[Perf] Windows/arm64: 11 Improvements on 3/21/2023 8:47:40 PM

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.25094
Queue | AmpereWindows
Baseline | [7b651743dc951384f6c3d8455c88518022c7c3b9](https://github.com/dotnet/runtime/commit/7b651743dc951384f6c3d8455c88518022c7c3b9)
Compare | [b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e](https://github.com/dotnet/runtime/commit/b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b651743dc951384f6c3d8455c88518022c7c3b9...b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Memory.Span&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[LastIndexOfAnyValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Int32).LastIndexOfAnyValues(Size%3a%2033).html>) | 18.22 ns | 11.38 ns | 0.62 | 0.75 | False | | |
[IndexOfAnyThreeValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Int32).IndexOfAnyThreeValues(Size%3a%2033).html>) | 23.17 ns | 16.85 ns | 0.73 | 0.74 | False | | |
[IndexOfAnyTwoValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Int32).IndexOfAnyTwoValues(Size%3a%20512).html>) | 226.22 ns | 148.69 ns | 0.66 | 0.65 | False | | |
[IndexOfAnyThreeValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Int32).IndexOfAnyThreeValues(Size%3a%20512).html>) | 329.73 ns | 219.64 ns | 0.67 | 0.64 | False | | |
[LastIndexOfAnyValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Int32).LastIndexOfAnyValues(Size%3a%20512).html>) | 258.08 ns | 173.13 ns | 0.67 | 0.62 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32).html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Int32&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)
### Histogram

#### System.Memory.Span&lt;Int32&gt;.LastIndexOfAnyValues(Size: 33)

```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 11.384100805200976 < 15.997673222806256.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 15.261300750183922 (T) = (0 -12.081720786107194) / Math.Sqrt((3.930380561172975 / (299)) + (2.2601226322598964 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.2731203110143349 = (16.62134871723656 - 12.081720786107194) / 16.62134871723656 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Memory.Span&lt;Int32&gt;.IndexOfAnyThreeValues(Size: 33)

```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 16.849399183976967 < 21.113085140839534.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 15.986444218669153 (T) = (0 -14.783724242005347) / Math.Sqrt((6.246647411844153 / (299)) + (4.081382777657858 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.29990751286563433 = (21.116816011722136 - 14.783724242005347) / 21.116816011722136 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Memory.Span&lt;Int32&gt;.IndexOfAnyTwoValues(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 148.6934808867848 < 226.88935654835987.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 27.282918230083478 (T) = (0 -156.03739790183238) / Math.Sqrt((390.3278695878102 / (299)) + (243.66469774407238 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.3493235195406009 = (239.80795769913925 - 156.03739790183238) / 239.80795769913925 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Memory.Span&lt;Int32&gt;.IndexOfAnyThreeValues(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 219.63790402589947 < 356.0089872048877.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 34.472932386513044 (T) = (0 -215.4482979967405) / Math.Sqrt((941.430907251529 / (299)) + (407.8576836478109 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.3956721534967804 = (356.5089698304887 - 215.4482979967405) / 356.5089698304887 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Memory.Span&lt;Int32&gt;.LastIndexOfAnyValues(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 173.13442926889564 < 233.67179261806703.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 32.329009212557246 (T) = (0 -162.7186044913964) / Math.Sqrt((335.07390391043145 / (299)) + (151.26893072535057 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.33031074579266295 = (242.97628111712007 - 162.7186044913964) / 242.97628111712007 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

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.25094
Queue | AmpereWindows
Baseline | [7b651743dc951384f6c3d8455c88518022c7c3b9](https://github.com/dotnet/runtime/commit/7b651743dc951384f6c3d8455c88518022c7c3b9)
Compare | [b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e](https://github.com/dotnet/runtime/commit/b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b651743dc951384f6c3d8455c88518022c7c3b9...b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements 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_SecondHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options%3a%20(%2c%20IgnoreCase%2c%20False)).html>) | 381.00 ns | 286.29 ns | 0.75 | 0.66 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20None%2c%20False)).html>) | 294.03 ns | 244.79 ns | 0.83 | 0.64 | False | | |
[IsSuffix_SecondHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) | 321.29 ns | 248.94 ns | 0.77 | 0.62 | False | | |
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20IgnoreNonSpace%2c%20False)).html>) | 298.24 ns | 256.69 ns | 0.86 | 0.64 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Globalization.Tests.StringSearch_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Globalization.Tests.StringSearch_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Globalization.Tests.StringSearch_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Globalization.Tests.StringSearch_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Globalization.Tests.StringSearch.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (, IgnoreCase, False))

```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 286.2943018755276 < 346.7356305398328.
IsChangePoint: Marked as a change because one of 2/16/2023 1:21:52 PM, 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 5.207207083572452 (T) = (0 -314.3341690684903) / Math.Sqrt((1283.058387604346 / (299)) + (639.9105320551628 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.07736517516730554 = (340.69185403389685 - 314.3341690684903) / 340.69185403389685 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, None, False))

```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 244.79023200793 < 300.198213528544.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 11.806005045187737 (T) = (0 -258.45490852076205) / Math.Sqrt((562.919882024003 / (299)) + (484.9443726388003 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.16251817815241126 = (308.60957429568856 - 258.45490852076205) / 308.60957429568856 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, IgnoreNonSpace, False))

```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 248.9399418762031 < 294.13818829914277.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 12.924919765144384 (T) = (0 -252.88725518841736) / Math.Sqrt((541.8747048209774 / (299)) + (528.0599742498312 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.18380440183146593 = (309.83658299048966 - 252.88725518841736) / 309.83658299048966 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```
#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, IgnoreNonSpace, False))

```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 256.69356297580464 < 290.209402015199.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 12.950689376219652 (T) = (0 -255.88688908169175) / Math.Sqrt((617.3336196492965 / (299)) + (435.6275706858171 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.170891855404347 = (308.62908626532067 - 255.88688908169175) / 308.62908626532067 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

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.25094
Queue | AmpereWindows
Baseline | [7b651743dc951384f6c3d8455c88518022c7c3b9](https://github.com/dotnet/runtime/commit/7b651743dc951384f6c3d8455c88518022c7c3b9)
Compare | [b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e](https://github.com/dotnet/runtime/commit/b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b651743dc951384f6c3d8455c88518022c7c3b9...b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Memory.Span&lt;Char&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IndexOfAnyFiveValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Char).IndexOfAnyFiveValues(Size%3a%204).html>) | 8.26 ns | 4.26 ns | 0.52 | 0.82 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Char)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Char).html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Char&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)
### Histogram

#### System.Memory.Span&lt;Char&gt;.IndexOfAnyFiveValues(Size: 4)

```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 4.256221917452512 < 7.310916391874175.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 7.923211658180366 (T) = (0 -6.018644520740384) / Math.Sqrt((1.6603669886450352 / (299)) + (1.2343574205039127 / (30))) is greater than 1.9672451058622664 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (30) - 2, .975) and 0.22147540442245026 = (7.730834137970224 - 6.018644520740384) / 7.730834137970224 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

Name | Value
-- | --
Architecture | arm64
OS | Windows 10.0.25094
Queue | AmpereWindows
Baseline | [7b651743dc951384f6c3d8455c88518022c7c3b9](https://github.com/dotnet/runtime/commit/7b651743dc951384f6c3d8455c88518022c7c3b9)
Compare | [b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e](https://github.com/dotnet/runtime/commit/b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b651743dc951384f6c3d8455c88518022c7c3b9...b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Tests.Perf_Uri

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CtorIdnHostPathAndQuery - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input%3a%20%22http%3a%2f%2fhost%2fpath%3fkey1%3dvalue1%26key2%3dvalue2%26key3%3dvalue3%26key4%3dvalue4%22).html>) | 1.19 μs | 989.66 ns | 0.83 | 0.51 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Uri_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_30_2023/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Uri.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Uri*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f4e3d0d8-d7dd-4cfb-8a92-1ee0e096cb64452851b0f3d48a79f/10047c68-8f1d-41d6-b0a0-4295a2cd4463.zip?sv=2021-08-06&se=2023-04-20T07%3A26%3A02Z&sr=c&sp=rl&sig=eqHYXTVxoZQZQJJXfgrdWexRMVOR4oRUvqhKugYKecQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-783fe6df-1567-4fb7-909e-4d3885612fb62c736fd0d8c48829e/031bbcb3-ec6d-4f27-af93-2f5326b2563c.zip?sv=2021-08-06&se=2023-04-21T03%3A33%3A45Z&sr=c&sp=rl&sig=qCyQmCvZ5lwEddMsU5C2wP%2F8coFNC64E%2FAobhqr55t4%3D>)
### Histogram

#### System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input: "http://host/path?key1=value1&key2=value2&key3=value3&key4=value4")

```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 989.6598078124358 < 1.0625664003985795.
IsChangePoint: Marked as a change because one of 3/21/2023 2:53:21 PM, 3/30/2023 4:24:24 AM falls between 3/21/2023 2:53:21 PM and 3/30/2023 4:24:24 AM.
IsImprovementStdDev: Marked as improvement because 13.232123957077059 (T) = (0 -932.3858573421396) / Math.Sqrt((4494.27771225179 / (251)) + (6612.197962709002 / (30))) is greater than 1.9685031265482282 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (251) + (30) - 2, .975) and 0.1797107100333458 = (1136.6549200953755 - 932.3858573421396) / 1136.6549200953755 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>

Name	Value
Architecture	arm64
OS	Windows 10.0.25094
Queue	AmpereWindows
Baseline	7b651743dc951384f6c3d8455c88518022c7c3b9
Compare	b0b7aaefb88aa8d01b3d64fb40ac2f73a9d98c3e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
LastIndexOfAnyValues - Duration of single invocation	18.22 ns	11.38 ns	0.62	0.75	False
IndexOfAnyThreeValues - Duration of single invocation	23.17 ns	16.85 ns	0.73	0.74	False
IndexOfAnyTwoValues - Duration of single invocation	226.22 ns	148.69 ns	0.66	0.65	False
IndexOfAnyThreeValues - Duration of single invocation	329.73 ns	219.64 ns	0.67	0.64	False
LastIndexOfAnyValues - Duration of single invocation	258.08 ns	173.13 ns	0.67	0.62	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IsSuffix_SecondHalf - Duration of single invocation	381.00 ns	286.29 ns	0.75	0.66	False
IsPrefix_FirstHalf - Duration of single invocation	294.03 ns	244.79 ns	0.83	0.64	False
IsSuffix_SecondHalf - Duration of single invocation	321.29 ns	248.94 ns	0.77	0.62	False
IsPrefix_FirstHalf - Duration of single invocation	298.24 ns	256.69 ns	0.86	0.64	False

[Perf] Windows/arm64: 11 Improvements on 3/21/2023 8:47:40 PM #14624

Description

Run Information

Improvements in System.Memory.Span<Int32>

Repro

Payloads

Payloads

Histogram

System.Memory.Span<Int32>.LastIndexOfAnyValues(Size: 33)

Description of detection logic

System.Memory.Span<Int32>.IndexOfAnyThreeValues(Size: 33)

Description of detection logic

System.Memory.Span<Int32>.IndexOfAnyTwoValues(Size: 512)

Description of detection logic

System.Memory.Span<Int32>.IndexOfAnyThreeValues(Size: 512)

Description of detection logic

System.Memory.Span<Int32>.LastIndexOfAnyValues(Size: 512)

Description of detection logic

Docs

Run Information

Improvements in System.Globalization.Tests.StringSearch

Repro

Payloads

Payloads

Histogram

System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (, IgnoreCase, False))

Description of detection logic

System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, None, False))

Description of detection logic

System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, IgnoreNonSpace, False))

Description of detection logic

System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, IgnoreNonSpace, False))

Description of detection logic

Docs

Run Information

Improvements in System.Memory.Span<Char>

Repro

Payloads

Payloads

Histogram

System.Memory.Span<Char>.IndexOfAnyFiveValues(Size: 4)

Description of detection logic

Docs

Run Information

Improvements in System.Tests.Perf_Uri

Repro

Payloads

Payloads

Histogram

System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input: "http://host/path?key1=value1&key2=value2&key3=value3&key4=value4")

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions