Regressions in SequenceEqual

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4019e83878a81465f6e42e8502b53bc5d1752f81](https://github.com/dotnet/runtime/commit/4019e83878a81465f6e42e8502b53bc5d1752f81)
Compare | [019bc7f143ae5840fe7d0e8e720e4854b1a91c26](https://github.com/dotnet/runtime/commit/019bc7f143ae5840fe7d0e8e720e4854b1a91c26)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4019e83878a81465f6e42e8502b53bc5d1752f81...019bc7f143ae5840fe7d0e8e720e4854b1a91c26)


### Regressions in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IsSuffix_DifferentLastChar - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>) | 16.64 ns | 19.98 ns | 1.20 | 0.29 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>) | 12.03 ns | 13.96 ns | 1.16 | 0.18 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Globalization.Tests.StringSearch_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Globalization.Tests.StringSearch_2.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a3db38ff-f445-489e-af4b-45353bf955e3d08bbb013814906b0/9e958a9c-2436-4308-afc6-3c010447b330.zip?sv=2019-07-07&se=2022-04-26T19%3A39%3A56Z&sr=c&sp=rl&sig=liQhu9jF9SmlzB9Mv7KWAzJ8ST6mNAuZJoOzonOnSs0%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-fdee6a69-3a34-4792-8043-28c03fa90a53e96bd9dcd7c4cc293/e898c122-368f-4b90-bfdf-4d54d967f95e.zip?sv=2019-07-07&se=2022-04-27T18%3A52%3A58Z&sr=c&sp=rl&sig=8fXh1vGqeIwfKkrHe9ga%2F8hopkYtOtXsKCf%2BYGwKIgs%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, Ordinal, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 19.97911225341915 > 17.44699084664059.
IsChangePoint: Marked as a change because one of 3/2/2022 3:17:47 PM, 3/28/2022 7:37:41 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -13.002365424661688 (T) = (0 -19.115487599893818) / Math.Sqrt((0.32787265954056094 / (19)) + (0.5051995568270351 / (36))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (36) - 2, .025) and -0.13677715168127164 = (16.8155100334506 - 19.115487599893818) / 16.8155100334506 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, Ordinal, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.957168843212287 > 12.539578215438409.
IsChangePoint: Marked as a change because one of 2/4/2022 6:00:25 PM, 3/2/2022 3:17:47 PM, 3/30/2022 4:48:39 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -10.00018437580746 (T) = (0 -14.18687111136129) / Math.Sqrt((0.34624076266092135 / (28)) + (0.5333189236045973 / (27))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (28) + (27) - 2, .025) and -0.1445935477736601 = (12.39468031158839 - 14.18687111136129) / 12.39468031158839 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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 | [4019e83878a81465f6e42e8502b53bc5d1752f81](https://github.com/dotnet/runtime/commit/4019e83878a81465f6e42e8502b53bc5d1752f81)
Compare | [019bc7f143ae5840fe7d0e8e720e4854b1a91c26](https://github.com/dotnet/runtime/commit/019bc7f143ae5840fe7d0e8e720e4854b1a91c26)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4019e83878a81465f6e42e8502b53bc5d1752f81...019bc7f143ae5840fe7d0e8e720e4854b1a91c26)


### Regressions in System.Memory.Span&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[SequenceEqual - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Memory.Span(Byte).SequenceEqual(Size%3a%20512).html>) | 12.39 ns | 14.71 ns | 1.19 | 0.13 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Memory.Span(Byte)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Memory.Span(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Span&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a3db38ff-f445-489e-af4b-45353bf955e3d08bbb013814906b0/9e958a9c-2436-4308-afc6-3c010447b330.zip?sv=2019-07-07&se=2022-04-26T19%3A39%3A56Z&sr=c&sp=rl&sig=liQhu9jF9SmlzB9Mv7KWAzJ8ST6mNAuZJoOzonOnSs0%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-fdee6a69-3a34-4792-8043-28c03fa90a53e96bd9dcd7c4cc293/e898c122-368f-4b90-bfdf-4d54d967f95e.zip?sv=2019-07-07&se=2022-04-27T18%3A52%3A58Z&sr=c&sp=rl&sig=8fXh1vGqeIwfKkrHe9ga%2F8hopkYtOtXsKCf%2BYGwKIgs%3D>)
### Histogram

#### System.Memory.Span&lt;Byte&gt;.SequenceEqual(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 14.712574604126564 > 13.072225077291382.
IsChangePoint: Marked as a change because one of 1/28/2022 6:30:08 PM, 3/11/2022 8:42:43 PM, 3/17/2022 6:54:53 PM, 3/28/2022 7:37:41 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -8.217728367436298 (T) = (0 -13.685223290119147) / Math.Sqrt((0.21000824790973555 / (18)) + (0.39593923483020577 / (36))) is less than -2.0066468050606243 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (18) + (36) - 2, .025) and -0.09938774412884786 = (12.448040614608892 - 13.685223290119147) / 12.448040614608892 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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 | [4019e83878a81465f6e42e8502b53bc5d1752f81](https://github.com/dotnet/runtime/commit/4019e83878a81465f6e42e8502b53bc5d1752f81)
Compare | [019bc7f143ae5840fe7d0e8e720e4854b1a91c26](https://github.com/dotnet/runtime/commit/019bc7f143ae5840fe7d0e8e720e4854b1a91c26)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4019e83878a81465f6e42e8502b53bc5d1752f81...019bc7f143ae5840fe7d0e8e720e4854b1a91c26)


### Regressions in System.Globalization.Tests.StringEquality

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Compare_Same - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Globalization.Tests.StringEquality.Compare_Same(Count%3a%201024%2c%20Options%3a%20(en-US%2c%20Ordinal)).html>) | 54.44 ns | 67.42 ns | 1.24 | 0.17 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Globalization.Tests.StringEquality_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/04_05_2022/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Globalization.Tests.StringEquality.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringEquality*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-a3db38ff-f445-489e-af4b-45353bf955e3d08bbb013814906b0/9e958a9c-2436-4308-afc6-3c010447b330.zip?sv=2019-07-07&se=2022-04-26T19%3A39%3A56Z&sr=c&sp=rl&sig=liQhu9jF9SmlzB9Mv7KWAzJ8ST6mNAuZJoOzonOnSs0%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-fdee6a69-3a34-4792-8043-28c03fa90a53e96bd9dcd7c4cc293/e898c122-368f-4b90-bfdf-4d54d967f95e.zip?sv=2019-07-07&se=2022-04-27T18%3A52%3A58Z&sr=c&sp=rl&sig=8fXh1vGqeIwfKkrHe9ga%2F8hopkYtOtXsKCf%2BYGwKIgs%3D>)
### Histogram

#### System.Globalization.Tests.StringEquality.Compare_Same(Count: 1024, Options: (en-US, Ordinal))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 67.42402506213939 > 57.61935682181894.
IsChangePoint: Marked as a change because one of 2/19/2022 11:51:48 PM, 3/17/2022 6:54:53 PM, 3/28/2022 7:37:41 AM, 4/5/2022 2:02:34 AM falls between 3/26/2022 9:07:40 PM and 4/5/2022 2:02:34 AM.
IsRegressionStdDev: Marked as regression because -24.152920412669175 (T) = (0 -71.68631198538739) / Math.Sqrt((2.5467050998996177 / (19)) + (13.176893030965825 / (36))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (36) - 2, .025) and -0.31277837319955654 = (54.606560748461 - 71.68631198538739) / 54.606560748461 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
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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Regressions in SequenceEqual #67596

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, Ordinal, False))

Description of detection logic

Description of detection logic

Docs

Regressions in System.Memory.Span<Byte>

Repro

Payloads

Histogram

System.Memory.Span<Byte>.SequenceEqual(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Globalization.Tests.StringEquality

Repro

Payloads

Histogram

System.Globalization.Tests.StringEquality.Compare_Same(Count: 1024, Options: (en-US, Ordinal))

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

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Development

Architecture	x64
OS	Windows 10.0.18362
Baseline	4019e83878a81465f6e42e8502b53bc5d1752f81
Compare	019bc7f143ae5840fe7d0e8e720e4854b1a91c26
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IsSuffix_DifferentLastChar - Duration of single invocation	16.64 ns	19.98 ns	1.20	0.29	False
IsPrefix_FirstHalf - Duration of single invocation	12.03 ns	13.96 ns	1.16	0.18	False

Regressions in SequenceEqual #67596

Description

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, Ordinal, False))

Description of detection logic

Description of detection logic

Docs

Regressions in System.Memory.Span<Byte>

Repro

Payloads

Histogram

System.Memory.Span<Byte>.SequenceEqual(Size: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Globalization.Tests.StringEquality

Repro

Payloads

Histogram

System.Globalization.Tests.StringEquality.Compare_Same(Count: 1024, Options: (en-US, Ordinal))

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions