[Perf] Alpine/x64: 12 Regressions on 10/25/2022 12:27:43 PM

### Run Information

Architecture | x64
-- | --
OS | alpine 3.15
Baseline | [5108757b997c59ab8ba1fc5309ab0d4e730e2b77](https://github.com/dotnet/runtime/commit/5108757b997c59ab8ba1fc5309ab0d4e730e2b77)
Compare | [f4b715f1cfadcbf85486f369724528c051be5733](https://github.com/dotnet/runtime/commit/f4b715f1cfadcbf85486f369724528c051be5733)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5108757b997c59ab8ba1fc5309ab0d4e730e2b77...f4b715f1cfadcbf85486f369724528c051be5733)


### Regressions in System.Text.Json.Tests.Perf_Basic

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteBasicUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20True%2c%20DataSize%3a%2010).html>) | 509.82 ns | 550.12 ns | 1.08 | 0.00 | False | | |
[WriteBasicUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20True%2c%20DataSize%3a%2010).html>) | 621.26 ns | 653.40 ns | 1.05 | 0.00 | False | | |
[WriteBasicUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20False%2c%20DataSize%3a%2010).html>) | 549.05 ns | 587.87 ns | 1.07 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Basic_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Basic_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Basic_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Basic.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Tests.Perf_Basic*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9d10d608-6ef9-4106-b598-2db7228890dae67a4135ee24f3e8b/3d59f44c-8bf6-4449-ac1b-5a8b974a96da.zip?sv=2021-08-06&se=2022-11-24T06%3A00%3A03Z&sr=c&sp=rl&sig=8tCqOuxL3jwTKo4IkhNgAtmaOALB0qIbQScsoglA7JQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-dde57712-e62c-47a1-a0d8-4f92f4fef7ce13a950f73604c6ba2/09306016-7890-4a39-837a-1528d4d07eec.zip?sv=2021-08-06&se=2022-11-24T17%3A01%3A05Z&sr=c&sp=rl&sig=uN5BzHDswEVqwBdzZHRZ5fgjhvisN6HUhp%2BqCk0YwQA%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_01_2022/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted- False, SkipValidation- False, DataSize- 10).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: False, SkipValidation: True, DataSize: 10)

```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.
IsRegressionWindowed: Marked as regression because 550.1172035126156 > 535.7870679080074.
IsChangePoint: Marked as a change because one of 7/30/2022 7:04:11 AM, 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -46.67318390743765 (T) = (0 -551.5146968619168) / Math.Sqrt((10.003887806556584 / (19)) + (7.06367561163948 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.07933443187079259 = (510.97665429424455 - 551.5146968619168) / 510.97665429424455 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: True, SkipValidation: True, DataSize: 10)

```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.
IsRegressionWindowed: Marked as regression because 653.3950003065668 > 653.0363814629567.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -25.74083084114781 (T) = (0 -656.8083463537015) / Math.Sqrt((2.0147328685117167 / (19)) + (51.69791008783512 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.055068900461402386 = (622.5264966737872 - 656.8083463537015) / 622.5264966737872 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: False, SkipValidation: False, DataSize: 10)

```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.
IsRegressionWindowed: Marked as regression because 587.8693327702701 > 576.4293926581229.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -34.24246398408459 (T) = (0 -587.5633815082118) / Math.Sqrt((3.849475694981683 / (19)) + (32.55877334196741 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.06978511310862794 = (549.2349578513433 - 587.5633815082118) / 549.2349578513433 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.
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 | alpine 3.15
Baseline | [5108757b997c59ab8ba1fc5309ab0d4e730e2b77](https://github.com/dotnet/runtime/commit/5108757b997c59ab8ba1fc5309ab0d4e730e2b77)
Compare | [f4b715f1cfadcbf85486f369724528c051be5733](https://github.com/dotnet/runtime/commit/f4b715f1cfadcbf85486f369724528c051be5733)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5108757b997c59ab8ba1fc5309ab0d4e730e2b77...f4b715f1cfadcbf85486f369724528c051be5733)


### Regressions in System.Text.Json.Tests.Perf_Deep

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteDeepUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20True).html>) | 22.60 ms | 24.06 ms | 1.06 | 0.00 | False | | |
[WriteDeepUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20False).html>) | 22.60 ms | 24.39 ms | 1.08 | 0.00 | False | | |
[WriteDeepUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted%3a%20False%2c%20SkipValidation%3a%20False).html>) | 3.35 ms | 3.73 ms | 1.11 | 0.06 | False | | |
[WriteDeepUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20False).html>) | 3.22 ms | 3.67 ms | 1.14 | 0.00 | False | | |
[WriteDeepUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted%3a%20True%2c%20SkipValidation%3a%20False).html>) | 22.69 ms | 24.30 ms | 1.07 | 0.00 | False | | |
[WriteDeepUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20True).html>) | 3.03 ms | 3.57 ms | 1.18 | 0.00 | False | | |
[WriteDeepUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted%3a%20False%2c%20SkipValidation%3a%20True).html>) | 3.04 ms | 3.58 ms | 1.18 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep_7.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Deep.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Tests.Perf_Deep*'
```

### Related Issues

#### Regressions

#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9d10d608-6ef9-4106-b598-2db7228890dae67a4135ee24f3e8b/3d59f44c-8bf6-4449-ac1b-5a8b974a96da.zip?sv=2021-08-06&se=2022-11-24T06%3A00%3A03Z&sr=c&sp=rl&sig=8tCqOuxL3jwTKo4IkhNgAtmaOALB0qIbQScsoglA7JQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-dde57712-e62c-47a1-a0d8-4f92f4fef7ce13a950f73604c6ba2/09306016-7890-4a39-837a-1528d4d07eec.zip?sv=2021-08-06&se=2022-11-24T17%3A01%3A05Z&sr=c&sp=rl&sig=uN5BzHDswEVqwBdzZHRZ5fgjhvisN6HUhp%2BqCk0YwQA%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_01_2022/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted- False, SkipValidation- True).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted: True, SkipValidation: True)

```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.
IsRegressionWindowed: Marked as regression because 24.059880390476188 > 23.56634000291667.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -49.027307853491756 (T) = (0 -24137092.801931098) / Math.Sqrt((16987438810.80464 / (19)) + (11625683975.086817 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.07800479942706817 = (22390524.434361834 - 24137092.801931098) / 22390524.434361834 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted: True, SkipValidation: 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.
IsRegressionWindowed: Marked as regression because 24.392714276190475 > 23.733828522727276.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -55.876240121482844 (T) = (0 -24358740.89758613) / Math.Sqrt((7938922058.475235 / (19)) + (17813472249.97746 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.07789443244543312 = (22598447.644193817 - 24358740.89758613) / 22598447.644193817 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted: False, SkipValidation: 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.
IsRegressionWindowed: Marked as regression because 3.7283577345415786 > 3.3726054487012993.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -29.19997567646703 (T) = (0 -3735565.73006812) / Math.Sqrt((4632810528.394419 / (19)) + (444560781.5508781 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.14363821953902903 = (3266387.6270013344 - 3735565.73006812) / 3266387.6270013344 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted: False, SkipValidation: 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.
IsRegressionWindowed: Marked as regression because 3.6683956819747414 > 3.367251755141701.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -94.51256350283069 (T) = (0 -3682309.9935711706) / Math.Sqrt((376620662.3032119 / (19)) + (215313835.12290284 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.15312719451599288 = (3193325.082509014 - 3682309.9935711706) / 3193325.082509014 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted: True, SkipValidation: 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.
IsRegressionWindowed: Marked as regression because 24.29748702857143 > 23.80486186166667.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -58.447831817004655 (T) = (0 -24405963.4398896) / Math.Sqrt((10410309944.617916 / (19)) + (8626087413.98141 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.07392322443488808 = (22725985.32612266 - 24405963.4398896) / 22725985.32612266 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted: False, SkipValidation: True)

```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.
IsRegressionWindowed: Marked as regression because 3.572605988405797 > 3.186866617519949.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -81.56415460730825 (T) = (0 -3561501.3120536036) / Math.Sqrt((511560300.07826686 / (19)) + (397402298.40976495 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.1687399988541845 = (3047299.926027386 - 3561501.3120536036) / 3047299.926027386 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.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Json.Tests.Perf_Deep.WriteDeepUtf8(Formatted: False, SkipValidation: True)

```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.
IsRegressionWindowed: Marked as regression because 3.578244580612245 > 3.1988951076490517.
IsChangePoint: Marked as a change because one of 8/4/2022 9:24:57 PM, 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -65.83501702998073 (T) = (0 -3537020.3674765625) / Math.Sqrt((622064326.354422 / (19)) + (632217194.8969885 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.15697520161453457 = (3057127.2076883973 - 3537020.3674765625) / 3057127.2076883973 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.
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 | alpine 3.15
Baseline | [5108757b997c59ab8ba1fc5309ab0d4e730e2b77](https://github.com/dotnet/runtime/commit/5108757b997c59ab8ba1fc5309ab0d4e730e2b77)
Compare | [f4b715f1cfadcbf85486f369724528c051be5733](https://github.com/dotnet/runtime/commit/f4b715f1cfadcbf85486f369724528c051be5733)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5108757b997c59ab8ba1fc5309ab0d4e730e2b77...f4b715f1cfadcbf85486f369724528c051be5733)


### Regressions in System.Text.Json.Tests.Perf_Strings

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20True%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20OneEscaped).html>) | 9.71 ms | 10.49 ms | 1.08 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Strings_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Tests.Perf_Strings.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Tests.Perf_Strings*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/x64: 6 Regressions on 10/25/2022 12:27:43 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9307>)
* [[Perf] Linux/x64: 8 Regressions on 10/25/2022 12:27:43 PM](<https://github.com/dotnet/runtime/issues/77731>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9d10d608-6ef9-4106-b598-2db7228890dae67a4135ee24f3e8b/3d59f44c-8bf6-4449-ac1b-5a8b974a96da.zip?sv=2021-08-06&se=2022-11-24T06%3A00%3A03Z&sr=c&sp=rl&sig=8tCqOuxL3jwTKo4IkhNgAtmaOALB0qIbQScsoglA7JQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-dde57712-e62c-47a1-a0d8-4f92f4fef7ce13a950f73604c6ba2/09306016-7890-4a39-837a-1528d4d07eec.zip?sv=2021-08-06&se=2022-11-24T17%3A01%3A05Z&sr=c&sp=rl&sig=uN5BzHDswEVqwBdzZHRZ5fgjhvisN6HUhp%2BqCk0YwQA%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_01_2022/refs/heads/main_x64_alpine 3.15/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted- True, SkipValidation- False, Escaped- OneEscaped).txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

```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.
IsRegressionWindowed: Marked as regression because 10.487391541666666 > 10.184434033541669.
IsChangePoint: Marked as a change because one of 9/11/2022 6:59:01 PM, 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -22.641209827021246 (T) = (0 -10399594.471508106) / Math.Sqrt((7950325571.005873 / (19)) + (14177145552.226562 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.06886524353409886 = (9729565.56911034 - 10399594.471508106) / 9729565.56911034 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.
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 | alpine 3.15
Baseline | [5108757b997c59ab8ba1fc5309ab0d4e730e2b77](https://github.com/dotnet/runtime/commit/5108757b997c59ab8ba1fc5309ab0d4e730e2b77)
Compare | [f4b715f1cfadcbf85486f369724528c051be5733](https://github.com/dotnet/runtime/commit/f4b715f1cfadcbf85486f369724528c051be5733)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5108757b997c59ab8ba1fc5309ab0d4e730e2b77...f4b715f1cfadcbf85486f369724528c051be5733)


### Regressions in System.Text.Json.Serialization.Tests.WriteJson&lt;LargeStructWithProperties&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[SerializeToWriter - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Text.Json.Serialization.Tests.WriteJson(LargeStructWithProperties).SerializeToWriter.html>) | 494.40 ns | 524.15 ns | 1.06 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Serialization.Tests.WriteJson(LargeStructWithProperties)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_01_2022/refs/heads/main_x64_alpine%203.15_Regression/System.Text.Json.Serialization.Tests.WriteJson(LargeStructWithProperties).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Json.Serialization.Tests.WriteJson&lt;LargeStructWithProperties&gt;*'
```

### Related Issues

#### Regressions

* [[Perf] Windows/x64: 6 Regressions on 10/25/2022 12:27:43 PM](<https://github.com/dotnet/perf-autofiling-issues/issues/9307>)
* [[Perf] Linux/x64: 8 Regressions on 10/25/2022 12:27:43 PM](<https://github.com/dotnet/runtime/issues/77731>)
#### Improvements

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9d10d608-6ef9-4106-b598-2db7228890dae67a4135ee24f3e8b/3d59f44c-8bf6-4449-ac1b-5a8b974a96da.zip?sv=2021-08-06&se=2022-11-24T06%3A00%3A03Z&sr=c&sp=rl&sig=8tCqOuxL3jwTKo4IkhNgAtmaOALB0qIbQScsoglA7JQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-dde57712-e62c-47a1-a0d8-4f92f4fef7ce13a950f73604c6ba2/09306016-7890-4a39-837a-1528d4d07eec.zip?sv=2021-08-06&se=2022-11-24T17%3A01%3A05Z&sr=c&sp=rl&sig=uN5BzHDswEVqwBdzZHRZ5fgjhvisN6HUhp%2BqCk0YwQA%3D>)
### Histogram

### Edge Detector Info

[Collection Data](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/reports/11_01_2022/refs/heads/main_x64_alpine 3.15/System.Text.Json.Serialization.Tests.WriteJson-LargeStructWithProperties-.SerializeToWriter.txt?sv=2018-03-28&sr=c&sig=JoytaT70%2ByX0ce090BDZwAg8TDntVqLeANIlSNxVryw%3D&se=2022-11-24T00%3A17%3A57Z&sp=racwdl>)
#### System.Text.Json.Serialization.Tests.WriteJson&lt;LargeStructWithProperties&gt;.SerializeToWriter

```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.
IsRegressionWindowed: Marked as regression because 524.1469543664125 > 519.1655589264567.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 11/1/2022 2:33:16 AM falls between 10/23/2022 1:14:54 PM and 11/1/2022 2:33:16 AM.
IsRegressionStdDev: Marked as regression because -21.51111910712325 (T) = (0 -526.3168587793095) / Math.Sqrt((40.08637700983236 / (19)) + (13.56612273236627 / (31))) is less than -2.010634757623041 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (19) + (31) - 2, .025) and -0.06978516307090267 = (491.9836963044762 - 526.3168587793095) / 491.9836963044762 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.
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	alpine 3.15
Baseline	5108757b997c59ab8ba1fc5309ab0d4e730e2b77
Compare	f4b715f1cfadcbf85486f369724528c051be5733
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Edge Detector
WriteBasicUtf16 - Duration of single invocation	509.82 ns	550.12 ns	1.08	False
WriteBasicUtf16 - Duration of single invocation	621.26 ns	653.40 ns	1.05	False
WriteBasicUtf16 - Duration of single invocation	549.05 ns	587.87 ns	1.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
WriteDeepUtf16 - Duration of single invocation	22.60 ms	24.06 ms	1.06	0.00	False
WriteDeepUtf16 - Duration of single invocation	22.60 ms	24.39 ms	1.08	0.00	False
WriteDeepUtf8 - Duration of single invocation	3.35 ms	3.73 ms	1.11	0.06	False
WriteDeepUtf16 - Duration of single invocation	3.22 ms	3.67 ms	1.14	0.00	False
WriteDeepUtf8 - Duration of single invocation	22.69 ms	24.30 ms	1.07	0.00	False
WriteDeepUtf16 - Duration of single invocation	3.03 ms	3.57 ms	1.18	0.00	False
WriteDeepUtf8 - Duration of single invocation	3.04 ms	3.58 ms	1.18	0.06	False

[Perf] Alpine/x64: 12 Regressions on 10/25/2022 12:27:43 PM #9318

Description

Run Information

Regressions in System.Text.Json.Tests.Perf_Basic

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Json.Tests.Perf_Basic.WriteBasicUtf16(Formatted: False, SkipValidation: True, DataSize: 10)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Regressions in System.Text.Json.Tests.Perf_Deep

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted: True, SkipValidation: True)

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

Regressions in System.Text.Json.Tests.Perf_Strings

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: True, SkipValidation: False, Escaped: OneEscaped)

Description of detection logic

Docs

Run Information

Regressions in System.Text.Json.Serialization.Tests.WriteJson<LargeStructWithProperties>

Repro

Related Issues

Regressions

Improvements

Payloads

Histogram

Edge Detector Info

System.Text.Json.Serialization.Tests.WriteJson<LargeStructWithProperties>.SerializeToWriter

Description of detection logic

Docs

Metadata

Metadata

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