[Perf] Changes at 7/9/2022 11:03:07 AM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [a4b5376ae65d81c71898801772655c79dea7cfc9](https://github.com/dotnet/runtime/commit/a4b5376ae65d81c71898801772655c79dea7cfc9)
Compare | [d344e72a84b98d84b3e34d37e9c59cf04930cf5b](https://github.com/dotnet/runtime/commit/d344e72a84b98d84b3e34d37e9c59cf04930cf5b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a4b5376ae65d81c71898801772655c79dea7cfc9...d344e72a84b98d84b3e34d37e9c59cf04930cf5b)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(Int32).List(Size%3a%20512).html>) | 21.05 μs | 19.61 μs | 0.93 | 0.08 | False | | |
[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(Int32).Span(Size%3a%20512).html>) | 21.85 μs | 15.96 μs | 0.73 | 0.06 | False | | |
[Array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(Int32).Array(Size%3a%20512).html>) | 24.42 μs | 19.91 μs | 0.82 | 0.06 | False | | |
[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsFalse(Int32).Queue(Size%3a%20512).html>) | 25.20 μs | 21.40 μs | 0.85 | 0.37 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(Int32)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(Int32)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(Int32)_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsFalse(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\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-c0dfc071-59b9-4e37-bfcf-82cb3bf2026fb7c8f31a06c4bf381/0399bbb9-15d5-4aab-b2bc-1633da38a32c.zip?sv=2021-06-08&se=2022-08-08T06%3A27%3A24Z&sr=c&sp=rl&sig=uFBh467W0iM9Zdkr%2BrSuU3yr2RB9X1tYLoqI%2BvtoQAs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4f644b1a-b534-4ee6-9574-2b9cedd06c4b7c7ee1727ad4482bf/eb90608e-e7f3-44da-945a-3d3dcc039700.zip?sv=2021-06-08&se=2022-08-08T15%3A30%3A43Z&sr=c&sp=rl&sig=Lz%2Be3PkQtuNePvdpDHF3PR5A%2BwS9iQwEBN4nFFC5T%2BU%3D>)
### Histogram

#### 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 19.613666423567544 < 19.988377445368076.
IsChangePoint: Marked as a change because one of 6/6/2022 10:51:35 AM, 6/7/2022 6:20:49 PM, 7/7/2022 8:07:51 AM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 9.893541282816582 (T) = (0 -18424.668387916943) / Math.Sqrt((1758315.4921175977 / (299)) + (2299801.9931612774 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.16409309640041578 = (22041.53154923903 - 18424.668387916943) / 22041.53154923903 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### 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 15.956796763506626 < 21.173704951799714.
IsChangePoint: Marked as a change because one of 5/11/2022 11:37:12 AM, 5/15/2022 3:27:46 PM, 6/23/2022 8:35:19 AM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 31.03696742451474 (T) = (0 -16911.083113592525) / Math.Sqrt((898058.5010502768 / (299)) + (387123.33245943894 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.2231992059607872 = (21770.167130826667 - 16911.083113592525) / 21770.167130826667 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&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 19.91145036664856 < 23.20537522375866.
IsChangePoint: Marked as a change because one of 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/21/2022 5:13:43 PM, 7/9/2022 11:03:07 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 14.025783158623344 (T) = (0 -19183.893961531212) / Math.Sqrt((1856868.0590143572 / (299)) + (1217168.6165255862 / (17))) is greater than 1.9675476980854363 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (17) - 2, .975) and 0.16939422028461537 = (23096.268326118276 - 19183.893961531212) / 23096.268326118276 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Collections.ContainsFalse&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 21.399525159598724 < 23.964579884968277.
IsChangePoint: Marked as a change because one of 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 26.250432319759103 (T) = (0 -21248.770228850808) / Math.Sqrt((2866722.107034016 / (299)) + (643359.4889320763 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.20824926714482453 = (26837.702002781178 - 21248.770228850808) / 26837.702002781178 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [a4b5376ae65d81c71898801772655c79dea7cfc9](https://github.com/dotnet/runtime/commit/a4b5376ae65d81c71898801772655c79dea7cfc9)
Compare | [d344e72a84b98d84b3e34d37e9c59cf04930cf5b](https://github.com/dotnet/runtime/commit/d344e72a84b98d84b3e34d37e9c59cf04930cf5b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a4b5376ae65d81c71898801772655c79dea7cfc9...d344e72a84b98d84b3e34d37e9c59cf04930cf5b)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).ImmutableArray(Size%3a%20512).html>) | 20.42 μs | 17.43 μs | 0.85 | 0.26 | False | | |
[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).Queue(Size%3a%20512).html>) | 20.35 μs | 17.18 μs | 0.84 | 0.20 | False | | |
[Array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).Array(Size%3a%20512).html>) | 20.50 μs | 15.58 μs | 0.76 | 0.07 | False | | |
[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).Stack(Size%3a%20512).html>) | 44.17 μs | 37.13 μs | 0.84 | 0.03 | False | | |
[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).Span(Size%3a%20512).html>) | 16.87 μs | 14.97 μs | 0.89 | 0.08 | False | | |
[ICollection - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).ICollection(Size%3a%20512).html>) | 18.71 μs | 16.34 μs | 0.87 | 0.07 | False | | |
[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.ContainsTrue(Int32).List(Size%3a%20512).html>) | 18.51 μs | 14.35 μs | 0.78 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32)_7.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.ContainsTrue(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\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-c0dfc071-59b9-4e37-bfcf-82cb3bf2026fb7c8f31a06c4bf381/0399bbb9-15d5-4aab-b2bc-1633da38a32c.zip?sv=2021-06-08&se=2022-08-08T06%3A27%3A24Z&sr=c&sp=rl&sig=uFBh467W0iM9Zdkr%2BrSuU3yr2RB9X1tYLoqI%2BvtoQAs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4f644b1a-b534-4ee6-9574-2b9cedd06c4b7c7ee1727ad4482bf/eb90608e-e7f3-44da-945a-3d3dcc039700.zip?sv=2021-06-08&se=2022-08-08T15%3A30%3A43Z&sr=c&sp=rl&sig=Lz%2Be3PkQtuNePvdpDHF3PR5A%2BwS9iQwEBN4nFFC5T%2BU%3D>)
### Histogram

#### 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 17.434601031215163 < 19.27826431859599.
IsChangePoint: Marked as a change because one of 7/8/2022 9:55:09 PM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 16.720346820149118 (T) = (0 -17084.509607826207) / Math.Sqrt((1900805.6984376688 / (299)) + (350386.33721693745 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.1358977413195275 = (19771.3979291237 - 17084.509607826207) / 19771.3979291237 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 17.17507250875737 < 19.285755914890988.
IsChangePoint: Marked as a change because one of 6/23/2022 8:35:19 AM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.24805763442453 (T) = (0 -16118.156574548642) / Math.Sqrt((1133357.331993097 / (299)) + (631116.0556098801 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.17418708664443425 = (19517.92750376711 - 16118.156574548642) / 19517.92750376711 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 15.5812739500497 < 19.621415556334657.
IsChangePoint: Marked as a change because one of 5/9/2022 3:10:19 PM, 5/9/2022 10:19:44 PM, 6/23/2022 8:35:19 AM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 19.736393181308085 (T) = (0 -16603.36982434116) / Math.Sqrt((694494.1472379067 / (299)) + (426039.8722351528 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.1608209821513781 = (19785.253767315015 - 16603.36982434116) / 19785.253767315015 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### 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 37.1311499456951 < 41.965711084571474.
IsChangePoint: Marked as a change because one of 5/9/2022 11:56:12 AM, 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/21/2022 5:13:43 PM, 7/10/2022 1:04:01 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.8946219518023 (T) = (0 -37134.16432240498) / Math.Sqrt((12539508.2174849 / (299)) + (291.5653872151264 / (13))) is greater than 1.9676459287777595 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (13) - 2, .975) and 0.08984331940105213 = (40799.74922336235 - 37134.16432240498) / 40799.74922336235 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 14.967602789857555 < 16.89118344530458.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/21/2022 5:13:43 PM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 19.177095738020085 (T) = (0 -14775.867713846521) / Math.Sqrt((2843105.745696776 / (299)) + (359677.1055103243 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.18225890883040183 = (18069.127103192164 - 14775.867713846521) / 18069.127103192164 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 16.34428559502736 < 17.621993693310664.
IsChangePoint: Marked as a change because one of 6/23/2022 8:35:19 AM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 24.357651565354406 (T) = (0 -15855.81006907048) / Math.Sqrt((579193.8980978553 / (299)) + (333825.6294623981 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.18023285731224267 = (19341.846291965656 - 15855.81006907048) / 19341.846291965656 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 14.353217553595398 < 17.580569699839113.
IsChangePoint: Marked as a change because one of 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/21/2022 5:13:43 PM, 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 19.860470918967604 (T) = (0 -15429.267140053582) / Math.Sqrt((1747445.0474270978 / (299)) + (517076.9823195819 / (17))) is greater than 1.9675476980854363 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (17) - 2, .975) and 0.19685834632426966 = (19211.14048740793 - 15429.267140053582) / 19211.14048740793 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [a4b5376ae65d81c71898801772655c79dea7cfc9](https://github.com/dotnet/runtime/commit/a4b5376ae65d81c71898801772655c79dea7cfc9)
Compare | [d344e72a84b98d84b3e34d37e9c59cf04930cf5b](https://github.com/dotnet/runtime/commit/d344e72a84b98d84b3e34d37e9c59cf04930cf5b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a4b5376ae65d81c71898801772655c79dea7cfc9...d344e72a84b98d84b3e34d37e9c59cf04930cf5b)


### Improvements in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Contains_ElementNotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.Contains_ElementNotFound(input%3a%20ICollection).html>) | 14.97 ns | 12.71 ns | 0.85 | 0.02 | False | | |
[WhereFirst_LastElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input%3a%20Array).html>) | 212.61 ns | 190.81 ns | 0.90 | 0.04 | False | | |
[WhereAny_LastElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereAny_LastElementMatches(input%3a%20Array).html>) | 210.91 ns | 189.40 ns | 0.90 | 0.03 | False | | |
[SelectToArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.SelectToArray(input%3a%20Range).html>) | 218.62 ns | 198.13 ns | 0.91 | 0.03 | False | | |
[WhereSelect - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Linq.Tests.Perf_Enumerable.WhereSelect(input%3a%20IEnumerable).html>) | 1.07 μs | 998.05 ns | 0.93 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_12_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Linq.Tests.Perf_Enumerable.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Linq.Tests.Perf_Enumerable*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-c0dfc071-59b9-4e37-bfcf-82cb3bf2026fb7c8f31a06c4bf381/0399bbb9-15d5-4aab-b2bc-1633da38a32c.zip?sv=2021-06-08&se=2022-08-08T06%3A27%3A24Z&sr=c&sp=rl&sig=uFBh467W0iM9Zdkr%2BrSuU3yr2RB9X1tYLoqI%2BvtoQAs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-4f644b1a-b534-4ee6-9574-2b9cedd06c4b7c7ee1727ad4482bf/eb90608e-e7f3-44da-945a-3d3dcc039700.zip?sv=2021-06-08&se=2022-08-08T15%3A30%3A43Z&sr=c&sp=rl&sig=Lz%2Be3PkQtuNePvdpDHF3PR5A%2BwS9iQwEBN4nFFC5T%2BU%3D>)
### Histogram

#### System.Linq.Tests.Perf_Enumerable.Contains_ElementNotFound(input: ICollection)

```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 12.708483424320816 < 14.213319143706883.
IsChangePoint: Marked as a change because one of 7/9/2022 7:28:50 AM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 24.01486247316527 (T) = (0 -12.749402186971729) / Math.Sqrt((0.11889448773336035 / (299)) + (0.11701639347971127 / (18))) is greater than 1.9675235316906419 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (18) - 2, .975) and 0.13528299981645042 = (14.744017041720552 - 12.749402186971729) / 14.744017041720552 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereFirst_LastElementMatches(input: Array)

```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 190.8064244738519 < 202.01071685333133.
IsChangePoint: Marked as a change because one of 5/9/2022 11:56:12 AM, 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/20/2022 2:50:37 PM, 6/23/2022 8:35:19 AM, 7/6/2022 7:05:00 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.744249661882428 (T) = (0 -191.6575484776794) / Math.Sqrt((97.09124714430635 / (299)) + (13.517897102523662 / (38))) is greater than 1.967070609662329 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (38) - 2, .975) and 0.0709527004728566 = (206.29471564604646 - 191.6575484776794) / 206.29471564604646 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereAny_LastElementMatches(input: Array)

```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 189.3994378129665 < 200.1632975454815.
IsChangePoint: Marked as a change because one of 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/20/2022 2:50:37 PM, 6/23/2022 8:35:19 AM, 7/6/2022 7:05:00 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 16.447129484058397 (T) = (0 -189.49620960031118) / Math.Sqrt((127.59302505495886 / (299)) + (14.950288541313837 / (37))) is greater than 1.9670919629190173 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (37) - 2, .975) and 0.07331119129409587 = (204.4874264370771 - 189.49620960031118) / 204.4874264370771 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.SelectToArray(input: Range)

```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 198.13144404289645 < 208.84294412580346.
IsChangePoint: Marked as a change because one of 5/11/2022 9:09:01 PM, 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 6/20/2022 2:50:37 PM, 6/23/2022 8:35:19 AM, 7/6/2022 7:05:00 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.4206221278458 (T) = (0 -199.18644618582366) / Math.Sqrt((99.95839092274393 / (299)) + (15.589943949489491 / (38))) is greater than 1.967070609662329 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (38) - 2, .975) and 0.07017134025069309 = (214.21844131963704 - 199.18644618582366) / 214.21844131963704 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Linq.Tests.Perf_Enumerable.WhereSelect(input: IEnumerable)

```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 998.0505764712163 < 1.0178900675814753.
IsChangePoint: Marked as a change because one of 5/9/2022 11:56:12 AM, 5/11/2022 11:37:12 AM, 5/20/2022 10:18:01 PM, 5/25/2022 1:42:32 AM, 5/31/2022 6:06:22 PM, 6/6/2022 10:12:27 PM, 7/6/2022 7:05:00 PM, 7/12/2022 6:44:07 AM falls between 7/3/2022 4:26:07 AM and 7/12/2022 6:44:07 AM.
IsImprovementStdDev: Marked as improvement because 17.784317128451345 (T) = (0 -995.7033264408022) / Math.Sqrt((1123.341453450884 / (299)) + (195.380404332929 / (38))) is greater than 1.967070609662329 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (38) - 2, .975) and 0.05058522481777478 = (1048.7548250443992 - 995.7033264408022) / 1048.7548250443992 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	x64
OS	ubuntu 18.04
Baseline	a4b5376ae65d81c71898801772655c79dea7cfc9
Compare	d344e72a84b98d84b3e34d37e9c59cf04930cf5b
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
List - Duration of single invocation	21.05 μs	19.61 μs	0.93	0.08	False
Span - Duration of single invocation	21.85 μs	15.96 μs	0.73	0.06	False
Array - Duration of single invocation	24.42 μs	19.91 μs	0.82	0.06	False
Queue - Duration of single invocation	25.20 μs	21.40 μs	0.85	0.37	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ImmutableArray - Duration of single invocation	20.42 μs	17.43 μs	0.85	0.26	False
Queue - Duration of single invocation	20.35 μs	17.18 μs	0.84	0.20	False
Array - Duration of single invocation	20.50 μs	15.58 μs	0.76	0.07	False
Stack - Duration of single invocation	44.17 μs	37.13 μs	0.84	0.03	False
Span - Duration of single invocation	16.87 μs	14.97 μs	0.89	0.08	False
ICollection - Duration of single invocation	18.71 μs	16.34 μs	0.87	0.07	False
List - Duration of single invocation	18.51 μs	14.35 μs	0.78	0.08	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Contains_ElementNotFound - Duration of single invocation	14.97 ns	12.71 ns	0.85	0.02	False
WhereFirst_LastElementMatches - Duration of single invocation	212.61 ns	190.81 ns	0.90	0.04	False
WhereAny_LastElementMatches - Duration of single invocation	210.91 ns	189.40 ns	0.90	0.03	False
SelectToArray - Duration of single invocation	218.62 ns	198.13 ns	0.91	0.03	False
WhereSelect - Duration of single invocation	1.07 μs	998.05 ns	0.93	0.05	False

Uh oh!

[Perf] Changes at 7/9/2022 11:03:07 AM #6728

Description

Run Information

Improvements in System.Collections.ContainsFalse<Int32>

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Collections.ContainsTrue<Int32>

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Linq.Tests.Perf_Enumerable

Repro

Payloads

Histogram

System.Linq.Tests.Perf_Enumerable.Contains_ElementNotFound(input: ICollection)

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

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