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bench: add benchmark for converting list and sliced list to row format #8008

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Merged
alamb merged 1 commit into from
Jul 28, 2025
Merged

bench: add benchmark for converting list and sliced list to row format #8008

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84 changes: 84 additions & 0 deletions arrow/benches/row_format.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,10 @@ use arrow::util::bench_util::{
create_boolean_array, create_dict_from_values, create_primitive_array,
create_string_array_with_len, create_string_dict_array, create_string_view_array_with_len,
};
use arrow::util::data_gen::create_random_array;
use arrow_array::types::Int32Type;
use arrow_array::Array;
use arrow_schema::{DataType, Field};
use criterion::Criterion;
use std::{hint, sync::Arc};

Expand Down Expand Up @@ -172,6 +174,88 @@ fn row_bench(c: &mut Criterion) {
];
do_bench(c, "4096 4096 string_dictionary(20, 0.5), string_dictionary(30, 0), string_dictionary(100, 0), i64(0)", cols);

// List

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::List(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
4096,
0.,
1.0,
)
.unwrap()];
do_bench(c, "4096 list(0) of u64(0)", cols);

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::LargeList(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
4096,
0.,
1.0,
)
.unwrap()];
do_bench(c, "4096 large_list(0) of u64(0)", cols);

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::List(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
10,
0.,
1.0,
)
.unwrap()];
do_bench(c, "10 list(0) of u64(0)", cols);

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::LargeList(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
10,
0.,
1.0,
)
.unwrap()];
do_bench(c, "10 large_list(0) of u64(0)", cols);

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::List(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
4096,
0.,
1.0,
)
.unwrap()
.slice(10, 20)];
do_bench(c, "4096 list(0) sliced to 10 of u64(0)", cols);

let cols = vec![create_random_array(
&Field::new(
"list",
DataType::LargeList(Arc::new(Field::new_list_field(DataType::UInt64, false))),
false,
),
4096,
0.,
1.0,
)
.unwrap()
.slice(10, 20)];
do_bench(c, "4096 large_list(0) sliced to 10 of u64(0)", cols);

bench_iter(c);
}

Expand Down
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