[Perf] Windows 10.0.25094/arm64 : Improvement on 8/17/2022 3:53:31 PM

### Run Information

Architecture | arm64
-- | --
OS | Windows 10.0.25094
Baseline | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### Improvements in System.Collections.ContainsTrue&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).Stack(Size%3a%20512).html>) | 67.03 μs | 41.25 μs | 0.62 | 0.69 | False | | |
[ICollection - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).ICollection(Size%3a%20512).html>) | 51.99 μs | 48.20 μs | 0.93 | 0.65 | False | | |
[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).Queue(Size%3a%20512).html>) | 61.40 μs | 43.93 μs | 0.72 | 0.63 | False | | |
[Array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).Array(Size%3a%20512).html>) | 61.07 μs | 50.95 μs | 0.83 | 0.62 | False | | |
[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).ImmutableArray(Size%3a%20512).html>) | 63.23 μs | 46.27 μs | 0.73 | 0.64 | False | | |
[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).Span(Size%3a%20512).html>) | 46.42 μs | 43.77 μs | 0.94 | 0.63 | False | | |
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsTrue(Int32).List(Size%3a%20512).html>) | 57.28 μs | 44.15 μs | 0.77 | 0.61 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32)_7.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsTrue(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsTrue&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%3D>)
### Histogram

#### System.Collections.ContainsTrue&lt;Int32&gt;.Stack(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 41.253126285347044 < 67.7046807528753.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 34.1691832461261 (T) = (0 -44640.5170014645) / Math.Sqrt((38086453.35239626 / (299)) + (15211634.832324246 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.3727470384452504 = (71168.28414937355 - 44640.5170014645) / 71168.28414937355 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.ICollection(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 48.20371333333333 < 51.444510113463124.
IsChangePoint: Marked as a change because one of 8/16/2022 2:19:13 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 14.260396400117736 (T) = (0 -46039.32976362666) / Math.Sqrt((23613145.797331817 / (299)) + (16948473.156914372 / (36))) is greater than 1.9671134448822736 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (36) - 2, .975) and 0.18676905032243843 = (56612.85983013905 - 46039.32976362666) / 56612.85983013905 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.Queue(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 43.9313289695946 < 58.76969228871477.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 19.44803832456189 (T) = (0 -47230.532762616334) / Math.Sqrt((17774521.593582354 / (299)) + (9547216.926427232 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.19762750643486657 = (58863.599065765266 - 47230.532762616334) / 58863.599065765266 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.Array(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 50.94738087431693 < 56.803101373231726.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 16.654078783070236 (T) = (0 -46151.61580738947) / Math.Sqrt((19141797.875240102 / (299)) + (13623397.965177797 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.20161896999559803 = (57806.50350263834 - 46151.61580738947) / 57806.50350263834 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.ImmutableArray(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 46.27290962099125 < 56.82066184925695.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 16.823422370849524 (T) = (0 -46666.69427964329) / Math.Sqrt((23986463.57867944 / (299)) + (15203114.672694461 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.2117574483120163 = (59203.47002291211 - 46666.69427964329) / 59203.47002291211 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.Span(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 43.768999643874636 < 51.9272928917646.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 18.016796817942907 (T) = (0 -39875.74653469465) / Math.Sqrt((17365136.97893322 / (299)) + (12365193.773345778 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.2314969173576864 = (51887.555737045914 - 39875.74653469465) / 51887.555737045914 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsTrue&lt;Int32&gt;.List(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 44.14557784810127 < 52.967123514074515.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 15.449053197310603 (T) = (0 -44475.402359914726) / Math.Sqrt((19259872.629205693 / (299)) + (13538781.927293537 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.1951920395186652 = (55262.13027678695 - 44475.402359914726) / 55262.13027678695 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 | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### 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_arm64_Windows 10.0.25094/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>) | 16.21 ns | 9.52 ns | 0.59 | 0.75 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_String_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%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 9.5195120014171 < 14.550140191036471.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 27.910603059604952 (T) = (0 -10.029686263507138) / Math.Sqrt((6.433893987766081 / (299)) + (2.6344452229866913 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.47278361857628587 = (19.02385171800355 - 10.029686263507138) / 19.02385171800355 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 | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### Improvements in System.Collections.ContainsFalse&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsFalse(Int32).Span(Size%3a%20512).html>) | 78.35 μs | 66.86 μs | 0.85 | 0.65 | False | | |
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsFalse(Int32).List(Size%3a%20512).html>) | 90.82 μs | 81.11 μs | 0.89 | 0.60 | False | | |
[ICollection - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsFalse(Int32).ICollection(Size%3a%20512).html>) | 94.69 μs | 72.85 μs | 0.77 | 0.62 | False | | |
[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Collections.ContainsFalse(Int32).Stack(Size%3a%20512).html>) | 148.53 μs | 74.14 μs | 0.50 | 0.63 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsFalse(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsFalse(Int32)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsFalse(Int32)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsFalse(Int32)_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Collections.ContainsFalse(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.ContainsFalse&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%3D>)
### Histogram

#### System.Collections.ContainsFalse&lt;Int32&gt;.Span(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 66.8583940092166 < 74.61047012371013.
IsChangePoint: Marked as a change because one of 5/29/2022 5:15:01 PM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 9.243466667712314 (T) = (0 -73206.4718910854) / Math.Sqrt((42797359.46293402 / (299)) + (38778450.22937386 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.12814280961511312 = (83966.12736401008 - 73206.4718910854) / 83966.12736401008 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&lt;Int32&gt;.List(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 81.11086376404496 < 85.35221265625.
IsChangePoint: Marked as a change because one of 5/30/2022 9:47:47 AM, 8/17/2022 2:33:27 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 7.541304064368708 (T) = (0 -78149.69790489855) / Math.Sqrt((42154156.70759557 / (299)) + (26018215.79948908 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.0851121837875006 = (85419.97884333707 - 78149.69790489855) / 85419.97884333707 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&lt;Int32&gt;.ICollection(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 72.85459178743963 < 84.55407176723376.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 8/18/2022 7:53:08 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 8.349946921880473 (T) = (0 -74919.31349042665) / Math.Sqrt((48526613.14642653 / (299)) + (42935193.42956646 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.13254983838687245 = (86367.28287779116 - 74919.31349042665) / 86367.28287779116 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&lt;Int32&gt;.Stack(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 74.14113445945945 < 121.38300431386634.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 42.455394909063216 (T) = (0 -78600.16687781751) / Math.Sqrt((115988361.63977732 / (299)) + (48673354.38685118 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.4273577533133018 = (137258.76379641428 - 78600.16687781751) / 137258.76379641428 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 | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[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>) | 20.25 ns | 15.49 ns | 0.76 | 0.68 | False | | |
[ArrayRetrieve3D - 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.ArrayRetrieve3D.html>) | 4.22 ms | 3.64 ms | 0.86 | 0.60 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_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_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Tests.Perf_Array_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_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-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%3D>)
### Histogram

#### 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 15.48895191789797 < 19.86879030453027.
IsChangePoint: Marked as a change because one of 6/6/2022 8:15:49 PM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 24.884457752137788 (T) = (0 -16.052239949029847) / Math.Sqrt((7.2856275579830045 / (299)) + (2.1942317028723917 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.32092481233050313 = (23.638383849834323 - 16.052239949029847) / 23.638383849834323 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_Array.ArrayRetrieve3D

```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 3.63990590625 < 3.78065503125.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 15.292852249065243 (T) = (0 -3354521.282226563) / Math.Sqrt((133220105407.60631 / (299)) + (36295054849.3932 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.15340243469953524 = (3962356.4013393004 - 3354521.282226563) / 3962356.4013393004 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 | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### Improvements in System.Memory.SequenceReader

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryReadTo - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_Windows 10.0.25094/System.Memory.SequenceReader.TryReadTo.html>) | 358.10 ns | 204.59 ns | 0.57 | 0.63 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.SequenceReader_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.SequenceReader.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.SequenceReader*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%3D>)
### Histogram

#### System.Memory.SequenceReader.TryReadTo

```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 204.59007816250602 < 317.3375234503376.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 34.89481796400625 (T) = (0 -232.02008166429772) / Math.Sqrt((942.8037382565044 / (299)) + (358.341239609356 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.36295453181064785 = (364.2127497174711 - 232.02008166429772) / 364.2127497174711 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 | [96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7](https://github.com/dotnet/runtime/commit/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7)
Compare | [6521c2b7c01660873fa978c9e73038a1d75e7962](https://github.com/dotnet/runtime/commit/6521c2b7c01660873fa978c9e73038a1d75e7962)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7...6521c2b7c01660873fa978c9e73038a1d75e7962)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[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>) | 132.68 ns | 66.75 ns | 0.50 | 0.67 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_Windows%2010.0.25094_Improvement/System.Memory.Span(Int32)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_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-fdc46dfb-05b9-486d-8392-887447d901acfce5f48cbe5441eac/0d2fb4ea-2301-45fa-97b2-c8e5f7974cc0.zip?sv=2021-08-06&se=2022-09-16T08%3A16%3A36Z&sr=c&sp=rl&sig=fL7QPcdOcb%2Fa4U0w7%2BGmjQbQu5BQyCgq%2FLtusGTZ5CY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ccac2dd2-2226-4147-ae64-b7a824683010b92f5d1a55447a3bb/9eeabe2b-97ba-40fd-ab3b-f7bbef1e694b.zip?sv=2021-08-06&se=2022-09-16T22%3A14%3A13Z&sr=c&sp=rl&sig=%2FpbrRMDJCwTuEqDrqVl%2BgshHRUDhxHCJrdBI2dg31CI%3D>)
### Histogram

#### 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 66.74933088818399 < 125.57861421714051.
IsChangePoint: Marked as a change because one of 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 42.915516384559616 (T) = (0 -68.38077768592535) / Math.Sqrt((111.45597203297228 / (299)) + (48.021400153125356 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.46207982933276787 = (127.12067963747548 - 68.38077768592535) / 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>




Architecture	arm64
OS	Windows 10.0.25094
Baseline	96d1c8e3ba4bc94afdcf15ee2896a3bc984820e7
Compare	6521c2b7c01660873fa978c9e73038a1d75e7962
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Stack - Duration of single invocation	67.03 μs	41.25 μs	0.62	0.69	False
ICollection - Duration of single invocation	51.99 μs	48.20 μs	0.93	0.65	False
Queue - Duration of single invocation	61.40 μs	43.93 μs	0.72	0.63	False
Array - Duration of single invocation	61.07 μs	50.95 μs	0.83	0.62	False
ImmutableArray - Duration of single invocation	63.23 μs	46.27 μs	0.73	0.64	False
Span - Duration of single invocation	46.42 μs	43.77 μs	0.94	0.63	False
List - Duration of single invocation	57.28 μs	44.15 μs	0.77	0.61	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Span - Duration of single invocation	78.35 μs	66.86 μs	0.85	0.65	False
List - Duration of single invocation	90.82 μs	81.11 μs	0.89	0.60	False
ICollection - Duration of single invocation	94.69 μs	72.85 μs	0.77	0.62	False
Stack - Duration of single invocation	148.53 μs	74.14 μs	0.50	0.63	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IndexOfShort - Duration of single invocation	20.25 ns	15.49 ns	0.76	0.68	False
ArrayRetrieve3D - Duration of single invocation	4.22 ms	3.64 ms	0.86	0.60	False

[Perf] Windows 10.0.25094/arm64 : Improvement on 8/17/2022 3:53:31 PM #8046

Description

Run Information

Improvements in System.Collections.ContainsTrue<Int32>

Repro

Payloads

Histogram

System.Collections.ContainsTrue<Int32>.Stack(Size: 512)

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

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Description of detection logic

Docs

Improvements in System.Tests.Perf_String

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

Description of detection logic

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Improvements in System.Collections.ContainsFalse<Int32>

Repro

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Histogram

System.Collections.ContainsFalse<Int32>.Span(Size: 512)

Description of detection logic

Description of detection logic

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Docs

Run Information

Improvements in System.Tests.Perf_Array

Repro

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Histogram

System.Tests.Perf_Array.IndexOfShort

Description of detection logic

Description of detection logic

Docs

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Improvements in System.Memory.SequenceReader

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Histogram

System.Memory.SequenceReader.TryReadTo

Description of detection logic

Docs

Run Information

Improvements in System.Memory.Span<Int32>

Repro

Payloads

Histogram

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

Description of detection logic

Docs

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