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, half NULLs                             1.00    138.2±0.83µs        ? ?/sec    1.00    137.6±1.14µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, no NULLs                               1.01     47.2±0.47µs        ? ?/sec    1.00     46.7±0.42µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, mandatory, no NULLs                                     1.08    110.1±0.50µs        ? ?/sec    1.00    101.7±0.70µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, half NULLs                                    1.03    177.8±6.29µs        ? ?/sec    1.00    172.3±0.85µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, no NULLs                                      1.08    115.3±3.22µs        ? ?/sec    1.00    107.1±1.75µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, mandatory, no NULLs                                          1.00     36.4±0.31µs        ? ?/sec    1.01     36.6±0.31µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, half NULLs                                         1.01    136.1±4.84µs        ? ?/sec    1.00    134.8±0.91µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, no NULLs                                           1.00     41.2±0.20µs        ? ?/sec    1.00     41.3±0.23µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, mandatory, no NULLs                                     1.00     82.5±1.50µs        ? ?/sec    1.02     84.3±1.01µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, half NULLs                                    1.00    100.5±2.08µs        ? ?/sec    1.01    101.5±3.51µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, no NULLs                                      1.00     85.4±0.69µs        ? ?/sec    1.02     87.3±1.30µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, mandatory, no NULLs                                          1.00    107.1±4.34µs        ? ?/sec    1.02    108.9±1.92µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, half NULLs                                         1.00    163.2±0.92µs        ? ?/sec    1.00    163.7±1.79µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, no NULLs                                           1.00    111.3±4.61µs        ? ?/sec    1.02    113.3±0.84µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, mandatory, no NULLs                              1.00     24.0±0.18µs        ? ?/sec    1.00     24.1±0.22µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, half NULLs                             1.01    118.8±1.85µs        ? ?/sec    1.00    117.8±0.58µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, no NULLs                               1.01     28.4±0.33µs        ? ?/sec    1.00     28.2±0.17µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, mandatory, no NULLs                                     1.10     91.6±0.74µs        ? ?/sec    1.00     83.1±0.80µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, half NULLs                                    1.02    157.7±1.86µs        ? ?/sec    1.00    154.2±2.92µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, no NULLs                                      1.10     97.3±4.70µs        ? ?/sec    1.00     88.5±1.29µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, mandatory, no NULLs                                          1.05     19.2±0.28µs        ? ?/sec    1.00     18.3±0.55µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, half NULLs                                         1.01    117.1±2.37µs        ? ?/sec    1.00    116.1±2.04µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, no NULLs                                           1.06     23.8±0.47µs        ? ?/sec    1.00     22.4±0.20µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, mandatory, no NULLs                                     1.01     81.7±1.03µs        ? ?/sec    1.00     81.1±1.10µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, half NULLs                                    1.00    101.3±1.49µs        ? ?/sec    1.01    101.9±0.44µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, no NULLs                                      1.00     83.5±0.66µs        ? ?/sec    1.00     83.1±0.89µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, mandatory, no NULLs                                          1.00    107.7±1.43µs        ? ?/sec    1.00    108.0±1.13µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, half NULLs                                         1.00    165.0±2.46µs        ? ?/sec    1.06    174.2±2.55µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, no NULLs                                           1.00    110.6±2.20µs        ? ?/sec    1.02    112.5±0.62µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, mandatory, no NULLs                              1.00    146.7±1.22µs        ? ?/sec    1.00    146.8±0.94µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, half NULLs                             1.00    189.4±1.70µs        ? ?/sec    1.01    190.3±0.81µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, no NULLs                               1.00    151.4±0.63µs        ? ?/sec    1.01    152.3±2.00µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, mandatory, no NULLs                                     1.00     88.0±0.85µs        ? ?/sec    1.12     98.5±1.80µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, half NULLs                                    1.00    157.9±3.51µs        ? ?/sec    1.04    164.0±0.89µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, no NULLs                                      1.00     93.0±2.26µs        ? ?/sec    1.11    103.2±0.82µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, mandatory, no NULLs                                          1.06     43.5±1.04µs        ? ?/sec    1.00     40.9±1.42µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, half NULLs                                         1.00    131.8±0.93µs        ? ?/sec    1.02    134.3±2.49µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, no NULLs                                           1.02     49.3±1.41µs        ? ?/sec    1.00     48.3±1.92µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, mandatory, no NULLs                                      1.00     88.5±2.23µs        ? ?/sec    1.02     90.6±2.95µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, half NULLs                                     1.00    105.6±1.04µs        ? ?/sec    1.02    107.2±3.51µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, no NULLs                                       1.00     91.2±2.81µs        ? ?/sec    1.02     93.0±1.29µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, mandatory, no NULLs                                           1.00    118.1±1.83µs        ? ?/sec    1.02    120.2±0.73µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, half NULLs                                          1.00    174.6±2.08µs        ? ?/sec    1.00    175.4±1.99µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, no NULLs                                            1.00    123.0±4.06µs        ? ?/sec    1.02    126.1±7.05µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, mandatory, no NULLs                               1.01     34.9±0.44µs        ? ?/sec    1.00     34.5±0.14µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, half NULLs                              1.01    130.2±1.52µs        ? ?/sec    1.00    129.5±0.50µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, no NULLs                                1.00     39.0±0.11µs        ? ?/sec    1.00     38.8±0.16µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, mandatory, no NULLs                                      1.10    102.8±0.86µs        ? ?/sec    1.00     93.7±1.21µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, half NULLs                                     1.02    168.7±0.89µs        ? ?/sec    1.00    165.2±5.35µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, no NULLs                                       1.08    107.6±2.68µs        ? ?/sec    1.00     99.7±2.81µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, mandatory, no NULLs                                           1.01     28.8±0.29µs        ? ?/sec    1.00     28.6±0.11µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, half NULLs                                          1.00    127.7±1.11µs        ? ?/sec    1.00    127.6±3.60µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, no NULLs                                            1.00     33.4±0.22µs        ? ?/sec    1.00     33.5±0.22µs        ? ?/sec

alamb-ghbot · 2026-01-15T13:38:27Z

🤖 ./gh_compare_arrow.sh gh_compare_arrow.sh Running
Linux aal-dev 6.14.0-1018-gcp #19~24.04.1-Ubuntu SMP Wed Sep 24 23:23:09 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Comparing alamb/less_parquet_view_allocations (9e4bbb8) to d81d6c3 diff
BENCH_NAME=arrow_reader
BENCH_COMMAND=cargo bench --features=arrow,async,test_common,experimental --bench arrow_reader
BENCH_FILTER=
BENCH_BRANCH_NAME=alamb_less_parquet_view_allocations
Results will be posted here when complete

alamb-ghbot · 2026-01-15T14:53:42Z

🤖: Benchmark completed

Details

group                                                                                                      alamb_less_parquet_view_allocations    main
-----                                                                                                      -----------------------------------    ----
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                           1.06   1070.2±6.02µs        ? ?/sec    1.00   1005.8±4.72µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                          1.00   1180.5±3.78µs        ? ?/sec    1.07  1264.1±13.94µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                            1.06   1077.0±4.94µs        ? ?/sec    1.00   1017.3±7.77µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, mandatory, no NULLs                                     1.00   485.0±11.00µs        ? ?/sec    1.04    502.7±5.71µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, half NULLs                                    1.00    666.4±8.20µs        ? ?/sec    1.05    697.3±4.76µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, no NULLs                                      1.00    498.1±4.19µs        ? ?/sec    1.04    515.8±4.64µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, mandatory, no NULLs                                          1.01   552.4±13.37µs        ? ?/sec    1.00    545.3±7.70µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, half NULLs                                         1.00   729.9±11.78µs        ? ?/sec    1.03    751.8±6.84µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, no NULLs                                           1.00    558.0±6.34µs        ? ?/sec    1.00    557.6±4.20µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    270.3±4.43µs        ? ?/sec    1.04    280.3±4.12µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs                                1.04    240.2±2.87µs        ? ?/sec    1.00    231.5±3.62µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, no NULLs                                  1.00    274.9±4.35µs        ? ?/sec    1.01    278.2±3.97µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs                                      1.00   352.1±10.76µs        ? ?/sec    1.07    376.8±5.89µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string                        1.00    324.5±3.75µs        ? ?/sec    1.08    350.0±3.34µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs                                     1.00    290.8±3.70µs        ? ?/sec    1.03    298.8±2.92µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs                                       1.00    360.0±3.41µs        ? ?/sec    1.06    382.9±1.37µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs     1.09   1013.0±5.81µs        ? ?/sec    1.00    929.1±2.90µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, half NULLs    1.14    875.9±7.31µs        ? ?/sec    1.00   768.5±10.64µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, no NULLs      1.09  1024.6±18.13µs        ? ?/sec    1.00   938.9±10.14µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                 1.09    339.9±2.81µs        ? ?/sec    1.00    312.4±4.76µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                1.14    524.4±2.56µs        ? ?/sec    1.00    459.8±5.66µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                  1.10    345.9±3.94µs        ? ?/sec    1.00    314.6±7.73µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, mandatory, no NULLs        1.00    160.6±0.97µs        ? ?/sec    1.21    195.0±1.61µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, half NULLs       1.00    276.8±3.77µs        ? ?/sec    1.22    336.5±2.26µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, no NULLs         1.00    165.8±1.07µs        ? ?/sec    1.20    199.7±0.62µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, mandatory, no NULLs                    1.00     76.8±0.69µs        ? ?/sec    1.54    117.9±1.18µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, half NULLs                   1.00    233.8±3.28µs        ? ?/sec    1.27    298.0±4.98µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, no NULLs                     1.00     82.6±1.28µs        ? ?/sec    1.50    123.5±2.53µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, mandatory, no NULLs                    1.07    738.4±9.80µs        ? ?/sec    1.00    689.4±1.77µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, half NULLs                   1.13   593.4±10.86µs        ? ?/sec    1.00    525.0±3.46µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, no NULLs                     1.07    744.6±9.58µs        ? ?/sec    1.00    696.6±3.72µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, mandatory, no NULLs                                1.00     61.1±2.87µs        ? ?/sec    1.13     69.3±2.22µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, half NULLs                               1.17    258.1±4.77µs        ? ?/sec    1.00    220.7±0.77µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, no NULLs                                 1.00     73.5±5.26µs        ? ?/sec    1.08     79.4±3.09µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, mandatory, no NULLs                     1.11     95.4±5.40µs        ? ?/sec    1.00     86.0±0.35µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, half NULLs                    1.00   210.2±14.75µs        ? ?/sec    1.08    226.4±1.05µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, no NULLs                      1.08     99.5±0.73µs        ? ?/sec    1.00     92.0±0.54µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, mandatory, no NULLs                                 1.02      9.2±0.15µs        ? ?/sec    1.00      9.1±0.53µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, half NULLs                                1.00    164.7±0.66µs        ? ?/sec    1.15   189.6±17.02µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, no NULLs                                  1.02     14.3±0.15µs        ? ?/sec    1.00     14.1±0.19µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, mandatory, no NULLs                     1.09    184.7±4.49µs        ? ?/sec    1.00    169.5±0.64µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, half NULLs                    1.00    329.1±1.12µs        ? ?/sec    1.01    333.7±3.61µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, no NULLs                      1.08    189.9±2.78µs        ? ?/sec    1.00    175.8±0.60µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, mandatory, no NULLs                                 1.00     12.7±0.20µs        ? ?/sec    1.09     13.9±0.26µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, half NULLs                                1.00    245.1±5.54µs        ? ?/sec    1.05    256.3±3.84µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, no NULLs                                  1.00     19.5±0.31µs        ? ?/sec    1.00     19.5±0.25µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, mandatory, no NULLs                     1.08    367.7±5.31µs        ? ?/sec    1.00    340.8±1.65µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, half NULLs                    1.13    388.3±1.50µs        ? ?/sec    1.00    344.1±5.26µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, no NULLs                      1.08    373.5±2.21µs        ? ?/sec    1.00    346.2±1.09µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, mandatory, no NULLs                                 1.00     23.6±1.05µs        ? ?/sec    1.21     28.6±0.49µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, half NULLs                                1.17    218.0±0.94µs        ? ?/sec    1.00    185.6±2.81µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, no NULLs                                  1.00     31.8±0.35µs        ? ?/sec    1.04     33.2±0.49µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.00    109.5±2.12µs        ? ?/sec    1.02    111.3±2.03µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    129.7±2.19µs        ? ?/sec    1.01    131.2±5.74µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    112.7±2.95µs        ? ?/sec    1.02    114.4±2.01µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, mandatory, no NULLs                                1.00    159.6±4.65µs        ? ?/sec    1.01    162.0±1.51µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, half NULLs                               1.00    222.0±2.45µs        ? ?/sec    1.00    220.9±1.71µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, no NULLs                                 1.00    164.3±2.01µs        ? ?/sec    1.02    167.2±3.06µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.00     73.8±0.78µs        ? ?/sec    1.04     76.4±1.95µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.01    175.9±1.87µs        ? ?/sec    1.00    174.4±1.51µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00     80.8±0.21µs        ? ?/sec    1.00     80.9±1.37µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.07    145.0±2.56µs        ? ?/sec    1.00    135.2±1.08µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, half NULLs                          1.03    216.7±1.51µs        ? ?/sec    1.00    210.0±3.02µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, no NULLs                            1.06    149.8±0.48µs        ? ?/sec    1.00    140.8±0.49µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, mandatory, no NULLs                                1.00     72.4±1.18µs        ? ?/sec    1.02     73.8±0.88µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, half NULLs                               1.01    175.1±4.52µs        ? ?/sec    1.00    173.6±2.35µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, no NULLs                                 1.00     77.1±1.33µs        ? ?/sec    1.03     79.3±0.44µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.00    108.2±0.54µs        ? ?/sec    1.01    109.6±0.59µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    130.9±0.60µs        ? ?/sec    1.02    133.5±0.58µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    110.9±0.56µs        ? ?/sec    1.01    112.4±2.23µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, mandatory, no NULLs                                1.01    163.3±2.16µs        ? ?/sec    1.00    161.6±0.90µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, half NULLs                               1.00    231.6±1.51µs        ? ?/sec    1.00    231.2±2.97µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, no NULLs                                 1.01    167.9±2.38µs        ? ?/sec    1.00    166.7±2.10µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.00    200.1±3.90µs        ? ?/sec    1.00    200.6±1.22µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.00    248.7±1.45µs        ? ?/sec    1.00    248.4±4.45µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00    205.3±0.66µs        ? ?/sec    1.01    207.0±0.98µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.00    141.5±2.79µs        ? ?/sec    1.07    150.9±0.51µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, half NULLs                          1.00    218.8±1.29µs        ? ?/sec    1.01    221.3±3.21µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, no NULLs                            1.00    147.1±1.00µs        ? ?/sec    1.07    157.3±2.09µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, mandatory, no NULLs                                1.03    106.3±0.60µs        ? ?/sec    1.00    103.1±1.13µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, half NULLs                               1.00    195.0±1.21µs        ? ?/sec    1.00    194.9±1.15µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, no NULLs                                 1.00    114.6±2.44µs        ? ?/sec    1.01    115.2±2.24µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, mandatory, no NULLs                                      1.00     77.2±1.50µs        ? ?/sec    1.00     77.4±1.30µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, half NULLs                                     1.00    101.6±0.78µs        ? ?/sec    1.00    101.8±0.55µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, no NULLs                                       1.00     79.6±0.46µs        ? ?/sec    1.01     80.0±0.89µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, mandatory, no NULLs                                           1.00    106.3±1.13µs        ? ?/sec    1.01    107.4±1.12µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, half NULLs                                          1.00    171.3±0.97µs        ? ?/sec    1.00    171.8±0.51µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, no NULLs                                            1.00    110.7±1.97µs        ? ?/sec    1.01    111.6±0.79µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, mandatory, no NULLs                               1.05     42.9±0.77µs        ? ?/sec    1.00     40.8±0.24µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, half NULLs                              1.00    138.5±1.73µs        ? ?/sec    1.00    137.8±0.89µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, no NULLs                                1.03     46.7±0.34µs        ? ?/sec    1.00     45.2±0.17µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, mandatory, no NULLs                                      1.08    109.7±0.30µs        ? ?/sec    1.00    101.8±2.25µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, half NULLs                                     1.03    177.8±2.03µs        ? ?/sec    1.00    172.8±1.35µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, no NULLs                                       1.07    114.4±0.64µs        ? ?/sec    1.00    106.7±0.34µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, mandatory, no NULLs                                           1.00     36.7±0.15µs        ? ?/sec    1.00     36.7±0.13µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, half NULLs                                          1.00    135.5±1.87µs        ? ?/sec    1.00    135.8±2.73µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, no NULLs                                            1.00     41.0±0.29µs        ? ?/sec    1.00     41.1±0.20µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, mandatory, no NULLs                                      1.00     82.3±1.04µs        ? ?/sec    1.02     84.0±0.28µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, half NULLs                                     1.00    100.1±1.06µs        ? ?/sec    1.01    100.9±1.14µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, no NULLs                                       1.00     85.1±1.54µs        ? ?/sec    1.02     87.0±0.64µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, mandatory, no NULLs                                           1.00    106.4±2.51µs        ? ?/sec    1.02    108.5±1.56µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, half NULLs                                          1.00    163.7±2.54µs        ? ?/sec    1.00    163.4±1.11µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, no NULLs                                            1.00    110.4±2.33µs        ? ?/sec    1.02    113.0±0.45µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, mandatory, no NULLs                               1.00     23.3±0.74µs        ? ?/sec    1.01     23.6±0.45µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, half NULLs                              1.00    117.6±1.69µs        ? ?/sec    1.01    118.5±1.03µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, no NULLs                                1.00     27.5±0.26µs        ? ?/sec    1.02     27.9±0.29µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, mandatory, no NULLs                                      1.11     91.8±2.47µs        ? ?/sec    1.00     82.5±1.10µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, half NULLs                                     1.03    158.0±0.60µs        ? ?/sec    1.00    153.6±0.64µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, no NULLs                                       1.09     96.0±0.84µs        ? ?/sec    1.00     87.8±0.53µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, mandatory, no NULLs                                           1.00     15.1±0.45µs        ? ?/sec    1.00     15.2±0.37µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, half NULLs                                          1.00    116.0±2.81µs        ? ?/sec    1.00    116.3±2.44µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, no NULLs                                            1.00     21.0±0.36µs        ? ?/sec    1.02     21.3±0.33µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, mandatory, no NULLs                                      1.00     81.2±1.21µs        ? ?/sec    1.00     80.8±0.56µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, half NULLs                                     1.01    102.3±0.97µs        ? ?/sec    1.00    101.8±0.95µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, no NULLs                                       1.01     84.0±2.02µs        ? ?/sec    1.00     83.3±0.84µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, mandatory, no NULLs                                           1.00    107.8±0.81µs        ? ?/sec    1.01    108.6±0.80µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, half NULLs                                          1.00    166.9±2.05µs        ? ?/sec    1.00    166.6±0.76µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, no NULLs                                            1.00    110.8±1.53µs        ? ?/sec    1.00    111.3±2.58µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, mandatory, no NULLs                               1.00    146.4±1.66µs        ? ?/sec    1.00    146.1±0.62µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, half NULLs                              1.00    189.5±2.14µs        ? ?/sec    1.00    190.3±1.24µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, no NULLs                                1.00    151.1±1.24µs        ? ?/sec    1.00    150.9±1.00µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, mandatory, no NULLs                                      1.00     88.1±1.19µs        ? ?/sec    1.11     97.4±0.77µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, half NULLs                                     1.00    160.0±2.41µs        ? ?/sec    1.02    163.3±2.38µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, no NULLs                                       1.00     92.8±0.82µs        ? ?/sec    1.10    102.0±0.64µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, mandatory, no NULLs                                           1.00     40.1±1.76µs        ? ?/sec    1.05     42.2±2.37µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, half NULLs                                          1.00    132.8±4.53µs        ? ?/sec    1.00    132.4±1.23µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, no NULLs                                            1.00     46.1±2.50µs        ? ?/sec    1.01     46.3±2.06µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, mandatory, no NULLs                                       1.01     82.4±1.39µs        ? ?/sec    1.00     81.7±0.70µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, half NULLs                                      1.00    102.4±0.95µs        ? ?/sec    1.00    102.7±1.24µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, no NULLs                                        1.00     84.1±1.03µs        ? ?/sec    1.00     84.4±0.23µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, mandatory, no NULLs                                            1.00    108.2±0.48µs        ? ?/sec    1.01    109.0±0.65µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, half NULLs                                           1.00    169.8±3.23µs        ? ?/sec    1.00    170.2±3.66µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, no NULLs                                             1.00    112.8±0.87µs        ? ?/sec    1.01    114.0±0.44µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, mandatory, no NULLs                                1.00     34.8±0.63µs        ? ?/sec    1.00     34.7±0.47µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, half NULLs                               1.01    130.9±0.99µs        ? ?/sec    1.00    129.3±0.56µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, no NULLs                                 1.00     39.1±1.16µs        ? ?/sec    1.00     39.0±0.22µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, mandatory, no NULLs                                       1.09    102.4±0.66µs        ? ?/sec    1.00     93.7±0.44µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, half NULLs                                      1.04    170.5±1.05µs        ? ?/sec    1.00    164.4±2.31µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, no NULLs                                        1.08    107.1±0.68µs        ? ?/sec    1.00     98.9±0.53µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, mandatory, no NULLs                                            1.00     28.7±0.22µs        ? ?/sec    1.00     28.6±0.25µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, half NULLs                                           1.01    128.6±1.36µs        ? ?/sec    1.00    127.7±3.39µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, no NULLs                                             1.00     33.4±0.33µs        ? ?/sec    1.00     33.3±0.24µs        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings half NULLs                                     1.04      7.5±0.15ms        ? ?/sec    1.00      7.3±0.08ms        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings no NULLs                                       1.02     13.0±0.27ms        ? ?/sec    1.00     12.8±0.12ms        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, mandatory, no NULLs                                     1.00   488.2±15.54µs        ? ?/sec    1.06    516.0±4.71µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, half NULLs                                    1.00   665.9±17.67µs        ? ?/sec    1.04    692.0±3.74µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, no NULLs                                      1.00   505.6±35.64µs        ? ?/sec    1.01    508.5±7.36µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, mandatory, no NULLs                                          1.02   649.9±12.20µs        ? ?/sec    1.00    639.2±3.94µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, half NULLs                                         1.00    781.7±7.73µs        ? ?/sec    1.01    789.6±7.29µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, no NULLs                                           1.01   657.7±11.93µs        ? ?/sec    1.00   651.0±11.53µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, mandatory, no NULLs                                1.02    345.6±8.79µs        ? ?/sec    1.00    338.4±5.40µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, half NULLs                               1.11    416.3±7.45µs        ? ?/sec    1.00    374.6±4.53µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, no NULLs                                 1.03   353.3±11.27µs        ? ?/sec    1.00    344.2±4.06µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, mandatory, no NULLs                                 1.01    274.2±2.40µs        ? ?/sec    1.00    271.2±4.02µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, half NULLs                                1.05    240.4±0.94µs        ? ?/sec    1.00    230.1±1.69µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, no NULLs                                  1.00    277.6±2.41µs        ? ?/sec    1.00    276.7±3.68µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, mandatory, no NULLs                                      1.01    506.5±6.99µs        ? ?/sec    1.00    503.3±5.39µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, half NULLs                                     1.04    364.8±9.48µs        ? ?/sec    1.00    351.6±3.12µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, no NULLs                                       1.01   519.1±36.53µs        ? ?/sec    1.00   512.2±11.52µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, mandatory, no NULLs                                     1.00     92.8±1.54µs        ? ?/sec    1.01     93.5±0.42µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, half NULLs                                    1.00    111.0±1.41µs        ? ?/sec    1.00    111.1±1.57µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, no NULLs                                      1.00     95.2±0.61µs        ? ?/sec    1.03     98.1±1.40µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, mandatory, no NULLs                                          1.00    127.0±2.73µs        ? ?/sec    1.00    127.4±1.13µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, half NULLs                                         1.00    183.7±0.72µs        ? ?/sec    1.01    184.9±2.47µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, no NULLs                                           1.00    130.6±1.33µs        ? ?/sec    1.01    132.5±4.14µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, mandatory, no NULLs                              1.02     43.1±0.33µs        ? ?/sec    1.00     42.5±0.18µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, half NULLs                             1.00    137.4±0.70µs        ? ?/sec    1.00    137.5±1.01µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, no NULLs                               1.01     47.1±0.39µs        ? ?/sec    1.00     46.7±0.58µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, mandatory, no NULLs                                     1.09    110.1±0.45µs        ? ?/sec    1.00    101.2±1.15µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, half NULLs                                    1.04    178.3±2.89µs        ? ?/sec    1.00    172.2±2.71µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, no NULLs                                      1.08    115.1±0.64µs        ? ?/sec    1.00    107.0±0.62µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, mandatory, no NULLs                                          1.00     36.4±0.22µs        ? ?/sec    1.00     36.6±0.19µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, half NULLs                                         1.00    134.7±0.82µs        ? ?/sec    1.00    135.2±2.69µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, no NULLs                                           1.00     41.2±0.17µs        ? ?/sec    1.00     41.1±0.20µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, mandatory, no NULLs                                     1.00     82.3±1.16µs        ? ?/sec    1.03     84.4±0.30µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, half NULLs                                    1.00    100.0±1.32µs        ? ?/sec    1.02    101.6±3.48µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, no NULLs                                      1.00     85.0±1.11µs        ? ?/sec    1.02     87.1±1.20µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, mandatory, no NULLs                                          1.00    106.0±1.66µs        ? ?/sec    1.03    109.3±1.11µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, half NULLs                                         1.00    163.5±1.78µs        ? ?/sec    1.01    164.4±0.69µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, no NULLs                                           1.00    110.8±1.45µs        ? ?/sec    1.02    113.3±0.90µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, mandatory, no NULLs                              1.01     23.8±0.38µs        ? ?/sec    1.00     23.5±0.18µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, half NULLs                             1.02    120.7±2.76µs        ? ?/sec    1.00    118.6±0.72µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, no NULLs                               1.02     28.2±0.32µs        ? ?/sec    1.00     27.8±0.41µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, mandatory, no NULLs                                     1.10     91.3±1.25µs        ? ?/sec    1.00     83.2±1.50µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, half NULLs                                    1.03    158.5±2.21µs        ? ?/sec    1.00    153.3±1.11µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, no NULLs                                      1.10     96.2±1.47µs        ? ?/sec    1.00     87.8±0.43µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, mandatory, no NULLs                                          1.00     18.4±0.59µs        ? ?/sec    1.01     18.6±0.98µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, half NULLs                                         1.01    116.5±0.64µs        ? ?/sec    1.00    115.9±0.97µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, no NULLs                                           1.00     22.9±0.84µs        ? ?/sec    1.01     23.1±0.64µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, mandatory, no NULLs                                     1.00     80.6±0.37µs        ? ?/sec    1.00     80.8±0.64µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, half NULLs                                    1.01    103.0±1.12µs        ? ?/sec    1.00    102.3±1.11µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, no NULLs                                      1.01     83.9±1.45µs        ? ?/sec    1.00     83.4±0.47µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, mandatory, no NULLs                                          1.01    108.0±0.76µs        ? ?/sec    1.00    106.8±0.37µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, half NULLs                                         1.00    166.8±1.11µs        ? ?/sec    1.01    167.8±2.06µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, no NULLs                                           1.00    110.2±0.78µs        ? ?/sec    1.00    109.9±0.69µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, mandatory, no NULLs                              1.00    145.6±0.44µs        ? ?/sec    1.00    146.3±0.46µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, half NULLs                             1.00    189.3±2.74µs        ? ?/sec    1.00    189.8±0.72µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, no NULLs                               1.00    150.2±0.57µs        ? ?/sec    1.01    151.4±1.67µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, mandatory, no NULLs                                     1.00     87.8±1.87µs        ? ?/sec    1.11     97.7±0.78µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, half NULLs                                    1.00    159.3±2.83µs        ? ?/sec    1.03    163.8±0.60µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, no NULLs                                      1.00     92.8±1.18µs        ? ?/sec    1.10    102.5±0.83µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, mandatory, no NULLs                                          1.00     40.8±1.56µs        ? ?/sec    1.06     43.3±1.72µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, half NULLs                                         1.01    134.2±1.46µs        ? ?/sec    1.00    133.3±1.29µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, no NULLs                                           1.00     44.9±1.26µs        ? ?/sec    1.09     48.9±1.70µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, mandatory, no NULLs                                      1.00     88.8±1.45µs        ? ?/sec    1.02     90.2±1.53µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, half NULLs                                     1.00    105.8±0.43µs        ? ?/sec    1.00    106.2±1.50µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, no NULLs                                       1.00     91.2±0.46µs        ? ?/sec    1.02     93.0±1.83µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, mandatory, no NULLs                                           1.00    118.6±4.35µs        ? ?/sec    1.01    120.3±0.69µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, half NULLs                                          1.00    174.6±0.69µs        ? ?/sec    1.00    175.1±1.89µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, no NULLs                                            1.00    122.3±0.59µs        ? ?/sec    1.02    125.2±2.96µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, mandatory, no NULLs                               1.01     34.8±0.46µs        ? ?/sec    1.00     34.6±0.14µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, half NULLs                              1.00    130.7±1.01µs        ? ?/sec    1.00    130.5±2.23µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, no NULLs                                1.00     39.0±0.26µs        ? ?/sec    1.00     38.8±0.23µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, mandatory, no NULLs                                      1.09    102.2±0.40µs        ? ?/sec    1.00     93.8±1.30µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, half NULLs                                     1.04    170.3±2.22µs        ? ?/sec    1.00    164.3±1.35µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, no NULLs                                       1.08    107.5±2.07µs        ? ?/sec    1.00     99.1±1.05µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, mandatory, no NULLs                                           1.00     28.7±0.58µs        ? ?/sec    1.00     28.7±0.11µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, half NULLs                                          1.00    127.5±0.54µs        ? ?/sec    1.00    126.9±1.05µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, no NULLs                                            1.00     33.2±0.11µs        ? ?/sec    1.01     33.5±0.16µs        ? ?/sec

alamb-ghbot · 2026-01-15T14:53:46Z

🤖 ./gh_compare_arrow.sh gh_compare_arrow.sh Running
Linux aal-dev 6.14.0-1018-gcp #19~24.04.1-Ubuntu SMP Wed Sep 24 23:23:09 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Comparing alamb/less_parquet_view_allocations (9e4bbb8) to d81d6c3 diff
BENCH_NAME=arrow_reader
BENCH_COMMAND=cargo bench --features=arrow,async,test_common,experimental --bench arrow_reader
BENCH_FILTER=
BENCH_BRANCH_NAME=alamb_less_parquet_view_allocations
Results will be posted here when complete

alamb-ghbot · 2026-01-15T16:09:01Z

🤖: Benchmark completed

Details

group                                                                                                      alamb_less_parquet_view_allocations    main
-----                                                                                                      -----------------------------------    ----
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                           1.06   1069.2±7.88µs        ? ?/sec    1.00   1006.0±4.01µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                          1.00  1183.3±15.68µs        ? ?/sec    1.07   1268.5±6.88µs        ? ?/sec
arrow_array_reader/BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                            1.06  1077.3±11.36µs        ? ?/sec    1.00  1013.6±10.88µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, mandatory, no NULLs                                     1.00    478.6±4.31µs        ? ?/sec    1.08    515.3±4.11µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, half NULLs                                    1.00    662.4±8.18µs        ? ?/sec    1.05    698.7±3.75µs        ? ?/sec
arrow_array_reader/BinaryArray/dictionary encoded, optional, no NULLs                                      1.00    494.8±5.18µs        ? ?/sec    1.03    509.8±5.10µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, mandatory, no NULLs                                          1.01   546.9±10.67µs        ? ?/sec    1.00    543.4±5.55µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, half NULLs                                         1.00    733.0±5.70µs        ? ?/sec    1.02    747.2±5.61µs        ? ?/sec
arrow_array_reader/BinaryArray/plain encoded, optional, no NULLs                                           1.00    556.6±3.09µs        ? ?/sec    1.00    558.7±8.08µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    272.7±4.63µs        ? ?/sec    1.00    272.0±5.67µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs                                1.00    238.5±5.52µs        ? ?/sec    1.00    237.8±3.59µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, no NULLs                                  1.00    277.5±3.48µs        ? ?/sec    1.04   287.4±23.05µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs                                      1.00    348.1±3.33µs        ? ?/sec    1.08   377.5±10.42µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string                        1.00    322.9±1.57µs        ? ?/sec    1.08    348.2±8.59µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs                                     1.00    289.8±1.56µs        ? ?/sec    1.00    289.4±2.06µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs                                       1.00    357.6±4.66µs        ? ?/sec    1.07    382.9±6.66µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs     1.08  1009.7±13.57µs        ? ?/sec    1.00   935.3±50.00µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, half NULLs    1.10    870.3±4.53µs        ? ?/sec    1.00   791.8±10.07µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/byte_stream_split encoded, optional, no NULLs      1.09  1022.8±28.48µs        ? ?/sec    1.00    935.7±7.80µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, mandatory, no NULLs                 1.08    326.4±4.36µs        ? ?/sec    1.00    301.2±5.42µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, half NULLs                1.14    519.2±2.91µs        ? ?/sec    1.00    457.3±6.90µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Decimal128Array/plain encoded, optional, no NULLs                  1.08   335.0±10.95µs        ? ?/sec    1.00    310.6±4.20µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, mandatory, no NULLs        1.00    161.0±1.39µs        ? ?/sec    1.24   198.9±17.35µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, half NULLs       1.00    278.0±1.47µs        ? ?/sec    1.22    338.5±5.97µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/byte_stream_split encoded, optional, no NULLs         1.00    167.5±0.74µs        ? ?/sec    1.21    201.8±2.65µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, mandatory, no NULLs                    1.00     75.9±0.93µs        ? ?/sec    1.57    118.8±1.92µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, half NULLs                   1.00    234.1±1.32µs        ? ?/sec    1.28    298.5±3.75µs        ? ?/sec
arrow_array_reader/FIXED_LEN_BYTE_ARRAY/Float16Array/plain encoded, optional, no NULLs                     1.00     82.2±0.73µs        ? ?/sec    1.51    124.0±0.55µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, mandatory, no NULLs                    1.07    737.5±9.94µs        ? ?/sec    1.00    687.4±3.43µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, half NULLs                   1.10    588.8±5.46µs        ? ?/sec    1.00    534.3±5.57µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/byte_stream_split encoded, optional, no NULLs                     1.07   744.2±14.64µs        ? ?/sec    1.00    694.7±7.28µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, mandatory, no NULLs                                1.01     69.8±2.94µs        ? ?/sec    1.00     69.2±2.21µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, half NULLs                               1.15    257.5±4.05µs        ? ?/sec    1.00    224.8±2.04µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(16)/plain encoded, optional, no NULLs                                 1.00     77.1±3.32µs        ? ?/sec    1.02     78.8±2.76µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, mandatory, no NULLs                     1.09     94.4±0.44µs        ? ?/sec    1.00     86.6±1.47µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, half NULLs                    1.00    208.8±7.04µs        ? ?/sec    1.09    227.0±3.38µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/byte_stream_split encoded, optional, no NULLs                      1.08     99.1±0.76µs        ? ?/sec    1.00     91.7±0.76µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, mandatory, no NULLs                                 1.00      9.2±0.17µs        ? ?/sec    1.02      9.3±0.13µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, half NULLs                                1.00    164.4±1.31µs        ? ?/sec    1.14    186.8±0.62µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(2)/plain encoded, optional, no NULLs                                  1.01     14.2±0.12µs        ? ?/sec    1.00     14.0±0.19µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, mandatory, no NULLs                     1.09    184.6±0.93µs        ? ?/sec    1.00    169.6±0.42µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, half NULLs                    1.00    330.6±6.64µs        ? ?/sec    1.02   335.7±20.43µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/byte_stream_split encoded, optional, no NULLs                      1.08    190.1±3.59µs        ? ?/sec    1.00    175.5±2.06µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, mandatory, no NULLs                                 1.00     14.7±0.61µs        ? ?/sec    1.02     15.0±0.59µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, half NULLs                                1.00   248.6±13.01µs        ? ?/sec    1.03    255.4±2.30µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(4)/plain encoded, optional, no NULLs                                  1.03     20.3±0.81µs        ? ?/sec    1.00     19.8±0.42µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, mandatory, no NULLs                     1.08    366.2±1.63µs        ? ?/sec    1.00    340.3±3.11µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, half NULLs                    1.14    389.4±2.44µs        ? ?/sec    1.00    342.3±3.84µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/byte_stream_split encoded, optional, no NULLs                      1.08    373.4±7.60µs        ? ?/sec    1.00    346.2±1.59µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, mandatory, no NULLs                                 1.00     27.0±0.43µs        ? ?/sec    1.01     27.3±0.68µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, half NULLs                                1.18    219.1±7.32µs        ? ?/sec    1.00    185.6±1.09µs        ? ?/sec
arrow_array_reader/FixedLenByteArray(8)/plain encoded, optional, no NULLs                                  1.01     34.1±0.63µs        ? ?/sec    1.00     33.9±0.40µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.00    109.8±1.46µs        ? ?/sec    1.01    110.9±0.97µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    129.4±0.90µs        ? ?/sec    1.00    129.6±3.01µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    114.2±7.96µs        ? ?/sec    1.00    113.9±3.05µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, mandatory, no NULLs                                1.00    160.3±2.63µs        ? ?/sec    1.00    161.0±1.25µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, half NULLs                               1.00    221.8±2.92µs        ? ?/sec    1.00    221.1±1.98µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/binary packed, optional, no NULLs                                 1.01    166.9±6.98µs        ? ?/sec    1.00    166.0±0.36µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.01     76.1±0.61µs        ? ?/sec    1.00     75.0±1.07µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.01    175.8±1.57µs        ? ?/sec    1.00    174.8±1.33µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00     80.8±0.67µs        ? ?/sec    1.01     81.5±1.60µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.07    143.5±2.63µs        ? ?/sec    1.00    134.6±0.56µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, half NULLs                          1.04   218.2±19.18µs        ? ?/sec    1.00    208.8±3.02µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/dictionary encoded, optional, no NULLs                            1.06    148.8±0.88µs        ? ?/sec    1.00    140.7±1.08µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, mandatory, no NULLs                                1.00     71.5±0.93µs        ? ?/sec    1.00     71.6±0.72µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, half NULLs                               1.00    173.1±1.36µs        ? ?/sec    1.00    172.6±2.40µs        ? ?/sec
arrow_array_reader/INT32/Decimal128Array/plain encoded, optional, no NULLs                                 1.00     76.4±1.14µs        ? ?/sec    1.03     78.5±0.92µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, mandatory, no NULLs                           1.00    108.2±0.69µs        ? ?/sec    1.01    109.8±0.36µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, half NULLs                          1.00    131.0±2.13µs        ? ?/sec    1.00    131.0±1.18µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed skip, optional, no NULLs                            1.00    111.1±1.68µs        ? ?/sec    1.00    111.2±0.65µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, mandatory, no NULLs                                1.00    162.7±0.94µs        ? ?/sec    1.00    162.9±3.62µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, half NULLs                               1.03    232.8±1.38µs        ? ?/sec    1.00    224.9±3.81µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/binary packed, optional, no NULLs                                 1.02    169.5±6.78µs        ? ?/sec    1.00    165.5±0.91µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, mandatory, no NULLs                    1.00    200.1±0.65µs        ? ?/sec    1.00    199.2±1.41µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, half NULLs                   1.00    243.3±2.72µs        ? ?/sec    1.03    249.6±2.42µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/byte_stream_split encoded, optional, no NULLs                     1.00    206.2±0.91µs        ? ?/sec    1.00    205.5±0.83µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, mandatory, no NULLs                           1.00    140.4±0.94µs        ? ?/sec    1.08    151.3±2.70µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, half NULLs                          1.00    215.7±0.68µs        ? ?/sec    1.03    222.4±3.33µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/dictionary encoded, optional, no NULLs                            1.00    146.0±1.12µs        ? ?/sec    1.07    156.8±1.88µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, mandatory, no NULLs                                1.00    102.7±1.50µs        ? ?/sec    1.00    102.5±1.44µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, half NULLs                               1.00    195.2±0.95µs        ? ?/sec    1.00    195.9±3.13µs        ? ?/sec
arrow_array_reader/INT64/Decimal128Array/plain encoded, optional, no NULLs                                 1.00    110.1±2.51µs        ? ?/sec    1.02    112.6±0.44µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, mandatory, no NULLs                                      1.01     78.3±1.22µs        ? ?/sec    1.00     77.3±0.36µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, half NULLs                                     1.00    101.5±0.63µs        ? ?/sec    1.00    101.5±0.63µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed skip, optional, no NULLs                                       1.00     80.0±1.11µs        ? ?/sec    1.00     79.9±0.34µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, mandatory, no NULLs                                           1.01    108.5±2.59µs        ? ?/sec    1.00    107.4±1.37µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, half NULLs                                          1.00    171.6±2.83µs        ? ?/sec    1.00    171.4±1.41µs        ? ?/sec
arrow_array_reader/Int16Array/binary packed, optional, no NULLs                                            1.01    112.3±2.11µs        ? ?/sec    1.00    111.7±1.20µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, mandatory, no NULLs                               1.05     42.8±0.32µs        ? ?/sec    1.00     40.9±0.25µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, half NULLs                              1.01    139.3±4.34µs        ? ?/sec    1.00    137.3±2.45µs        ? ?/sec
arrow_array_reader/Int16Array/byte_stream_split encoded, optional, no NULLs                                1.03     46.7±0.28µs        ? ?/sec    1.00     45.2±0.28µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, mandatory, no NULLs                                      1.08    109.9±0.58µs        ? ?/sec    1.00    101.3±1.43µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, half NULLs                                     1.02    176.8±5.82µs        ? ?/sec    1.00    172.7±4.62µs        ? ?/sec
arrow_array_reader/Int16Array/dictionary encoded, optional, no NULLs                                       1.07    114.5±1.97µs        ? ?/sec    1.00    107.0±3.66µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, mandatory, no NULLs                                           1.00     36.6±0.09µs        ? ?/sec    1.01     36.9±0.19µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, half NULLs                                          1.00    135.4±0.48µs        ? ?/sec    1.00    134.8±1.57µs        ? ?/sec
arrow_array_reader/Int16Array/plain encoded, optional, no NULLs                                            1.00     41.0±0.34µs        ? ?/sec    1.01     41.3±0.34µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, mandatory, no NULLs                                      1.00     82.4±1.43µs        ? ?/sec    1.02     84.3±0.65µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, half NULLs                                     1.00    100.0±1.39µs        ? ?/sec    1.01    100.9±0.64µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed skip, optional, no NULLs                                       1.00     85.3±1.62µs        ? ?/sec    1.03     87.5±4.16µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, mandatory, no NULLs                                           1.00    106.4±2.38µs        ? ?/sec    1.02    108.6±0.42µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, half NULLs                                          1.00    162.4±0.87µs        ? ?/sec    1.01    164.1±1.96µs        ? ?/sec
arrow_array_reader/Int32Array/binary packed, optional, no NULLs                                            1.00    110.9±2.14µs        ? ?/sec    1.02    113.4±1.88µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, mandatory, no NULLs                               1.00     23.4±0.19µs        ? ?/sec    1.00     23.5±0.95µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, half NULLs                              1.00    117.8±0.50µs        ? ?/sec    1.00    118.1±1.78µs        ? ?/sec
arrow_array_reader/Int32Array/byte_stream_split encoded, optional, no NULLs                                1.00     27.6±0.18µs        ? ?/sec    1.02     28.1±1.03µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, mandatory, no NULLs                                      1.10     91.4±0.52µs        ? ?/sec    1.00     82.7±0.62µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, half NULLs                                     1.02    156.1±0.77µs        ? ?/sec    1.00    153.6±1.53µs        ? ?/sec
arrow_array_reader/Int32Array/dictionary encoded, optional, no NULLs                                       1.09     96.3±1.31µs        ? ?/sec    1.00     88.1±1.87µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, mandatory, no NULLs                                           1.00     15.2±0.76µs        ? ?/sec    1.03     15.7±0.23µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, half NULLs                                          1.00    116.0±1.48µs        ? ?/sec    1.00    116.3±0.88µs        ? ?/sec
arrow_array_reader/Int32Array/plain encoded, optional, no NULLs                                            1.00     21.1±0.42µs        ? ?/sec    1.02     21.6±0.19µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, mandatory, no NULLs                                      1.00     80.9±0.59µs        ? ?/sec    1.00     80.6±0.68µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, half NULLs                                     1.00    101.6±0.41µs        ? ?/sec    1.01    102.9±3.21µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed skip, optional, no NULLs                                       1.00     83.7±0.32µs        ? ?/sec    1.00     83.4±0.91µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, mandatory, no NULLs                                           1.00    107.9±1.69µs        ? ?/sec    1.02    109.6±5.21µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, half NULLs                                          1.00    166.8±5.88µs        ? ?/sec    1.00    166.5±3.23µs        ? ?/sec
arrow_array_reader/Int64Array/binary packed, optional, no NULLs                                            1.00    110.9±2.58µs        ? ?/sec    1.01    111.5±1.45µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, mandatory, no NULLs                               1.00    145.8±0.65µs        ? ?/sec    1.00    146.1±1.10µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, half NULLs                              1.00    188.6±0.87µs        ? ?/sec    1.01    189.8±3.90µs        ? ?/sec
arrow_array_reader/Int64Array/byte_stream_split encoded, optional, no NULLs                                1.00    151.1±1.22µs        ? ?/sec    1.00    151.5±1.62µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, mandatory, no NULLs                                      1.00     88.0±3.07µs        ? ?/sec    1.11     97.9±1.22µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, half NULLs                                     1.00    156.9±1.10µs        ? ?/sec    1.05    165.1±8.49µs        ? ?/sec
arrow_array_reader/Int64Array/dictionary encoded, optional, no NULLs                                       1.00     91.8±1.38µs        ? ?/sec    1.12    102.7±0.86µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, mandatory, no NULLs                                           1.00     43.8±1.97µs        ? ?/sec    1.06     46.6±2.49µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, half NULLs                                          1.00    132.7±1.96µs        ? ?/sec    1.00    132.9±1.46µs        ? ?/sec
arrow_array_reader/Int64Array/plain encoded, optional, no NULLs                                            1.08     52.0±2.72µs        ? ?/sec    1.00     48.3±1.66µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, mandatory, no NULLs                                       1.00     82.2±1.81µs        ? ?/sec    1.00     82.0±2.28µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, half NULLs                                      1.01    103.3±4.51µs        ? ?/sec    1.00    102.5±0.68µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed skip, optional, no NULLs                                        1.00     85.4±1.99µs        ? ?/sec    1.00     85.1±3.04µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, mandatory, no NULLs                                            1.01    110.5±3.39µs        ? ?/sec    1.00    109.1±0.59µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, half NULLs                                           1.00    170.0±1.89µs        ? ?/sec    1.00    169.6±0.60µs        ? ?/sec
arrow_array_reader/Int8Array/binary packed, optional, no NULLs                                             1.01    115.1±3.24µs        ? ?/sec    1.00    114.1±1.19µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, mandatory, no NULLs                                1.00     34.8±0.23µs        ? ?/sec    1.00     34.9±0.17µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, half NULLs                               1.01    130.8±0.45µs        ? ?/sec    1.00    129.4±0.49µs        ? ?/sec
arrow_array_reader/Int8Array/byte_stream_split encoded, optional, no NULLs                                 1.00     39.0±0.17µs        ? ?/sec    1.00     39.1±0.26µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, mandatory, no NULLs                                       1.09    102.4±0.62µs        ? ?/sec    1.00     93.7±0.44µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, half NULLs                                      1.03    169.8±6.73µs        ? ?/sec    1.00    164.5±2.34µs        ? ?/sec
arrow_array_reader/Int8Array/dictionary encoded, optional, no NULLs                                        1.09    107.6±3.39µs        ? ?/sec    1.00     99.1±1.68µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, mandatory, no NULLs                                            1.00     28.7±0.44µs        ? ?/sec    1.00     28.6±0.20µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, half NULLs                                           1.01    128.7±0.60µs        ? ?/sec    1.00    127.6±2.20µs        ? ?/sec
arrow_array_reader/Int8Array/plain encoded, optional, no NULLs                                             1.01     33.6±0.39µs        ? ?/sec    1.00     33.4±0.36µs        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings half NULLs                                     1.04      7.7±0.16ms        ? ?/sec    1.00      7.4±0.10ms        ? ?/sec
arrow_array_reader/ListArray/plain encoded optional strings no NULLs                                       1.05     14.7±0.27ms        ? ?/sec    1.00     14.0±0.38ms        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, mandatory, no NULLs                                     1.00    489.8±9.14µs        ? ?/sec    1.05   516.3±13.35µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, half NULLs                                    1.00    648.7±6.00µs        ? ?/sec    1.07    696.5±6.10µs        ? ?/sec
arrow_array_reader/StringArray/dictionary encoded, optional, no NULLs                                      1.00   485.9±18.88µs        ? ?/sec    1.05    509.9±3.60µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, mandatory, no NULLs                                          1.00    622.4±5.59µs        ? ?/sec    1.02    636.9±6.66µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, half NULLs                                         1.00    774.1±9.27µs        ? ?/sec    1.03    797.4±6.19µs        ? ?/sec
arrow_array_reader/StringArray/plain encoded, optional, no NULLs                                           1.00    635.3±6.70µs        ? ?/sec    1.03   652.7±10.86µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, mandatory, no NULLs                                1.00    331.9±4.14µs        ? ?/sec    1.01    333.7±7.28µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, half NULLs                               1.09    410.1±6.05µs        ? ?/sec    1.00    375.7±2.04µs        ? ?/sec
arrow_array_reader/StringDictionary/dictionary encoded, optional, no NULLs                                 1.00    338.6±5.72µs        ? ?/sec    1.01    342.2±7.91µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    272.5±6.34µs        ? ?/sec    1.05    284.9±7.24µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, half NULLs                                1.03    238.6±0.87µs        ? ?/sec    1.00    231.3±2.91µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, no NULLs                                  1.00    276.5±5.66µs        ? ?/sec    1.01    278.9±3.64µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, mandatory, no NULLs                                      1.00    497.1±7.36µs        ? ?/sec    1.01    504.2±2.37µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, half NULLs                                     1.01    358.0±2.30µs        ? ?/sec    1.00    355.0±9.66µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, no NULLs                                       1.00    505.7±9.94µs        ? ?/sec    1.02    517.9±8.35µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, mandatory, no NULLs                                     1.00     93.7±1.76µs        ? ?/sec    1.00     93.5±1.03µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, half NULLs                                    1.00    111.3±2.26µs        ? ?/sec    1.00    110.8±0.87µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed skip, optional, no NULLs                                      1.00     96.5±1.51µs        ? ?/sec    1.00     96.2±1.32µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, mandatory, no NULLs                                          1.00    128.2±2.52µs        ? ?/sec    1.00    127.7±1.32µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, half NULLs                                         1.00    184.7±2.56µs        ? ?/sec    1.00    184.5±2.37µs        ? ?/sec
arrow_array_reader/UInt16Array/binary packed, optional, no NULLs                                           1.00    133.0±2.58µs        ? ?/sec    1.00    132.5±3.41µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, mandatory, no NULLs                              1.01     43.1±0.23µs        ? ?/sec    1.00     42.7±0.35µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, half NULLs                             1.00    137.4±2.59µs        ? ?/sec    1.00    137.5±1.35µs        ? ?/sec
arrow_array_reader/UInt16Array/byte_stream_split encoded, optional, no NULLs                               1.01     47.2±0.32µs        ? ?/sec    1.00     46.8±0.61µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, mandatory, no NULLs                                     1.09    110.8±3.00µs        ? ?/sec    1.00    101.4±0.52µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, half NULLs                                    1.02    176.0±1.41µs        ? ?/sec    1.00    172.3±0.79µs        ? ?/sec
arrow_array_reader/UInt16Array/dictionary encoded, optional, no NULLs                                      1.07    115.1±1.74µs        ? ?/sec    1.00    107.2±0.71µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, mandatory, no NULLs                                          1.00     36.4±0.11µs        ? ?/sec    1.01     36.8±0.26µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, half NULLs                                         1.00    135.3±0.71µs        ? ?/sec    1.00    135.0±2.27µs        ? ?/sec
arrow_array_reader/UInt16Array/plain encoded, optional, no NULLs                                           1.00     41.3±0.23µs        ? ?/sec    1.00     41.4±0.35µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, mandatory, no NULLs                                     1.00     83.2±1.33µs        ? ?/sec    1.01     84.4±1.57µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, half NULLs                                    1.00    100.8±2.66µs        ? ?/sec    1.00    101.2±0.71µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed skip, optional, no NULLs                                      1.00     85.9±1.34µs        ? ?/sec    1.02     87.5±0.64µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, mandatory, no NULLs                                          1.00    108.4±3.18µs        ? ?/sec    1.01    109.1±1.97µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, half NULLs                                         1.00    163.4±1.43µs        ? ?/sec    1.01    164.4±0.78µs        ? ?/sec
arrow_array_reader/UInt32Array/binary packed, optional, no NULLs                                           1.00    113.0±2.52µs        ? ?/sec    1.00    113.2±0.75µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, mandatory, no NULLs                              1.00     23.8±0.26µs        ? ?/sec    1.01     23.9±0.33µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, half NULLs                             1.00    119.8±2.73µs        ? ?/sec    1.00    119.4±1.38µs        ? ?/sec
arrow_array_reader/UInt32Array/byte_stream_split encoded, optional, no NULLs                               1.00     26.7±0.36µs        ? ?/sec    1.05     28.1±0.83µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, mandatory, no NULLs                                     1.10     91.3±1.99µs        ? ?/sec    1.00     83.2±2.56µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, half NULLs                                    1.03    156.9±4.21µs        ? ?/sec    1.00    152.7±0.92µs        ? ?/sec
arrow_array_reader/UInt32Array/dictionary encoded, optional, no NULLs                                      1.09     96.0±2.60µs        ? ?/sec    1.00     87.9±0.90µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, mandatory, no NULLs                                          1.01     18.7±0.55µs        ? ?/sec    1.00     18.4±0.64µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, half NULLs                                         1.00    116.5±0.45µs        ? ?/sec    1.00    116.1±1.20µs        ? ?/sec
arrow_array_reader/UInt32Array/plain encoded, optional, no NULLs                                           1.00     22.7±0.51µs        ? ?/sec    1.00     22.6±0.27µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, mandatory, no NULLs                                     1.02     82.3±1.22µs        ? ?/sec    1.00     80.9±0.94µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, half NULLs                                    1.00    101.4±1.65µs        ? ?/sec    1.01    102.6±5.10µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed skip, optional, no NULLs                                      1.00     83.6±1.44µs        ? ?/sec    1.00     83.3±0.75µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, mandatory, no NULLs                                          1.00    108.1±1.03µs        ? ?/sec    1.01    109.1±1.30µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, half NULLs                                         1.00    165.9±2.34µs        ? ?/sec    1.04    172.2±3.63µs        ? ?/sec
arrow_array_reader/UInt64Array/binary packed, optional, no NULLs                                           1.00    111.1±0.76µs        ? ?/sec    1.00    110.7±0.55µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, mandatory, no NULLs                              1.00    146.2±0.72µs        ? ?/sec    1.00    146.1±0.58µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, half NULLs                             1.00    189.3±1.54µs        ? ?/sec    1.00    190.0±2.48µs        ? ?/sec
arrow_array_reader/UInt64Array/byte_stream_split encoded, optional, no NULLs                               1.00    151.0±0.69µs        ? ?/sec    1.00    151.4±0.72µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, mandatory, no NULLs                                     1.00     87.8±0.92µs        ? ?/sec    1.11     97.5±1.51µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, half NULLs                                    1.00    157.5±4.27µs        ? ?/sec    1.04    164.4±1.33µs        ? ?/sec
arrow_array_reader/UInt64Array/dictionary encoded, optional, no NULLs                                      1.00     92.8±3.84µs        ? ?/sec    1.12    103.8±6.61µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, mandatory, no NULLs                                          1.00     43.2±2.84µs        ? ?/sec    1.03     44.5±2.28µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, half NULLs                                         1.00    133.0±2.89µs        ? ?/sec    1.01    133.9±2.31µs        ? ?/sec
arrow_array_reader/UInt64Array/plain encoded, optional, no NULLs                                           1.00     48.3±1.32µs        ? ?/sec    1.04     50.1±1.33µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, mandatory, no NULLs                                      1.00     88.8±0.89µs        ? ?/sec    1.01     89.9±0.68µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, half NULLs                                     1.00    105.9±0.66µs        ? ?/sec    1.00    106.0±1.09µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed skip, optional, no NULLs                                       1.01     93.5±1.11µs        ? ?/sec    1.00     92.5±0.68µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, mandatory, no NULLs                                           1.00    118.6±2.84µs        ? ?/sec    1.01    120.2±2.00µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, half NULLs                                          1.00    174.9±2.90µs        ? ?/sec    1.00    175.2±3.89µs        ? ?/sec
arrow_array_reader/UInt8Array/binary packed, optional, no NULLs                                            1.00    122.9±0.67µs        ? ?/sec    1.01    124.5±0.52µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, mandatory, no NULLs                               1.01     34.8±0.47µs        ? ?/sec    1.00     34.6±0.32µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, half NULLs                              1.01    130.8±2.04µs        ? ?/sec    1.00    129.7±2.10µs        ? ?/sec
arrow_array_reader/UInt8Array/byte_stream_split encoded, optional, no NULLs                                1.01     39.2±0.49µs        ? ?/sec    1.00     38.9±0.59µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, mandatory, no NULLs                                      1.09    102.5±0.77µs        ? ?/sec    1.00     93.7±1.09µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, half NULLs                                     1.02    168.2±2.04µs        ? ?/sec    1.00    164.8±4.25µs        ? ?/sec
arrow_array_reader/UInt8Array/dictionary encoded, optional, no NULLs                                       1.08    107.2±1.01µs        ? ?/sec    1.00     98.9±0.64µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, mandatory, no NULLs                                           1.00     28.7±0.18µs        ? ?/sec    1.00     28.6±0.28µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, half NULLs                                          1.01    128.1±1.76µs        ? ?/sec    1.00    127.0±2.10µs        ? ?/sec
arrow_array_reader/UInt8Array/plain encoded, optional, no NULLs                                            1.00     33.4±0.26µs        ? ?/sec    1.00     33.3±0.08µs        ? ?/sec

alamb · 2026-01-16T10:46:46Z

The benchmakrs now show a small but repeatable improvement for the array types. I am not sure how real it is but I am now convinced this PR is an improvement

group                                                                                                      alamb_less_parquet_view_allocations    main
-----                                                                                                      -----------------------------------    ----
...
arrow_array_reader/BinaryViewArray/dictionary encoded, mandatory, no NULLs                                 1.00    270.3±4.43µs        ? ?/sec    1.04    280.3±4.12µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs                                1.04    240.2±2.87µs        ? ?/sec    1.00    231.5±3.62µs        ? ?/sec
arrow_array_reader/BinaryViewArray/dictionary encoded, optional, no NULLs                                  1.00    274.9±4.35µs        ? ?/sec    1.01    278.2±3.97µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs                                      1.00   352.1±10.76µs        ? ?/sec    1.07    376.8±5.89µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, mandatory, no NULLs, short string                        1.00    324.5±3.75µs        ? ?/sec    1.08    350.0±3.34µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, half NULLs                                     1.00    290.8±3.70µs        ? ?/sec    1.03    298.8±2.92µs        ? ?/sec
arrow_array_reader/BinaryViewArray/plain encoded, optional, no NULLs                                       1.00    360.0±3.41µs        ? ?/sec    1.06    382.9±1.37µs        ? ?/sec
...
arrow_array_reader/StringViewArray/dictionary encoded, mandatory, no NULLs                                 1.01    274.2±2.40µs        ? ?/sec    1.00    271.2±4.02µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, half NULLs                                1.05    240.4±0.94µs        ? ?/sec    1.00    230.1±1.69µs        ? ?/sec
arrow_array_reader/StringViewArray/dictionary encoded, optional, no NULLs                                  1.00    277.6±2.41µs        ? ?/sec    1.00    276.7±3.68µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, mandatory, no NULLs                                      1.01    506.5±6.99µs        ? ?/sec    1.00    503.3±5.39µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, half NULLs                                     1.04    364.8±9.48µs        ? ?/sec    1.00    351.6±3.12µs        ? ?/sec
arrow_array_reader/StringViewArray/plain encoded, optional, no NULLs                                       1.01   519.1±36.53µs        ? ?/sec    1.00   512.2±11.52µs        ? ?/sec
...

jhorstmann · 2026-01-16T15:39:18Z

I ran the benchmark for "arrow_array_reader/BinaryViewArray/dictionary encoded, optional, half NULLs" locally with samply and can confirm that the code in this PR is an improvement. The difference was small, 0.5% for ViewBuffer::into_array on main vs 0.2% on this branch, so it is likely that some benchmark runs will show random fluctuation in either direction.

alamb · 2026-01-17T16:20:07Z

Thank you for double checking @jhorstmann and for the reviews @jhorstmann and @scovich

[Parquet] perf: Create Utf8/BinaryViewArray directly rather than via …

2ed62c2

…ArrayData

github-actions bot added the parquet Changes to the parquet crate label Jan 9, 2026

alamb commented Jan 9, 2026

View reviewed changes