[Perf] Linux/x64: 11 Regressions on 1/15/2023 6:48:05 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### Regressions in System.Tests.Perf_Int32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryFormat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Int32.TryFormat(value%3a%2012345).html>) | 359.97 ns | 492.86 ns | 1.37 | 0.17 | False | | |
[ToString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Int32.ToString(value%3a%20-2147483648).html>) | 651.85 ns | 729.21 ns | 1.12 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Int32_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Int32_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Int32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int32*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Tests.Perf_Int32.TryFormat(value: 12345)

```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 492.8608440749241 > 375.545925450121.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/12/2023 3:42:01 AM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -25.84457571190944 (T) = (0 -502.44390338617205) / Math.Sqrt((983.1173759194976 / (47)) + (178.30350063196926 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.4709948723134669 = (341.56740641520196 - 502.44390338617205) / 341.56740641520196 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.Tests.Perf_Int32.ToString(value: -2147483648)

```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 729.2063155758293 > 684.3506826283758.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/12/2023 3:42:01 AM, 1/15/2023 7:15:22 AM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -10.20566597903779 (T) = (0 -722.3251669528804) / Math.Sqrt((5026.290572474745 / (46)) + (141.95231641833035 / (10))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (10) - 2, .025) and -0.18622758522786528 = (608.9262936961015 - 722.3251669528804) / 608.9262936961015 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[WriteBasicUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted%3a%20True%2c%20SkipValidation%3a%20False%2c%20DataSize%3a%20100000).html>) | 71.44 ms | 90.50 ms | 1.27 | 0.05 | False | | |
[WriteBasicUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted%3a%20False%2c%20SkipValidation%3a%20False%2c%20DataSize%3a%20100000).html>) | 52.14 ms | 75.38 ms | 1.45 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Text.Json.Tests.Perf_Basic_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Text.Json.Tests.Perf_Basic_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Text.Json.Tests.Perf_Basic.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Basic*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: True, SkipValidation: False, DataSize: 100000)

```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 90.49589283928572 > 73.034914943125.
IsChangePoint: Marked as a change because one of 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -43.82252103494706 (T) = (0 -91814303.24142857) / Math.Sqrt((1044661612834.847 / (46)) + (2194022181497.7998 / (10))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (10) - 2, .025) and -0.30693774754127945 = (70251474.038574 - 91814303.24142857) / 70251474.038574 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.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: False, SkipValidation: False, DataSize: 100000)

```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 75.38498208928571 > 54.62824496634616.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -65.4121511111436 (T) = (0 -74875062.99024725) / Math.Sqrt((1754074128119.2312 / (46)) + (757653307401.3975 / (10))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (10) - 2, .025) and -0.41810652770680706 = (52799321.86147276 - 74875062.99024725) / 52799321.86147276 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### Regressions in System.Tests.Perf_Version

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryFormat2 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Version.TryFormat2.html>) | 760.17 ns | 1.12 μs | 1.47 | 0.12 | False | | |
[ToString2 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Version.ToString2.html>) | 1.10 μs | 1.43 μs | 1.30 | 0.04 | False | | |
[ToString3 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Version.ToString3.html>) | 1.47 μs | 1.90 μs | 1.30 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Version_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Version_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Version_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Version.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Version*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Tests.Perf_Version.TryFormat2

```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 1.1184515228533525 > 724.2589986636451.
IsChangePoint: Marked as a change because one of 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -86.24907913695705 (T) = (0 -1087.2573937011782) / Math.Sqrt((226.79804288115042 / (46)) + (159.77626131237326 / (10))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (10) - 2, .025) and -0.5691834273522646 = (692.881007248301 - 1087.2573937011782) / 692.881007248301 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.Tests.Perf_Version.ToString2

```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 1.4267705436460205 > 1.1659301484824813.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/12/2023 3:42:01 AM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -28.963582231678842 (T) = (0 -1402.8259962134505) / Math.Sqrt((4483.3668800814485 / (46)) + (341.5761509150203 / (10))) is less than -2.0048792881871513 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (46) + (10) - 2, .025) and -0.3103953822855898 = (1070.5364313529885 - 1402.8259962134505) / 1070.5364313529885 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.Tests.Perf_Version.ToString3

```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 1.9020946846902582 > 1.5187384945824778.
IsChangePoint: Marked as a change because one of 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -46.43041809205259 (T) = (0 -1902.88170383561) / Math.Sqrt((5319.790771938327 / (47)) + (79.24576453853257 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.3670995365588348 = (1391.9116003984668 - 1902.88170383561) / 1391.9116003984668 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[FormatterInt64 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value%3a%209223372036854775807).html>) | 777.56 ns | 981.08 ns | 1.26 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Buffers.Text.Tests.Utf8FormatterTests_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Buffers.Text.Tests.Utf8FormatterTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8FormatterTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value: 9223372036854775807)

```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 981.0816089963674 > 798.1077434198894.
IsChangePoint: Marked as a change because one of 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -32.89379017734937 (T) = (0 -998.0796408524504) / Math.Sqrt((133.1485354529759 / (47)) + (450.97475587610467 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.2956183978865858 = (770.3500062059315 - 998.0796408524504) / 770.3500062059315 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### 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_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Text.Json.Tests.Perf_Deep.WriteDeepUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20True).html>) | 175.98 ms | 200.27 ms | 1.14 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Text.Json.Tests.Perf_Deep_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Text.Json.Tests.Perf_Deep.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Deep*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### 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.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 200.27485742857144 > 188.79953076923078.
IsChangePoint: Marked as a change because one of 10/25/2022 8:17:52 AM, 12/9/2022 1:52:32 PM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -21.08812700573864 (T) = (0 -202543721.80666667) / Math.Sqrt((12700212976706.117 / (47)) + (10186352047534.66 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.1340451753872421 = (178602868.9179019 - 202543721.80666667) / 178602868.9179019 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToStringD - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Numerics.Tests.Perf_BigInteger.ToStringD(numberString%3a%20123).html>) | 659.78 ns | 1.03 μs | 1.56 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Numerics.Tests.Perf_BigInteger_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Numerics.Tests.Perf_BigInteger.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_BigInteger*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Numerics.Tests.Perf_BigInteger.ToStringD(numberString: 123)

```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 1.0287410134526986 > 712.3003201155551.
IsChangePoint: Marked as a change because one of 12/1/2022 11:48:13 PM, 12/9/2022 1:52:32 PM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -24.12521454824905 (T) = (0 -1013.3107592956) / Math.Sqrt((3672.7741414237175 / (47)) + (792.2529223974778 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.425858241708403 = (710.6672526446205 - 1013.3107592956) / 710.6672526446205 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 | x64
-- | --
OS | ubuntu 18.04
Baseline | [2eca2d319bf8d1247edf38facfdd501e0e2f0030](https://github.com/dotnet/runtime/commit/2eca2d319bf8d1247edf38facfdd501e0e2f0030)
Compare | [51a8dd5323721b363e61069575511f783e7ea6d3](https://github.com/dotnet/runtime/commit/51a8dd5323721b363e61069575511f783e7ea6d3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2eca2d319bf8d1247edf38facfdd501e0e2f0030...51a8dd5323721b363e61069575511f783e7ea6d3)


### Regressions in System.Tests.Perf_Int64

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryFormat - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_CompliationMode=wasm_RunKind=micro/System.Tests.Perf_Int64.TryFormat(value%3a%2012345).html>) | 388.84 ns | 566.44 ns | 1.46 | 0.16 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Int64_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_17_2023/refs/heads/main_x64_ubuntu%2018.04_CompliationMode=wasm_RunKind=micro_Regression/System.Tests.Perf_Int64.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int64*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-cdfed7f3-4bea-412d-a3f6-a39eddbc03464aa00bd57bb42c3b4/5e739b99-a723-4e52-b884-239c2597e3f9.zip?sv=2021-08-06&se=2023-02-14T10%3A17%3A27Z&sr=c&sp=rl&sig=lHT8ula2VvX33B7GabIFrtU5Vy9c7%2FCikrtcXJF1UJ0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fd1aed74-e85d-4ce0-a521-d0d988926a244b23d1260214c419c/64134110-aba8-4d8a-972e-c6d3a982460c.zip?sv=2021-08-06&se=2023-02-14T23%3A41%3A52Z&sr=c&sp=rl&sig=nZGpDN3SMjFQVIGF8ESNl%2F6vaLYZl2ROYP83wvrYQr8%3D>)
### Histogram

#### System.Tests.Perf_Int64.TryFormat(value: 12345)

```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 566.4432835672932 > 407.215650687202.
IsChangePoint: Marked as a change because one of 12/9/2022 1:52:32 PM, 1/15/2023 4:08:29 PM, 1/17/2023 11:08:46 AM falls between 1/8/2023 8:00:22 AM and 1/17/2023 11:08:46 AM.
IsRegressionStdDev: Marked as regression because -31.97460420023956 (T) = (0 -551.4386234994943) / Math.Sqrt((664.1440875497849 / (47)) + (155.45488516080795 / (10))) is less than -2.0040447832881556 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (47) + (10) - 2, .025) and -0.4617164935130571 = (377.254156976897 - 551.4386234994943) / 377.254156976897 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	x64
OS	ubuntu 18.04
Baseline	2eca2d319bf8d1247edf38facfdd501e0e2f0030
Compare	51a8dd5323721b363e61069575511f783e7ea6d3
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
TryFormat - Duration of single invocation	359.97 ns	492.86 ns	1.37	0.17	False
ToString - Duration of single invocation	651.85 ns	729.21 ns	1.12	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
WriteBasicUtf8 - Duration of single invocation	71.44 ms	90.50 ms	1.27	0.05	False
WriteBasicUtf8 - Duration of single invocation	52.14 ms	75.38 ms	1.45	0.05	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
TryFormat2 - Duration of single invocation	760.17 ns	1.12 μs	1.47	0.12	False
ToString2 - Duration of single invocation	1.10 μs	1.43 μs	1.30	0.04	False
ToString3 - Duration of single invocation	1.47 μs	1.90 μs	1.30	0.05	False

[Perf] Linux/x64: 11 Regressions on 1/15/2023 6:48:05 PM #11808

Description

Run Information

Regressions in System.Tests.Perf_Int32

Repro

Payloads

Histogram

System.Tests.Perf_Int32.TryFormat(value: 12345)

Description of detection logic

Description of detection logic

Docs

Regressions in System.Text.Json.Tests.Perf_Basic

Repro

Payloads

Histogram

System.Text.Json.Tests.Perf_Basic.WriteBasicUtf8(Formatted: True, SkipValidation: False, DataSize: 100000)

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_Version

Repro

Payloads

Histogram

System.Tests.Perf_Version.TryFormat2

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Repro

Payloads

Histogram

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterInt64(value: 9223372036854775807)

Description of detection logic

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Deep

Repro

Payloads

Histogram

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

Description of detection logic

Docs

Run Information

Regressions in System.Numerics.Tests.Perf_BigInteger

Repro

Payloads

Histogram

System.Numerics.Tests.Perf_BigInteger.ToStringD(numberString: 123)

Description of detection logic

Docs

Run Information

Regressions in System.Tests.Perf_Int64

Repro

Payloads

Histogram

System.Tests.Perf_Int64.TryFormat(value: 12345)

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

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