[Perf] Windows 10.0.25094/arm64 : Improvement on 8/10/2022 11:28:06 PM

### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### Improvements in System.Tests.Perf_Array

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Tests.Perf_Array.Reverse.html>) | 105.75 ns | 86.83 ns | 0.82 | 0.59 | False | | |
[IndexOfShort - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Tests.Perf_Array.IndexOfShort.html>) | 26.56 ns | 16.82 ns | 0.63 | 0.68 | False | | |
[IndexOfChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Tests.Perf_Array.IndexOfChar.html>) | 22.27 ns | 13.16 ns | 0.59 | 0.72 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Array_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Array_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Array_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Array.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Array*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### System.Tests.Perf_Array.Reverse

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 6:55:40 AM, 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 31.386959615774234 (T) = (0 -68.59596554323386) / Math.Sqrt((1643.6627725194826 / (299)) + (65.56959697639218 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.5523060072810145 = (153.22065218393737 - 68.59596554323386) / 153.22065218393737 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Array.IndexOfShort

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 5/31/2022 5:02:26 PM, 6/6/2022 8:15:49 PM, 6/17/2022 2:19:07 PM, 8/17/2022 10:14:53 AM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 11.941384025455461 (T) = (0 -16.20729493479791) / Math.Sqrt((7.2856275579830045 / (299)) + (1.4515482441687102 / (4))) is greater than 1.9678765312856872 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (4) - 2, .975) and 0.3143653543424668 = (23.638383849834323 - 16.20729493479791) / 23.638383849834323 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Array.IndexOfChar

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 5/31/2022 10:47:41 AM, 6/6/2022 8:15:49 PM, 6/30/2022 10:26:14 PM, 8/11/2022 10:02:44 AM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 4.888432564741097 (T) = (0 -18.322311755593066) / Math.Sqrt((9.464402570143697 / (299)) + (8.505378133252316 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.124062865710557 = (20.917382125209315 - 18.322311755593066) / 20.917382125209315 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 | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - 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).Reverse(Size%3a%20512).html>) | 235.75 ns | 163.58 ns | 0.69 | 0.63 | False | | |
[LastIndexOfValue - 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).LastIndexOfValue(Size%3a%20512).html>) | 115.81 ns | 58.08 ns | 0.50 | 0.66 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/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/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_18_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32).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;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### System.Memory.Span&lt;Int32&gt;.Reverse(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 6:55:40 AM, 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 29.220096576861827 (T) = (0 -137.68064416364183) / Math.Sqrt((6847.434229540765 / (299)) + (340.75373276634394 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.5459981203497988 = (303.260075199957 - 137.68064416364183) / 303.260075199957 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Int32&gt;.LastIndexOfValue(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 13.875710502574806 (T) = (0 -69.99694582425289) / Math.Sqrt((111.45597203297228 / (299)) + (66.30161479916354 / (4))) is greater than 1.9678765312856872 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (4) - 2, .975) and 0.44936617689685776 = (127.12067963747548 - 69.99694582425289) / 127.12067963747548 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 | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### Improvements 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Reverse - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.Span(Byte).Reverse(Size%3a%20512).html>) | 246.23 ns | 43.96 ns | 0.18 | 0.68 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Byte)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/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://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### System.Memory.Span&lt;Byte&gt;.Reverse(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 6:55:40 AM, 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 82.8473279479604 (T) = (0 -33.996704204738755) / Math.Sqrt((2343.3931044860055 / (299)) + (19.158088121052103 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.8756840704307884 = (273.4702167497486 - 33.996704204738755) / 273.4702167497486 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 | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### Improvements in System.Collections.IterateForEach&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.IterateForEach(Int32).ConcurrentDictionary(Size%3a%20512).html>) | 28.57 μs | 23.07 μs | 0.81 | 0.65 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.IterateForEach(Int32)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.IterateForEach(Int32).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;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### System.Collections.IterateForEach&lt;Int32&gt;.ConcurrentDictionary(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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 18.403811107525176 (T) = (0 -21388.95300485393) / Math.Sqrt((7315062.335286484 / (299)) + (2779745.331549286 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.21355190974424765 = (27196.90373702638 - 21388.95300485393) / 27196.90373702638 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 | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### Improvements in BenchmarksGame.BinaryTrees_2

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RunBench - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/BenchmarksGame.BinaryTrees_2.RunBench.html>) | 302.28 ms | 252.44 ms | 0.84 | 0.54 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/BenchmarksGame.BinaryTrees_2_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/BenchmarksGame.BinaryTrees_2.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.BinaryTrees_2*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### BenchmarksGame.BinaryTrees_2.RunBench

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 6/22/2022 11:10:17 PM, 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 18.275465793291815 (T) = (0 -247854770.25983882) / Math.Sqrt((689560499765791.8 / (299)) + (147520533866402.12 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.1560991589880753 = (293701295.47760046 - 247854770.25983882) / 293701295.47760046 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 | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b](https://github.com/dotnet/runtime/commit/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b)
Compare | [7be37908e5a1cbb83b1062768c1649827eeaceaa](https://github.com/dotnet/runtime/commit/7be37908e5a1cbb83b1062768c1649827eeaceaa)
Diff | [Diff](https://github.com/dotnet/runtime/compare/9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b...7be37908e5a1cbb83b1062768c1649827eeaceaa)


### Improvements in BenchmarksGame.FannkuchRedux_9

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[RunBench - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/BenchmarksGame.FannkuchRedux_9.RunBench(n%3a%2011%2c%20expectedSum%3a%20556355).html>) | 128.82 ms | 62.10 ms | 0.48 | 0.66 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/BenchmarksGame.FannkuchRedux_9_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_19_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/BenchmarksGame.FannkuchRedux_9.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'BenchmarksGame.FannkuchRedux_9*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-f5d36bad-d148-4941-ada4-2d3cb4c0543c6a4f00f3a2e42c29a/ee0ef938-acdd-4c7f-bf52-0cc1262553a7.zip?sv=2021-06-08&se=2022-09-09T14%3A22%3A10Z&sr=c&sp=rl&sig=zZ3K1nkMXGEAgcmxt%2FESAkvFSlkpQbU1Nh%2BHWsqvcVQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-32f96739-3902-4ebc-b804-678809f4fa3742cfbf4056a4f7d8f/9af8fb7f-43ce-475d-8da3-793dcb7beb51.zip?sv=2021-08-06&se=2022-09-10T06%3A04%3A01Z&sr=c&sp=rl&sig=CYEjjdFCiDrBDQC2XJyO4bZUxorZbw9IX73QFh7bt%2BM%3D>)
### Histogram

#### BenchmarksGame.FannkuchRedux_9.RunBench(n: 11, expectedSum: 556355)

```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 we could not find enough baseline builds for window checking.
IsChangePoint: Marked as a change because one of 8/10/2022 5:14:51 PM, 8/18/2022 11:13:04 AM falls between 8/9/2022 9:33:37 PM and 8/18/2022 11:13:04 AM.
IsImprovementStdDev: Marked as improvement because 9.326437938067002 (T) = (0 -75839386.09669577) / Math.Sqrt((658128230302220.8 / (299)) + (287732473443652.06 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.2797724204288068 = (105299197.43124636 - 75839386.09669577) / 105299197.43124636 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>




Architecture	arm64
OS	Windows 10.0.25094
Baseline	9fd407ae7a1b6a846a60fc0269b60d984b0e3c0b
Compare	7be37908e5a1cbb83b1062768c1649827eeaceaa
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Reverse - Duration of single invocation	105.75 ns	86.83 ns	0.82	0.59	False
IndexOfShort - Duration of single invocation	26.56 ns	16.82 ns	0.63	0.68	False
IndexOfChar - Duration of single invocation	22.27 ns	13.16 ns	0.59	0.72	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
Reverse - Duration of single invocation	235.75 ns	163.58 ns	0.69	0.63	False
LastIndexOfValue - Duration of single invocation	115.81 ns	58.08 ns	0.50	0.66	False

[Perf] Windows 10.0.25094/arm64 : Improvement on 8/10/2022 11:28:06 PM #7405

Description

Run Information

Improvements in System.Tests.Perf_Array

Repro

Payloads

Histogram

System.Tests.Perf_Array.Reverse

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Memory.Span<Int32>

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Memory.Span<Byte>

Repro

Payloads

Histogram

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

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateForEach<Int32>

Repro

Payloads

Histogram

System.Collections.IterateForEach<Int32>.ConcurrentDictionary(Size: 512)

Description of detection logic

Docs

Run Information

Improvements in BenchmarksGame.BinaryTrees_2

Repro

Payloads

Histogram

BenchmarksGame.BinaryTrees_2.RunBench

Description of detection logic

Docs

Run Information

Improvements in BenchmarksGame.FannkuchRedux_9

Repro

Payloads

Histogram

BenchmarksGame.FannkuchRedux_9.RunBench(n: 11, expectedSum: 556355)

Description of detection logic

Docs

Metadata

Metadata

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Type

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