[Perf] Changes at 4/8/2022 2:40:20 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414](https://github.com/dotnet/runtime/commit/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414)
Compare | [aff3c1867b50d8a021c0a7b1df94f54a40cb44a5](https://github.com/dotnet/runtime/commit/aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414...aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)


### Improvements in System.Tests.Perf_GC&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[AllocateUninitializedArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_GC(Byte).AllocateUninitializedArray(length%3a%2010000%2c%20pinned%3a%20True).html>) | 427.72 ns | 366.89 ns | 0.86 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_GC(Byte)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_GC(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-83860c0a-400f-4cd0-9e97-198411f614e6b64f88057ba4e5190/134ae48c-d3ea-4eac-af8e-7a98ccb65eff.zip?sv=2019-07-07&se=2022-05-08T08%3A35%3A05Z&sr=c&sp=rl&sig=06ZuvskfmZULiRsaR7TmRw9hgTbJSkseBc3HPhHw28E%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-77eb4916-89f7-4f91-a4c3-8a3f72962a2286f3bd7acaf4c08b4/7d08689f-f610-40e1-896b-3edb55c997af.zip?sv=2019-07-07&se=2022-05-08T20%3A31%3A55Z&sr=c&sp=rl&sig=mm8Wgd%2BDNrUvKdBzyL8b3Hy2Jnnp2WUOZFfur5DXCAk%3D>)
### Histogram

#### System.Tests.Perf_GC&lt;Byte&gt;.AllocateUninitializedArray(length: 10000, pinned: True)

```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 366.8895214094694 < 404.4742089437172.
IsChangePoint: Marked as a change because one of 3/11/2022 8:42:43 PM, 3/30/2022 4:48:39 AM, 4/8/2022 10:19:59 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 14.118759821457973 (T) = (0 -368.8920673432263) / Math.Sqrt((414.10755763822567 / (299)) + (17.72711012931483 / (20))) is greater than 1.9674756580274855 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (20) - 2, .975) and 0.05453589642680605 = (390.17035755146276 - 368.8920673432263) / 390.17035755146276 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 | ubuntu 18.04
Baseline | [7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414](https://github.com/dotnet/runtime/commit/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414)
Compare | [aff3c1867b50d8a021c0a7b1df94f54a40cb44a5](https://github.com/dotnet/runtime/commit/aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414...aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Replace_Char - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_String.Replace_Char(text%3a%20%22This%20is%20a%20very%20nice%20sentence%22%2c%20oldChar%3a%20%27z%27%2c%20newChar%3a%20%27y%27).html>) | 10.11 ns | 7.30 ns | 0.72 | 0.31 | False | | |
[IndexerCheckLengthHoisting - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_String.IndexerCheckLengthHoisting.html>) | 21.57 ns | 19.19 ns | 0.89 | 0.33 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_String_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_String_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-83860c0a-400f-4cd0-9e97-198411f614e6b64f88057ba4e5190/134ae48c-d3ea-4eac-af8e-7a98ccb65eff.zip?sv=2019-07-07&se=2022-05-08T08%3A35%3A05Z&sr=c&sp=rl&sig=06ZuvskfmZULiRsaR7TmRw9hgTbJSkseBc3HPhHw28E%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-77eb4916-89f7-4f91-a4c3-8a3f72962a2286f3bd7acaf4c08b4/7d08689f-f610-40e1-896b-3edb55c997af.zip?sv=2019-07-07&se=2022-05-08T20%3A31%3A55Z&sr=c&sp=rl&sig=mm8Wgd%2BDNrUvKdBzyL8b3Hy2Jnnp2WUOZFfur5DXCAk%3D>)
### Histogram

#### System.Tests.Perf_String.Replace_Char(text: "This is a very nice sentence", oldChar: 'z', newChar: 'y')

```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 7.298343876443408 < 9.17355368150166.
IsChangePoint: Marked as a change because one of 2/7/2022 7:01:56 PM, 4/8/2022 10:19:59 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 52.25566234952647 (T) = (0 -7.165163996741176) / Math.Sqrt((0.394398665238143 / (299)) + (0.008878531352493614 / (20))) is greater than 1.9674756580274855 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (20) - 2, .975) and 0.23443137589507262 = (9.359270705638444 - 7.165163996741176) / 9.359270705638444 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.IndexerCheckLengthHoisting

```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 19.187402745323006 < 19.46972704837636.
IsChangePoint: Marked as a change because one of 4/8/2022 2:39:06 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 20.622518953199368 (T) = (0 -19.216325371720316) / Math.Sqrt((0.7745331441540064 / (299)) + (0.053219907287792315 / (22))) is greater than 1.9674283869023508 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (22) - 2, .975) and 0.07059493312483664 = (20.67594212320066 - 19.216325371720316) / 20.67594212320066 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 | ubuntu 18.04
Baseline | [7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414](https://github.com/dotnet/runtime/commit/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414)
Compare | [aff3c1867b50d8a021c0a7b1df94f54a40cb44a5](https://github.com/dotnet/runtime/commit/aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414...aff3c1867b50d8a021c0a7b1df94f54a40cb44a5)


### Improvements in System.Tests.Perf_GC&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[AllocateUninitializedArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Tests.Perf_GC(Char).AllocateUninitializedArray(length%3a%2010000%2c%20pinned%3a%20True).html>) | 774.29 ns | 644.46 ns | 0.83 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_GC(Char)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Tests.Perf_GC(Char).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_GC&lt;Char&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-83860c0a-400f-4cd0-9e97-198411f614e6b64f88057ba4e5190/134ae48c-d3ea-4eac-af8e-7a98ccb65eff.zip?sv=2019-07-07&se=2022-05-08T08%3A35%3A05Z&sr=c&sp=rl&sig=06ZuvskfmZULiRsaR7TmRw9hgTbJSkseBc3HPhHw28E%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-77eb4916-89f7-4f91-a4c3-8a3f72962a2286f3bd7acaf4c08b4/7d08689f-f610-40e1-896b-3edb55c997af.zip?sv=2019-07-07&se=2022-05-08T20%3A31%3A55Z&sr=c&sp=rl&sig=mm8Wgd%2BDNrUvKdBzyL8b3Hy2Jnnp2WUOZFfur5DXCAk%3D>)
### Histogram

#### System.Tests.Perf_GC&lt;Char&gt;.AllocateUninitializedArray(length: 10000, pinned: True)

```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 644.4597260809168 < 719.1352941947051.
IsChangePoint: Marked as a change because one of 3/11/2022 8:42:43 PM, 3/30/2022 12:01:24 PM, 4/8/2022 10:19:59 AM, 4/12/2022 5:02:33 PM falls between 4/4/2022 4:14:58 AM and 4/12/2022 5:02:33 PM.
IsImprovementStdDev: Marked as improvement because 17.742511888762547 (T) = (0 -636.3045466867327) / Math.Sqrt((2183.2800555899717 / (299)) + (45.48720429051866 / (20))) is greater than 1.9674756580274855 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (20) - 2, .975) and 0.0794335710779592 = (691.2098102815119 - 636.3045466867327) / 691.2098102815119 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 4/8/2022 2:40:20 PM #4567

Run Information

Improvements in System.Tests.Perf_GC<Byte>

Repro

Payloads

Histogram

System.Tests.Perf_GC<Byte>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

Docs

Improvements in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.Replace_Char(text: "This is a very nice sentence", oldChar: 'z', newChar: 'y')

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Tests.Perf_GC<Char>

Repro

Payloads

Histogram

System.Tests.Perf_GC<Char>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

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Development

Architecture	x64
OS	ubuntu 18.04
Baseline	7c21927c257f8eff7ceb3f3c0fd4ee2c8fe6c414
Compare	aff3c1867b50d8a021c0a7b1df94f54a40cb44a5
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Replace_Char - Duration of single invocation	10.11 ns	7.30 ns	0.72	0.31	False
IndexerCheckLengthHoisting - Duration of single invocation	21.57 ns	19.19 ns	0.89	0.33	False

[Perf] Changes at 4/8/2022 2:40:20 PM #4567

Description

Run Information

Improvements in System.Tests.Perf_GC<Byte>

Repro

Payloads

Histogram

System.Tests.Perf_GC<Byte>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

Docs

Improvements in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.Replace_Char(text: "This is a very nice sentence", oldChar: 'z', newChar: 'y')

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Tests.Perf_GC<Char>

Repro

Payloads

Histogram

System.Tests.Perf_GC<Char>.AllocateUninitializedArray(length: 10000, pinned: True)

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions