[Perf] Changes at 5/30/2022 8:02:30 PM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [486b4d1a36aef5bbe6a77bb2c3412772e712961e](https://github.com/dotnet/runtime/commit/486b4d1a36aef5bbe6a77bb2c3412772e712961e)
Compare | [afacf6a99e1b98331af958caec638bd93dc46ffe](https://github.com/dotnet/runtime/commit/afacf6a99e1b98331af958caec638bd93dc46ffe)
Diff | [Diff](https://github.com/dotnet/runtime/compare/486b4d1a36aef5bbe6a77bb2c3412772e712961e...afacf6a99e1b98331af958caec638bd93dc46ffe)


### Regressions in System.Memory.Span&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.Span(Byte).SequenceEqual(Size%3a%20512).html>) | 37.08 ns | 45.06 ns | 1.22 | 0.57 | False | | |
[EndsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.Span(Byte).EndsWith(Size%3a%20512).html>) | 18.04 ns | 26.80 ns | 1.49 | 0.48 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Span(Byte)_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Span(Byte)_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Span(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\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-1db3aded-dc08-486f-acff-de16506b77877df495866da49a088/d5c9b047-59ee-4321-ae29-e55615b18ed5.zip?sv=2019-07-07&se=2022-06-29T11%3A24%3A17Z&sr=c&sp=rl&sig=MUDcTyOp0VbhB%2BK9Y8HMFW3yGCaIHVic1q2da5%2Fw2Ao%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1408338e-1663-4b24-ac02-df85c4082f5b3ebe0eba0704d098e/1137f431-4c5b-462a-ac0e-b96572adc0d8.zip?sv=2019-07-07&se=2022-06-30T06%3A25%3A19Z&sr=c&sp=rl&sig=JMTmGd6H67Zjl6XHX0yCZvfIGFbnluwPBqaDqaWg2lA%3D>)
### Histogram

#### System.Memory.Span&lt;Byte&gt;.SequenceEqual(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 45.06174756628269 > 41.958255508755855.
IsChangePoint: Marked as a change because one of 3/22/2022 12:26:23 PM, 4/3/2022 4:51:57 PM, 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -6.4980369363118236 (T) = (0 -46.08692775655312) / Math.Sqrt((11.598757652991601 / (35)) + (9.469691475620555 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.1988203431081291 = (38.44356497743904 - 46.08692775655312) / 38.44356497743904 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.Span&lt;Byte&gt;.EndsWith(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 26.802941449421375 > 18.837351561927637.
IsChangePoint: Marked as a change because one of 5/11/2022 7:18:06 PM, 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -8.405727835826475 (T) = (0 -28.432927701587342) / Math.Sqrt((17.050773127924558 / (35)) + (4.018919597645898 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.39990737674085497 = (20.31057780964228 - 28.432927701587342) / 20.31057780964228 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [486b4d1a36aef5bbe6a77bb2c3412772e712961e](https://github.com/dotnet/runtime/commit/486b4d1a36aef5bbe6a77bb2c3412772e712961e)
Compare | [afacf6a99e1b98331af958caec638bd93dc46ffe](https://github.com/dotnet/runtime/commit/afacf6a99e1b98331af958caec638bd93dc46ffe)
Diff | [Diff](https://github.com/dotnet/runtime/compare/486b4d1a36aef5bbe6a77bb2c3412772e712961e...afacf6a99e1b98331af958caec638bd93dc46ffe)


### Regressions in System.Tests.Perf_DateTimeOffset

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Tests.Perf_DateTimeOffset.ToString(format%3a%20%22o%22).html>) | 109.29 ns | 119.80 ns | 1.10 | 0.21 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_DateTimeOffset_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Tests.Perf_DateTimeOffset.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_DateTimeOffset*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1db3aded-dc08-486f-acff-de16506b77877df495866da49a088/d5c9b047-59ee-4321-ae29-e55615b18ed5.zip?sv=2019-07-07&se=2022-06-29T11%3A24%3A17Z&sr=c&sp=rl&sig=MUDcTyOp0VbhB%2BK9Y8HMFW3yGCaIHVic1q2da5%2Fw2Ao%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1408338e-1663-4b24-ac02-df85c4082f5b3ebe0eba0704d098e/1137f431-4c5b-462a-ac0e-b96572adc0d8.zip?sv=2019-07-07&se=2022-06-30T06%3A25%3A19Z&sr=c&sp=rl&sig=JMTmGd6H67Zjl6XHX0yCZvfIGFbnluwPBqaDqaWg2lA%3D>)
### Histogram

#### System.Tests.Perf_DateTimeOffset.ToString(format: "o")

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 119.80125038160551 > 118.40146029074235.
IsChangePoint: Marked as a change because one of 4/14/2022 10:59:17 PM, 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -4.8241602028968265 (T) = (0 -123.00904044674265) / Math.Sqrt((14.58988274976727 / (35)) + (13.606232354573587 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.05760156993481805 = (116.30943442559746 - 123.00904044674265) / 116.30943442559746 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [486b4d1a36aef5bbe6a77bb2c3412772e712961e](https://github.com/dotnet/runtime/commit/486b4d1a36aef5bbe6a77bb2c3412772e712961e)
Compare | [afacf6a99e1b98331af958caec638bd93dc46ffe](https://github.com/dotnet/runtime/commit/afacf6a99e1b98331af958caec638bd93dc46ffe)
Diff | [Diff](https://github.com/dotnet/runtime/compare/486b4d1a36aef5bbe6a77bb2c3412772e712961e...afacf6a99e1b98331af958caec638bd93dc46ffe)


### Regressions in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>) | 105.88 ns | 122.95 ns | 1.16 | 0.42 | False | | |
[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20IgnoreCase%2c%20False)).html>) | 1.37 μs | 1.47 μs | 1.07 | 0.05 | False | | |
[IndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(%2c%20IgnoreCase%2c%20False)).html>) | 1.35 μs | 1.46 μs | 1.09 | 0.04 | False | | |
[IsSuffix_DifferentLastChar - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>) | 199.00 ns | 229.35 ns | 1.15 | 0.25 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1db3aded-dc08-486f-acff-de16506b77877df495866da49a088/d5c9b047-59ee-4321-ae29-e55615b18ed5.zip?sv=2019-07-07&se=2022-06-29T11%3A24%3A17Z&sr=c&sp=rl&sig=MUDcTyOp0VbhB%2BK9Y8HMFW3yGCaIHVic1q2da5%2Fw2Ao%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1408338e-1663-4b24-ac02-df85c4082f5b3ebe0eba0704d098e/1137f431-4c5b-462a-ac0e-b96572adc0d8.zip?sv=2019-07-07&se=2022-06-30T06%3A25%3A19Z&sr=c&sp=rl&sig=JMTmGd6H67Zjl6XHX0yCZvfIGFbnluwPBqaDqaWg2lA%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, OrdinalIgnoreCase, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 122.94581374994831 > 111.36901042141324.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -16.208659837381624 (T) = (0 -123.29210492483091) / Math.Sqrt((22.78707133346674 / (35)) + (3.0110607952242603 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.15010867935959676 = (107.20039517785605 - 123.29210492483091) / 107.20039517785605 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.4650698761268908 > 1.4429595939916373.
IsChangePoint: Marked as a change because one of 5/11/2022 9:40:50 AM, 5/31/2022 10:47:41 AM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -17.216019143276824 (T) = (0 -1453.8714104609878) / Math.Sqrt((265.16797471754535 / (38)) + (85.88916264323159 / (6))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (38) + (6) - 2, .025) and -0.057800075344225446 = (1374.429293728188 - 1453.8714104609878) / 1374.429293728188 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 1.463692586585138 > 1.4146869995546683.
IsChangePoint: Marked as a change because one of 5/11/2022 7:18:06 PM, 5/18/2022 4:10:31 AM, 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -6.194208403561538 (T) = (0 -1436.7330071103509) / Math.Sqrt((355.98044295006343 / (35)) + (1206.3006873794677 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.05459919688485606 = (1362.3498020425832 - 1436.7330071103509) / 1362.3498020425832 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, OrdinalIgnoreCase, False))

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 229.3486096113699 > 209.52285727169405.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -15.011214601621642 (T) = (0 -228.09060658056262) / Math.Sqrt((19.257547242145574 / (35)) + (20.852167233213496 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.12541331676517625 = (202.67274536627417 - 228.09060658056262) / 202.67274536627417 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [486b4d1a36aef5bbe6a77bb2c3412772e712961e](https://github.com/dotnet/runtime/commit/486b4d1a36aef5bbe6a77bb2c3412772e712961e)
Compare | [afacf6a99e1b98331af958caec638bd93dc46ffe](https://github.com/dotnet/runtime/commit/afacf6a99e1b98331af958caec638bd93dc46ffe)
Diff | [Diff](https://github.com/dotnet/runtime/compare/486b4d1a36aef5bbe6a77bb2c3412772e712961e...afacf6a99e1b98331af958caec638bd93dc46ffe)


### Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryWriteBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address%3a%20143.24.20.36).html>) | 1.54 ns | 7.32 ns | 4.75 | 0.72 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Net.Primitives.Tests.IPAddressPerformanceTests_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Net.Primitives.Tests.IPAddressPerformanceTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Net.Primitives.Tests.IPAddressPerformanceTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1db3aded-dc08-486f-acff-de16506b77877df495866da49a088/d5c9b047-59ee-4321-ae29-e55615b18ed5.zip?sv=2019-07-07&se=2022-06-29T11%3A24%3A17Z&sr=c&sp=rl&sig=MUDcTyOp0VbhB%2BK9Y8HMFW3yGCaIHVic1q2da5%2Fw2Ao%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1408338e-1663-4b24-ac02-df85c4082f5b3ebe0eba0704d098e/1137f431-4c5b-462a-ac0e-b96572adc0d8.zip?sv=2019-07-07&se=2022-06-30T06%3A25%3A19Z&sr=c&sp=rl&sig=JMTmGd6H67Zjl6XHX0yCZvfIGFbnluwPBqaDqaWg2lA%3D>)
### Histogram

#### System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 143.24.20.36)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 7.315948877958643 > 1.6170291583684282.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -7.526027501568083 (T) = (0 -7.530726040732879) / Math.Sqrt((2.106672665466187 / (35)) + (3.192432394932188 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -1.806856751271793 = (2.6829748391401487 - 7.530726040732879) / 2.6829748391401487 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 18.04
Baseline | [486b4d1a36aef5bbe6a77bb2c3412772e712961e](https://github.com/dotnet/runtime/commit/486b4d1a36aef5bbe6a77bb2c3412772e712961e)
Compare | [afacf6a99e1b98331af958caec638bd93dc46ffe](https://github.com/dotnet/runtime/commit/afacf6a99e1b98331af958caec638bd93dc46ffe)
Diff | [Diff](https://github.com/dotnet/runtime/compare/486b4d1a36aef5bbe6a77bb2c3412772e712961e...afacf6a99e1b98331af958caec638bd93dc46ffe)


### Regressions in System.Memory.Constructors&lt;Byte&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ArrayAsMemory - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 18.04/System.Memory.Constructors(Byte).ArrayAsMemory.html>) | 2.88 ns | 4.18 ns | 1.45 | 0.70 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Constructors(Byte)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_02_2022/refs/heads/main_arm64_ubuntu%2018.04_Regression/System.Memory.Constructors(Byte).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Memory.Constructors&lt;Byte&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1db3aded-dc08-486f-acff-de16506b77877df495866da49a088/d5c9b047-59ee-4321-ae29-e55615b18ed5.zip?sv=2019-07-07&se=2022-06-29T11%3A24%3A17Z&sr=c&sp=rl&sig=MUDcTyOp0VbhB%2BK9Y8HMFW3yGCaIHVic1q2da5%2Fw2Ao%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1408338e-1663-4b24-ac02-df85c4082f5b3ebe0eba0704d098e/1137f431-4c5b-462a-ac0e-b96572adc0d8.zip?sv=2019-07-07&se=2022-06-30T06%3A25%3A19Z&sr=c&sp=rl&sig=JMTmGd6H67Zjl6XHX0yCZvfIGFbnluwPBqaDqaWg2lA%3D>)
### Histogram

#### System.Memory.Constructors&lt;Byte&gt;.ArrayAsMemory

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 4.1845164717833505 > 3.2290531190329466.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 6/2/2022 5:13:37 AM falls between 5/24/2022 3:42:52 PM and 6/2/2022 5:13:37 AM.
IsRegressionStdDev: Marked as regression because -4.147465424628626 (T) = (0 -3.900546656234951) / Math.Sqrt((0.09560300997426746 / (35)) + (0.2623833906569381 / (9))) is less than -2.0180817028167235 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (35) + (9) - 2, .025) and -0.23436691968515952 = (3.1599572169593086 - 3.900546656234951) / 3.1599572169593086 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	arm64
OS	ubuntu 18.04
Baseline	486b4d1a36aef5bbe6a77bb2c3412772e712961e
Compare	afacf6a99e1b98331af958caec638bd93dc46ffe
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
SequenceEqual - Duration of single invocation	37.08 ns	45.06 ns	1.22	0.57	False
EndsWith - Duration of single invocation	18.04 ns	26.80 ns	1.49	0.48	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IsPrefix_FirstHalf - Duration of single invocation	105.88 ns	122.95 ns	1.16	0.42	False
LastIndexOf_Word_NotFound - Duration of single invocation	1.37 μs	1.47 μs	1.07	0.05	False
IndexOf_Word_NotFound - Duration of single invocation	1.35 μs	1.46 μs	1.09	0.04	False
IsSuffix_DifferentLastChar - Duration of single invocation	199.00 ns	229.35 ns	1.15	0.25	False

[Perf] Changes at 5/30/2022 8:02:30 PM #5733

Description

Run Information

Regressions in System.Memory.Span<Byte>

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Docs

Regressions in System.Tests.Perf_DateTimeOffset

Repro

Payloads

Histogram

System.Tests.Perf_DateTimeOffset.ToString(format: "o")

Description of detection logic

Docs

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

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

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Net.Primitives.Tests.IPAddressPerformanceTests

Repro

Payloads

Histogram

System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 143.24.20.36)

Description of detection logic

Docs

Run Information

Regressions in System.Memory.Constructors<Byte>

Repro

Payloads

Histogram

System.Memory.Constructors<Byte>.ArrayAsMemory

Description of detection logic

Docs

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