[Perf] Changes at 3/15/2022 4:36:24 AM

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4b93e5252e8df38145bc8d2129805d4d1e74f74a](https://github.com/dotnet/runtime/commit/4b93e5252e8df38145bc8d2129805d4d1e74f74a)
Compare | [7eaabea373d67206449f662cad8fe78303c71259](https://github.com/dotnet/runtime/commit/7eaabea373d67206449f662cad8fe78303c71259)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b93e5252e8df38145bc8d2129805d4d1e74f74a...7eaabea373d67206449f662cad8fe78303c71259)


### Improvements in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ForeachOverList100Elements - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/PerfLabTests.LowLevelPerf.ForeachOverList100Elements.html>) | 10.64 ms | 8.71 ms | 0.82 | 0.00 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/PerfLabTests.LowLevelPerf_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/PerfLabTests.LowLevelPerf.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'PerfLabTests.LowLevelPerf*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-281caa01-7941-48f7-8349-9f9a2860baa0e0a1581f38b4c9194/43797057-3e30-4352-bd6c-4473c680a932.zip?sv=2019-07-07&se=2022-04-13T23%3A14%3A41Z&sr=c&sp=rl&sig=u%2Bpd0YsTpYOf%2FY4HlnXOZ%2BqbMCv47rp71bdyDu%2FfeXo%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-8871d729-139a-4693-899e-a5c6e43fc9718bee673d4734f9c8e/3fec113f-cebb-4df9-9f3b-892a6820ec58.zip?sv=2019-07-07&se=2022-04-14T13%3A04%3A37Z&sr=c&sp=rl&sig=a5xnGmwO2sZ%2FN%2BOWK54ZSIhS6Ke%2BMZpxj6FDUFkzlAk%3D>)
### Histogram

#### PerfLabTests.LowLevelPerf.ForeachOverList100Elements

```log

```
### Description of detection logic
```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.
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 8.711675961538463 < 10.112381754836308.
IsChangePoint: Marked as a change because one of 3/15/2022 12:53:39 AM, 3/22/2022 2:14:22 AM falls between 3/13/2022 11:50:20 AM and 3/22/2022 2:14:22 AM.
IsImprovementStdDev: Marked as improvement because 171.6539235421897 (T) = (0 -8713482.518937865) / Math.Sqrt((30899917090.418278 / (299)) + (12492440.696085857 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.16709747171038972 = (10461587.308218714 - 8713482.518937865) / 10461587.308218714 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4b93e5252e8df38145bc8d2129805d4d1e74f74a](https://github.com/dotnet/runtime/commit/4b93e5252e8df38145bc8d2129805d4d1e74f74a)
Compare | [7eaabea373d67206449f662cad8fe78303c71259](https://github.com/dotnet/runtime/commit/7eaabea373d67206449f662cad8fe78303c71259)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b93e5252e8df38145bc8d2129805d4d1e74f74a...7eaabea373d67206449f662cad8fe78303c71259)


### Improvements in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WhereLast_LastElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Linq.Tests.Perf_Enumerable.WhereLast_LastElementMatches(input%3a%20List).html>) | 433.99 ns | 337.87 ns | 0.78 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/System.Linq.Tests.Perf_Enumerable_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/System.Linq.Tests.Perf_Enumerable.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-281caa01-7941-48f7-8349-9f9a2860baa0e0a1581f38b4c9194/43797057-3e30-4352-bd6c-4473c680a932.zip?sv=2019-07-07&se=2022-04-13T23%3A14%3A41Z&sr=c&sp=rl&sig=u%2Bpd0YsTpYOf%2FY4HlnXOZ%2BqbMCv47rp71bdyDu%2FfeXo%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-8871d729-139a-4693-899e-a5c6e43fc9718bee673d4734f9c8e/3fec113f-cebb-4df9-9f3b-892a6820ec58.zip?sv=2019-07-07&se=2022-04-14T13%3A04%3A37Z&sr=c&sp=rl&sig=a5xnGmwO2sZ%2FN%2BOWK54ZSIhS6Ke%2BMZpxj6FDUFkzlAk%3D>)
### Histogram

#### System.Linq.Tests.Perf_Enumerable.WhereLast_LastElementMatches(input: List)

```log

```
### Description of detection logic
```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.
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 337.87385702968703 < 410.9029677593275.
IsChangePoint: Marked as a change because one of 3/15/2022 12:53:39 AM, 3/22/2022 2:14:22 AM falls between 3/13/2022 11:50:20 AM and 3/22/2022 2:14:22 AM.
IsImprovementStdDev: Marked as improvement because 42.85315905593068 (T) = (0 -339.62450556830663) / Math.Sqrt((332.82993031883836 / (299)) + (66.06638038930052 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.18072204201511666 = (414.54124605482565 - 339.62450556830663) / 414.54124605482565 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4b93e5252e8df38145bc8d2129805d4d1e74f74a](https://github.com/dotnet/runtime/commit/4b93e5252e8df38145bc8d2129805d4d1e74f74a)
Compare | [7eaabea373d67206449f662cad8fe78303c71259](https://github.com/dotnet/runtime/commit/7eaabea373d67206449f662cad8fe78303c71259)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4b93e5252e8df38145bc8d2129805d4d1e74f74a...7eaabea373d67206449f662cad8fe78303c71259)


### Improvements in System.Collections.IterateForEach&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Collections.IterateForEach(String).List(Size%3a%20512).html>) | 2.67 μs | 2.11 μs | 0.79 | 0.47 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/System.Collections.IterateForEach(String)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_22_2022/refs/heads/main_x64_Windows%2010.0.18362_Improvement/System.Collections.IterateForEach(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.IterateForEach&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-281caa01-7941-48f7-8349-9f9a2860baa0e0a1581f38b4c9194/43797057-3e30-4352-bd6c-4473c680a932.zip?sv=2019-07-07&se=2022-04-13T23%3A14%3A41Z&sr=c&sp=rl&sig=u%2Bpd0YsTpYOf%2FY4HlnXOZ%2BqbMCv47rp71bdyDu%2FfeXo%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-8871d729-139a-4693-899e-a5c6e43fc9718bee673d4734f9c8e/3fec113f-cebb-4df9-9f3b-892a6820ec58.zip?sv=2019-07-07&se=2022-04-14T13%3A04%3A37Z&sr=c&sp=rl&sig=a5xnGmwO2sZ%2FN%2BOWK54ZSIhS6Ke%2BMZpxj6FDUFkzlAk%3D>)
### Histogram

#### System.Collections.IterateForEach&lt;String&gt;.List(Size: 512)

```log

```
### Description of detection logic
```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.
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 2.1061642783458914 < 2.538692514749969.
IsChangePoint: Marked as a change because one of 2/2/2022 1:56:18 PM, 3/7/2022 6:10:39 PM, 3/11/2022 8:42:43 PM, 3/15/2022 12:53:39 AM, 3/22/2022 2:14:22 AM falls between 3/13/2022 11:50:20 AM and 3/22/2022 2:14:22 AM.
IsImprovementStdDev: Marked as improvement because 11.681449723680757 (T) = (0 -2016.9133779242727) / Math.Sqrt((63328.123677563475 / (299)) + (9141.199120707508 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.1126710821247036 = (2273.0166202108676 - 2016.9133779242727) / 2273.0166202108676 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




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[Perf] Changes at 3/15/2022 4:36:24 AM #4223

Run Information

Improvements in PerfLabTests.LowLevelPerf

Repro

Payloads

Histogram

PerfLabTests.LowLevelPerf.ForeachOverList100Elements

Description of detection logic

Docs

Improvements in System.Linq.Tests.Perf_Enumerable

Repro

Payloads

Histogram

System.Linq.Tests.Perf_Enumerable.WhereLast_LastElementMatches(input: List)

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateForEach<String>

Repro

Payloads

Histogram

System.Collections.IterateForEach<String>.List(Size: 512)

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Architecture	x64
OS	Windows 10.0.18362
Baseline	4b93e5252e8df38145bc8d2129805d4d1e74f74a
Compare	7eaabea373d67206449f662cad8fe78303c71259
Diff	Diff

[Perf] Changes at 3/15/2022 4:36:24 AM #4223

Description

Run Information

Improvements in PerfLabTests.LowLevelPerf

Repro

Payloads

Histogram

PerfLabTests.LowLevelPerf.ForeachOverList100Elements

Description of detection logic

Docs

Improvements in System.Linq.Tests.Perf_Enumerable

Repro

Payloads

Histogram

System.Linq.Tests.Perf_Enumerable.WhereLast_LastElementMatches(input: List)

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateForEach<String>

Repro

Payloads

Histogram

System.Collections.IterateForEach<String>.List(Size: 512)

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions