[Perf] ubuntu 20.04/arm64 : Improvement on 8/17/2022 8:19:48 PM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22%5cb%5cw%2bn%5cb%22%2c%20Options%3a%20NonBacktracking).html>) | 11.99 ms | 8.14 ms | 0.68 | 0.37 | False | | |
[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22.*%22%2c%20Options%3a%20None).html>) | 2.27 ms | 2.08 ms | 0.92 | 0.02 | False | | |
[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22Sherlock%7cHolmes%7cWatson%7cIrene%7cAdler%7cJohn%7cBaker%22%2c%20Options%3a%20NonBacktracking).html>) | 3.97 ms | 3.61 ms | 0.91 | 0.01 | False | | |
[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22%5b%5e%5cn%5d*%22%2c%20Options%3a%20Compiled).html>) | 1.35 ms | 1.21 ms | 0.90 | 0.25 | False | | |
[Count - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern%3a%20%22%5b%5e%5cn%5d*%22%2c%20Options%3a%20None).html>) | 2.26 ms | 2.08 ms | 0.92 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "\b\w+n\b", Options: NonBacktracking)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 8.140350635555556 < 10.936034000625.
IsChangePoint: Marked as a change because one of 7/8/2022 4:13:41 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 36.38991669162665 (T) = (0 -8129993.675402397) / Math.Sqrt((2655718792834.4224 / (299)) + (2981357838.433272 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.2977751207462495 = (11577478.832766628 - 8129993.675402397) / 11577478.832766628 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: ".*", Options: None)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 2.082560876111111 < 2.1577291751634196.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 20.79230936633837 (T) = (0 -2091570.6084863562) / Math.Sqrt((42661138908.864746 / (299)) + (48896209.08682551 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.10663135851060082 = (2341217.8482102845 - 2091570.6084863562) / 2341217.8482102845 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "Sherlock|Holmes|Watson|Irene|Adler|John|Baker", Options: NonBacktracking)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 3.6085610155279495 < 3.773360027834466.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 23.267964657242715 (T) = (0 -3618703.6930818213) / Math.Sqrt((170730977138.02744 / (299)) + (208338745.83819953 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.13382020411896337 = (4177774.303083402 - 3618703.6930818213) / 4177774.303083402 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "[^\n]*", Options: Compiled)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 1.2130365214743588 < 1.2827947300781248.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 7/26/2022 2:47:26 PM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 28.629384174202997 (T) = (0 -1210541.9332038152) / Math.Sqrt((18104043409.859066 / (299)) + (56187213.886717215 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.1572544029070228 = (1436426.292085701 - 1210541.9332038152) / 1436426.292085701 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "[^\n]*", Options: None)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 2.0834815116666667 < 2.149875799594156.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 21.50062714370003 (T) = (0 -2092129.3564027138) / Math.Sqrt((40951937570.25273 / (299)) + (17406235.741151232 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.10754389184698802 = (2344237.814375536 - 2092129.3564027138) / 2344237.814375536 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.Text.Perf_Utf8Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20EnglishMostlyAscii).html>) | 88.86 μs | 55.80 μs | 0.63 | 0.00 | False | | |
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetBytes(Input%3a%20Chinese).html>) | 234.96 μs | 177.85 μs | 0.76 | 0.00 | False | | |
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetBytes(Input%3a%20Greek).html>) | 246.18 μs | 196.73 μs | 0.80 | 0.00 | False | | |
[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20Greek).html>) | 44.24 μs | 27.80 μs | 0.63 | 0.00 | False | | |
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetBytes(Input%3a%20Cyrillic).html>) | 168.60 μs | 125.16 μs | 0.74 | 0.00 | False | | |
[GetBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetBytes(Input%3a%20EnglishMostlyAscii).html>) | 199.25 μs | 156.60 μs | 0.79 | 0.01 | False | | |
[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20Chinese).html>) | 40.48 μs | 24.37 μs | 0.60 | 0.00 | False | | |
[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20Cyrillic).html>) | 35.09 μs | 19.74 μs | 0.56 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_7.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding_8.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.Perf_Utf8Encoding.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.Perf_Utf8Encoding*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishMostlyAscii)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 55.79920345982141 < 84.43949939416703.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 3553.17665541953 (T) = (0 -55820.06641544837) / Math.Sqrt((4891.408156883712 / (299)) + (2246.7818065597266 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.3719622191743808 = (88880.10899928225 - 55820.06641544837) / 88880.10899928225 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetBytes(Input: Chinese)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 177.85265099431814 < 223.01837912935324.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 418.0501114009455 (T) = (0 -178239.6536098202) / Math.Sqrt((1097233.5324806739 / (299)) + (424670.28205184743 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.23387687531814977 = (232651.44709453615 - 178239.6536098202) / 232651.44709453615 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetBytes(Input: Greek)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 196.73462921875003 < 233.9301728371645.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 382.36024840357777 (T) = (0 -195920.52799186442) / Math.Sqrt((416512.3241523311 / (299)) + (478570.92254899046 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.19970170361698278 = (244809.3777999225 - 195920.52799186442) / 244809.3777999225 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetByteCount(Input: Greek)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 27.799929860730902 < 42.02963482002035.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 3626.517474859379 (T) = (0 -27825.931464748115) / Math.Sqrt((282.6421080444016 / (299)) + (626.5233432147377 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.3712414782102736 = (44255.35479907793 - 27825.931464748115) / 44255.35479907793 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetBytes(Input: Cyrillic)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 125.15520671428568 < 159.01634779405708.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 571.7774954341185 (T) = (0 -125374.76815684894) / Math.Sqrt((239954.14889903372 / (299)) + (140219.11746997977 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.24719830281013647 = (166544.21559470563 - 125374.76815684894) / 166544.21559470563 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetBytes(Input: EnglishMostlyAscii)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 156.5954445089286 < 189.25400680531888.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 114.26191583864953 (T) = (0 -156270.6330067141) / Math.Sqrt((880680.9151188323 / (299)) + (4111334.5132758464 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.20953064153090223 = (197693.47329207484 - 156270.6330067141) / 197693.47329207484 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetByteCount(Input: Chinese)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 24.36814476412649 < 38.463898731109666.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 1944.1006479163104 (T) = (0 -24335.03145228385) / Math.Sqrt((561.3152268008032 / (299)) + (2156.2030289166623 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.39934538618601856 = (40514.18384645962 - 24335.03145228385) / 40514.18384645962 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.Perf_Utf8Encoding.GetByteCount(Input: Cyrillic)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 19.744591474198913 < 33.334855084547826.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 706.161608819124 (T) = (0 -19822.36388472561) / Math.Sqrt((399.4457965663652 / (299)) + (14946.368628726175 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.4353514163738418 = (35105.664761305015 - 19822.36388472561) / 35105.664761305015 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.IO.Tests.StreamReaderReadLineTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%2033%2c%20%20128%5d).html>) | 49.73 μs | 46.83 μs | 0.94 | 0.04 | False | | |
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20129%2c%201024%5d).html>) | 41.22 μs | 35.80 μs | 0.87 | 0.01 | False | | |
[ReadLineAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange%3a%20%5b%20%20%200%2c%201024%5d).html>) | 40.88 μs | 35.82 μs | 0.88 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.IO.Tests.StreamReaderReadLineTests_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.IO.Tests.StreamReaderReadLineTests_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.IO.Tests.StreamReaderReadLineTests_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.IO.Tests.StreamReaderReadLineTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.Tests.StreamReaderReadLineTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [  33,  128])

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 46.83445507542607 < 47.343308428334936.
IsChangePoint: Marked as a change because one of 6/7/2022 11:31:29 PM, 6/22/2022 5:33:38 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 25.00990695900626 (T) = (0 -45686.33125546922) / Math.Sqrt((7089869.911761466 / (299)) + (843443.3288280037 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.10912614675713568 = (51282.6042533033 - 45686.33125546922) / 51282.6042533033 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 129, 1024])

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 35.800638687653674 < 39.12861969661522.
IsChangePoint: Marked as a change because one of 6/7/2022 11:31:29 PM, 6/22/2022 5:33:38 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 35.056052872315476 (T) = (0 -35566.77799547934) / Math.Sqrt((10230690.816383425 / (299)) + (42830.53874950135 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.15672458267542055 = (42176.94155999518 - 35566.77799547934) / 42176.94155999518 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [   0, 1024])

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 35.823983123569796 < 39.06273491119413.
IsChangePoint: Marked as a change because one of 6/7/2022 11:31:29 PM, 6/22/2022 5:33:38 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 34.22610238778667 (T) = (0 -35704.63764868644) / Math.Sqrt((9687476.754821362 / (299)) + (80622.7129105038 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.15191581111375474 = (42100.345834269 - 35704.63764868644) / 42100.345834269 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Common

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CtorInvoke - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options%3a%20Compiled).html>) | 494.77 μs | 426.28 μs | 0.86 | 0.54 | False | | |
[OneNodeBacktracking - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options%3a%20Compiled).html>) | 129.45 ns | 100.46 ns | 0.78 | 0.17 | False | | |
[CtorInvoke - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options%3a%20IgnoreCase%2c%20Compiled).html>) | 479.48 μs | 425.09 μs | 0.89 | 0.50 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Common_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Common_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Common_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Text.RegularExpressions.Tests.Perf_Regex_Common.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Common*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options: Compiled)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 426.28195229289935 < 457.295563223157.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 22.316477214083566 (T) = (0 -392826.8936264758) / Math.Sqrt((1147272362.6288657 / (299)) + (421310695.70863897 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.1897940212480271 = (484848.1792637219 - 392826.8936264758) / 484848.1792637219 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.OneNodeBacktracking(Options: Compiled)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 100.45884436751103 < 123.2110923204203.
IsChangePoint: Marked as a change because one of 7/2/2022 7:35:06 PM, 7/6/2022 3:55:24 AM, 8/17/2022 10:14:53 AM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 19.9729615349716 (T) = (0 -98.00545689699678) / Math.Sqrt((737.6776790278066 / (299)) + (7.745279042257447 / (33))) is greater than 1.9671786747533526 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (33) - 2, .975) and 0.250926984542466 = (130.83565269953692 - 98.00545689699678) / 130.83565269953692 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options: IgnoreCase, Compiled)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 425.0905881109022 < 467.68660005126526.
IsChangePoint: Marked as a change because one of 6/23/2022 3:07:42 AM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 26.544265788427026 (T) = (0 -417985.39530638355) / Math.Sqrt((1062076096.7805872 / (299)) + (208986701.814984 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.1678124460358392 = (502273.06730951736 - 417985.39530638355) / 502273.06730951736 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.Tests.Perf_Int32

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToStringHex - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Tests.Perf_Int32.ToStringHex(value%3a%202147483647).html>) | 29.81 ns | 24.15 ns | 0.81 | 0.17 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Tests.Perf_Int32_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Tests.Perf_Int32.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Tests.Perf_Int32*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.Tests.Perf_Int32.ToStringHex(value: 2147483647)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 24.151290246714808 < 28.493084502361707.
IsChangePoint: Marked as a change because one of 6/22/2022 5:33:38 PM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 31.658997384498196 (T) = (0 -25.052741371801034) / Math.Sqrt((12.554950793850246 / (299)) + (0.4619319370233071 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.23087433721240083 = (32.57301450714897 - 25.052741371801034) / 32.57301450714897 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in PerfLabTests.GetMember

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetField - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/PerfLabTests.GetMember.GetField.html>) | 61.49 μs | 54.41 μs | 0.88 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/PerfLabTests.GetMember_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/PerfLabTests.GetMember.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'PerfLabTests.GetMember*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### PerfLabTests.GetMember.GetField

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 54.412001374421294 < 58.48094059488518.
IsChangePoint: Marked as a change because one of 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 106.6302741163224 (T) = (0 -54888.11386975669) / Math.Sqrt((189333.6660731233 / (299)) + (102082.09137593703 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.10723970493882296 = (61481.35638804977 - 54888.11386975669) / 61481.35638804977 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [0a76d1ec9906951a3486ee4ca97f1035cc7fe475](https://github.com/dotnet/runtime/commit/0a76d1ec9906951a3486ee4ca97f1035cc7fe475)
Compare | [e05944dd74118db06d6987fe2724813950725737](https://github.com/dotnet/runtime/commit/e05944dd74118db06d6987fe2724813950725737)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0a76d1ec9906951a3486ee4ca97f1035cc7fe475...e05944dd74118db06d6987fe2724813950725737)


### Improvements in System.Collections.Concurrent.IsEmpty&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.Concurrent.IsEmpty(String).Queue(Size%3a%20512).html>) | 13.87 ns | 12.51 ns | 0.90 | 0.29 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Collections.Concurrent.IsEmpty(String)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/08_25_2022/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Collections.Concurrent.IsEmpty(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.Collections.Concurrent.IsEmpty&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-02c20e93-46d4-408b-8494-b6136e71fe7ae647c0b670747ec93/8021c2c0-f4fd-4c7f-aa57-decba74ef18b.zip?sv=2021-08-06&se=2022-09-16T12%3A24%3A57Z&sr=c&sp=rl&sig=FUB56K18NlfeAyCKWuvZHVZCn7QJA9TaNvRxooY7pqI%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-925060c7-49df-420b-a76a-c95b87650741806ff47834147ea97/19171f15-49e8-4889-987a-135d19fba53c.zip?sv=2021-08-06&se=2022-09-17T02%3A24%3A25Z&sr=c&sp=rl&sig=cVmhDJK8xERfupL2vJfjg63FwFjq64l7uFjN1nFB1Pw%3D>)
### Histogram

#### System.Collections.Concurrent.IsEmpty&lt;String&gt;.Queue(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 12.507476778245705 < 13.123991123193763.
IsChangePoint: Marked as a change because one of 5/30/2022 4:33:23 PM, 6/27/2022 8:54:23 AM, 8/17/2022 3:53:31 PM, 8/25/2022 6:55:57 AM falls between 8/16/2022 2:19:13 PM and 8/25/2022 6:55:57 AM.
IsImprovementStdDev: Marked as improvement because 10.751907331331216 (T) = (0 -12.559818851354473) / Math.Sqrt((0.767302088722738 / (299)) + (0.3712170067368273 / (32))) is greater than 1.9672006833568965 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (32) - 2, .975) and 0.09246952182589468 = (13.839555974609299 - 12.559818851354473) / 13.839555974609299 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	arm64
OS	ubuntu 20.04
Baseline	0a76d1ec9906951a3486ee4ca97f1035cc7fe475
Compare	e05944dd74118db06d6987fe2724813950725737
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Count - Duration of single invocation	11.99 ms	8.14 ms	0.68	0.37	False
Count - Duration of single invocation	2.27 ms	2.08 ms	0.92	0.02	False
Count - Duration of single invocation	3.97 ms	3.61 ms	0.91	0.01	False
Count - Duration of single invocation	1.35 ms	1.21 ms	0.90	0.25	False
Count - Duration of single invocation	2.26 ms	2.08 ms	0.92	0.02	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
GetByteCount - Duration of single invocation	88.86 μs	55.80 μs	0.63	0.00	False
GetBytes - Duration of single invocation	234.96 μs	177.85 μs	0.76	0.00	False
GetBytes - Duration of single invocation	246.18 μs	196.73 μs	0.80	0.00	False
GetByteCount - Duration of single invocation	44.24 μs	27.80 μs	0.63	0.00	False
GetBytes - Duration of single invocation	168.60 μs	125.16 μs	0.74	0.00	False
GetBytes - Duration of single invocation	199.25 μs	156.60 μs	0.79	0.01	False
GetByteCount - Duration of single invocation	40.48 μs	24.37 μs	0.60	0.00	False
GetByteCount - Duration of single invocation	35.09 μs	19.74 μs	0.56	0.00	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ReadLineAsync - Duration of single invocation	49.73 μs	46.83 μs	0.94	0.04	False
ReadLineAsync - Duration of single invocation	41.22 μs	35.80 μs	0.87	0.01	False
ReadLineAsync - Duration of single invocation	40.88 μs	35.82 μs	0.88	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
CtorInvoke - Duration of single invocation	494.77 μs	426.28 μs	0.86	0.54	False
OneNodeBacktracking - Duration of single invocation	129.45 ns	100.46 ns	0.78	0.17	False
CtorInvoke - Duration of single invocation	479.48 μs	425.09 μs	0.89	0.50	False

[Perf] ubuntu 20.04/arm64 : Improvement on 8/17/2022 8:19:48 PM #8020

Description

Run Information

Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock

Repro

Payloads

Histogram

System.Text.RegularExpressions.Tests.Perf_Regex_Industry_RustLang_Sherlock.Count(Pattern: "\b\w+n\b", Options: NonBacktracking)

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Text.Perf_Utf8Encoding

Repro

Payloads

Histogram

System.Text.Perf_Utf8Encoding.GetByteCount(Input: EnglishMostlyAscii)

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

Description of detection logic

Docs

Run Information

Improvements in System.IO.Tests.StreamReaderReadLineTests

Repro

Payloads

Histogram

System.IO.Tests.StreamReaderReadLineTests.ReadLineAsync(LineLengthRange: [ 33, 128])

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Common

Repro

Payloads

Histogram

System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options: Compiled)

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Tests.Perf_Int32

Repro

Payloads

Histogram

System.Tests.Perf_Int32.ToStringHex(value: 2147483647)

Description of detection logic

Docs

Run Information

Improvements in PerfLabTests.GetMember

Repro

Payloads

Histogram

PerfLabTests.GetMember.GetField

Description of detection logic

Docs

Run Information

Improvements in System.Collections.Concurrent.IsEmpty<String>

Repro

Payloads

Histogram

System.Collections.Concurrent.IsEmpty<String>.Queue(Size: 512)

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships