[Perf] Changes at 2/20/2022 5:50:14 AM

[performanceautofiler]

Run Information

Architecture	x64
OS	alpine 3.12
Baseline	79d478ae01d9a3e7548bf41a76d047158ed8a62b
Compare	4017327955f1d8ddc43980eb1848c52fbb131dfc
Diff	Diff

Improvements in System.Collections.IterateFor<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
ReadOnlySpan - Duration of single invocation	229.10 ns	174.56 ns	0.76	0.30	False
Span - Duration of single invocation	232.55 ns	182.75 ns	0.79	0.29	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateFor<String>*'

Payloads

Baseline
Compare

Histogram

System.Collections.IterateFor<String>.ReadOnlySpan(Size: 512)

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 174.555310964388 < 217.89181081083618.
IsChangePoint: Marked as a change because one of 12/26/2021 4:30:45 AM, 1/10/2022 2:01:44 PM, 2/1/2022 1:17:39 AM, 2/3/2022 4:53:52 PM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsImprovementStdDev: Marked as improvement because 23.00616787264254 (T) = (0 -174.71848962664944) / Math.Sqrt((685.561109890697 / (299)) + (0.013032152221055264 / (7))) is greater than 1.9677981407170237 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (7) - 2, .975) and 0.16629575708747368 = (209.56891021242075 - 174.71848962664944) / 209.56891021242075 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.IterateFor&lt;String&gt;.Span(Size: 512)

```log

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 182.75086117658614 < 221.03715320869813.
IsChangePoint: Marked as a change because one of 12/26/2021 10:58:11 AM, 1/15/2022 2:15:26 AM, 2/1/2022 8:13:55 AM, 2/3/2022 4:53:52 PM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsImprovementStdDev: Marked as improvement because 23.270115305611967 (T) = (0 -181.3560467072523) / Math.Sqrt((610.8485475757001 / (299)) + (0.577184849743147 / (7))) is greater than 1.9677981407170237 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (7) - 2, .975) and 0.15758523756744988 = (215.28118308797204 - 181.3560467072523) / 215.28118308797204 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

### Run Information

Architecture	x64
OS	alpine 3.12
Baseline	79d478ae01d9a3e7548bf41a76d047158ed8a62b
Compare	4017327955f1d8ddc43980eb1848c52fbb131dfc
Diff	Diff

Improvements in System.Collections.Sort<IntStruct>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
List - Duration of single invocation	5.20 μs	3.15 μs	0.61	0.22	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Sort<IntStruct>*'

Payloads

Baseline
Compare

Histogram

System.Collections.Sort<IntStruct>.List(Size: 512)

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 3.147866971428571 < 4.577087700666666.
IsChangePoint: Marked as a change because one of 2/3/2022 4:53:52 PM, 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsImprovementStdDev: Marked as improvement because 7.261475247918764 (T) = (0 -3142.9022695238095) / Math.Sqrt((719774.9178139628 / (299)) + (69.00693862133146 / (7))) is greater than 1.9677981407170237 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (7) - 2, .975) and 0.10200429061945304 = (3499.907891198988 - 3142.9022695238095) / 3499.907891198988 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Architecture	x64
OS	alpine 3.12
Baseline	79d478ae01d9a3e7548bf41a76d047158ed8a62b
Compare	4017327955f1d8ddc43980eb1848c52fbb131dfc
Diff	Diff

Improvements in System.Tests.Perf_String

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Trim - Duration of single invocation	11.40 ns	10.35 ns	0.91	0.16	False

Test Report

Repro

git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'

Payloads

Baseline
Compare

Histogram

System.Tests.Perf_String.Trim(s: " Test")

Description of detection logic

IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 10.345376510820186 < 10.80952137873319.
IsChangePoint: Marked as a change because one of 2/19/2022 11:51:48 PM, 2/22/2022 12:12:47 AM falls between 2/13/2022 12:11:49 PM and 2/22/2022 12:12:47 AM.
IsImprovementStdDev: Marked as improvement because 16.529881704122886 (T) = (0 -10.352671688288888) / Math.Sqrt((0.4083174610974269 / (216)) + (0.005385178246898651 / (7))) is greater than 1.9707562704893595 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (216) + (7) - 2, .975) and 0.07607919542410702 = (11.205150524823468 - 10.352671688288888) / 11.205150524823468 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository