[Perf] Linux/x64: 14 Improvements on 2/2/2023 2:14:14 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [4354abd606119bd9fb0fdefa9f3c0f58f414bfa9](https://github.com/dotnet/runtime/commit/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9)
Compare | [ddba2aafec61e780d795775d2bfc0e545964c208](https://github.com/dotnet/runtime/commit/ddba2aafec61e780d795775d2bfc0e545964c208)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9...ddba2aafec61e780d795775d2bfc0e545964c208)


### Improvements in Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[AddThenRemove_ExpirationTokens - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_ExpirationTokens.html>) | 64.44 μs | 53.61 μs | 0.83 | 0.48 | False | | |
[AddThenRemove_RelativeExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_RelativeExpiration.html>) | 59.38 μs | 38.27 μs | 0.64 | 0.50 | False | | |
[TryGetValueHit - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.TryGetValueHit.html>) | 85.76 ns | 63.43 ns | 0.74 | 0.14 | False | | |
[SetOverride - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.SetOverride.html>) | 243.08 ns | 208.66 ns | 0.86 | 0.04 | False | | |
[AddThenRemove_SlidingExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_SlidingExpiration.html>) | 58.83 μs | 37.79 μs | 0.64 | 0.53 | False | | |
[AddThenRemove_AbsoluteExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_AbsoluteExpiration.html>) | 62.41 μs | 39.08 μs | 0.63 | 0.45 | False | | |
[AddThenRemove_NoExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_NoExpiration.html>) | 58.50 μs | 36.68 μs | 0.63 | 0.53 | False | | |
[GetHit - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetHit.html>) | 90.83 ns | 65.90 ns | 0.73 | 0.21 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_07_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_Improvement/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6cd3295-1c26-4022-94f7-0ceb5b067ee0fbe83901ef74f94bd/5240236a-dfe9-41d8-8a74-f3ab2c000816.zip?sv=2021-08-06&se=2023-03-04T07%3A11%3A52Z&sr=c&sp=rl&sig=nbi5L1FTPo8mhTA1r5RWiDLwd5xuyuWLIeoIQa8I5cw%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2034b4c4-1eb1-4f8f-a567-3309b98fb4d83b52e4452914623b8/9e9d3144-2e17-45d8-be5f-433611aea57d.zip?sv=2021-08-06&se=2023-03-04T18%3A39%3A38Z&sr=c&sp=rl&sig=7L6VBFOVg%2FY9MVS92Filp4KqYFS1wT1K8AF0FkV65QI%3D>)
### Histogram

#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_ExpirationTokens

```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 53.60703483560091 < 62.87107051583837.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 53.332394931481 (T) = (0 -53364.40877814733) / Math.Sqrt((29160679.27294821 / (299)) + (112492.30863918459 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.24197925511062068 = (70399.66800108484 - 53364.40877814733) / 70399.66800108484 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_RelativeExpiration

```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 38.272749987043944 < 51.85225152320906.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 55.04520639740798 (T) = (0 -38004.69954581673) / Math.Sqrt((28192450.915191524 / (299)) + (42943.47084925982 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.3097640121882505 = (55060.443409076324 - 38004.69954581673) / 55060.443409076324 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.TryGetValueHit

```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 63.434864319780026 < 80.97376407457098.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 106.4403394115516 (T) = (0 -64.40144331336306) / Math.Sqrt((4.547250579661217 / (299)) + (0.6644505429874968 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.2525334636885627 = (86.15963415722699 - 64.40144331336306) / 86.15963415722699 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.SetOverride

```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 208.6554596108031 < 232.5005766718238.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 32.1749908266241 (T) = (0 -209.30524323864287) / Math.Sqrt((9.554394726525823 / (299)) + (31.21918517300462 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.14818697106081588 = (245.71735360669905 - 209.30524323864287) / 245.71735360669905 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_SlidingExpiration

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 37.786696281199674 < 51.809575913202046.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 50.911754930691714 (T) = (0 -38048.02681436718) / Math.Sqrt((29699356.017753076 / (299)) + (164431.4435479146 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.30335840806985653 = (54616.35833276875 - 38048.02681436718) / 54616.35833276875 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_AbsoluteExpiration

```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 39.076046310116084 < 57.756381907577214.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 52.79425304786823 (T) = (0 -39289.72719542231) / Math.Sqrt((28636845.14770942 / (299)) + (50810.263969097665 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.29589222281858024 = (55800.728906448305 - 39289.72719542231) / 55800.728906448305 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_NoExpiration

```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 36.67549963885879 < 51.16219872107226.
IsChangePoint: Marked as a change because one of 2/2/2023 5:46:53 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 52.57500762142119 (T) = (0 -36663.09287434654) / Math.Sqrt((28990422.684002776 / (299)) + (114575.20478791492 / (26))) is greater than 1.967335607330539 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (26) - 2, .975) and 0.31344873977833015 = (53401.828819757706 - 36663.09287434654) / 53401.828819757706 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetHit

```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 65.8962969345844 < 86.33976638911906.
IsChangePoint: Marked as a change because one of 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 73.49325765824314 (T) = (0 -67.2064617204041) / Math.Sqrt((7.932408020668414 / (299)) + (1.7567330626495234 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.2538592184129769 = (90.0720927992404 - 67.2064617204041) / 90.0720927992404 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [4354abd606119bd9fb0fdefa9f3c0f58f414bfa9](https://github.com/dotnet/runtime/commit/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9)
Compare | [ddba2aafec61e780d795775d2bfc0e545964c208](https://github.com/dotnet/runtime/commit/ddba2aafec61e780d795775d2bfc0e545964c208)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9...ddba2aafec61e780d795775d2bfc0e545964c208)


### Improvements in System.Numerics.Tests.Perf_BitOperations

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Log2_ulong - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Numerics.Tests.Perf_BitOperations.Log2_ulong.html>) | 1.32 μs | 895.20 ns | 0.68 | 0.02 | False | | |
[LeadingZeroCount_uint - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Numerics.Tests.Perf_BitOperations.LeadingZeroCount_uint.html>) | 1.10 μs | 667.93 ns | 0.61 | 0.02 | False | | |
[LeadingZeroCount_ulong - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Numerics.Tests.Perf_BitOperations.LeadingZeroCount_ulong.html>) | 1.10 μs | 746.80 ns | 0.68 | 0.02 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_07_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_Improvement/System.Numerics.Tests.Perf_BitOperations.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_BitOperations*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6cd3295-1c26-4022-94f7-0ceb5b067ee0fbe83901ef74f94bd/5240236a-dfe9-41d8-8a74-f3ab2c000816.zip?sv=2021-08-06&se=2023-03-04T07%3A11%3A52Z&sr=c&sp=rl&sig=nbi5L1FTPo8mhTA1r5RWiDLwd5xuyuWLIeoIQa8I5cw%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2034b4c4-1eb1-4f8f-a567-3309b98fb4d83b52e4452914623b8/9e9d3144-2e17-45d8-be5f-433611aea57d.zip?sv=2021-08-06&se=2023-03-04T18%3A39%3A38Z&sr=c&sp=rl&sig=7L6VBFOVg%2FY9MVS92Filp4KqYFS1wT1K8AF0FkV65QI%3D>)
### Histogram

#### System.Numerics.Tests.Perf_BitOperations.Log2_ulong

```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 895.1969885107435 < 1.253684400877916.
IsChangePoint: Marked as a change because one of 11/21/2022 6:40:27 PM, 12/14/2022 12:26:48 AM, 12/20/2022 9:29:18 AM, 1/9/2023 10:41:51 AM, 1/18/2023 3:20:52 PM, 1/27/2023 11:43:56 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 11.985963356262094 (T) = (0 -895.279434519972) / Math.Sqrt((39622.216765955534 / (299)) + (0.4227885120430693 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.1335434594854074 = (1033.2652506590364 - 895.279434519972) / 1033.2652506590364 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_BitOperations.LeadingZeroCount_uint

```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 667.925187289137 < 1.047981203799868.
IsChangePoint: Marked as a change because one of 11/21/2022 6:40:27 PM, 12/14/2022 12:26:48 AM, 12/20/2022 9:29:18 AM, 1/9/2023 10:41:51 AM, 1/18/2023 3:20:52 PM, 1/27/2023 11:43:56 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 11.944714637037519 (T) = (0 -667.946933892995) / Math.Sqrt((41357.63277983202 / (299)) + (0.2735867379307138 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.17377641309172825 = (808.4336304080257 - 667.946933892995) / 808.4336304080257 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_BitOperations.LeadingZeroCount_ulong

```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 746.8004559327833 < 1.0476533012312217.
IsChangePoint: Marked as a change because one of 11/21/2022 6:40:27 PM, 12/14/2022 12:26:48 AM, 12/20/2022 9:29:18 AM, 1/9/2023 10:41:51 AM, 1/18/2023 11:30:09 AM, 1/27/2023 11:43:56 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 11.884490396114638 (T) = (0 -745.8643573195286) / Math.Sqrt((27910.61528319709 / (299)) + (0.43166989860404303 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.13341939024435173 = (860.6981842460584 - 745.8643573195286) / 860.6981842460584 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [4354abd606119bd9fb0fdefa9f3c0f58f414bfa9](https://github.com/dotnet/runtime/commit/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9)
Compare | [ddba2aafec61e780d795775d2bfc0e545964c208](https://github.com/dotnet/runtime/commit/ddba2aafec61e780d795775d2bfc0e545964c208)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9...ddba2aafec61e780d795775d2bfc0e545964c208)


### Improvements in System.Collections.IndexerSet&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Array - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Collections.IndexerSet(String).Array(Size%3a%20512).html>) | 1.58 μs | 1.28 μs | 0.81 | 0.04 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_07_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_Improvement/System.Collections.IndexerSet(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IndexerSet&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6cd3295-1c26-4022-94f7-0ceb5b067ee0fbe83901ef74f94bd/5240236a-dfe9-41d8-8a74-f3ab2c000816.zip?sv=2021-08-06&se=2023-03-04T07%3A11%3A52Z&sr=c&sp=rl&sig=nbi5L1FTPo8mhTA1r5RWiDLwd5xuyuWLIeoIQa8I5cw%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2034b4c4-1eb1-4f8f-a567-3309b98fb4d83b52e4452914623b8/9e9d3144-2e17-45d8-be5f-433611aea57d.zip?sv=2021-08-06&se=2023-03-04T18%3A39%3A38Z&sr=c&sp=rl&sig=7L6VBFOVg%2FY9MVS92Filp4KqYFS1wT1K8AF0FkV65QI%3D>)
### Histogram

#### System.Collections.IndexerSet&lt;String&gt;.Array(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 1.2759436464877212 < 1.4965632207072441.
IsChangePoint: Marked as a change because one of 11/21/2022 6:40:27 PM, 1/11/2023 4:46:06 PM, 1/27/2023 11:43:56 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 43.93676732591497 (T) = (0 -1284.6157731700423) / Math.Sqrt((13555.560165624469 / (299)) + (514.6470958748006 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.21734164119422408 = (1641.3493304156123 - 1284.6157731700423) / 1641.3493304156123 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [4354abd606119bd9fb0fdefa9f3c0f58f414bfa9](https://github.com/dotnet/runtime/commit/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9)
Compare | [ddba2aafec61e780d795775d2bfc0e545964c208](https://github.com/dotnet/runtime/commit/ddba2aafec61e780d795775d2bfc0e545964c208)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9...ddba2aafec61e780d795775d2bfc0e545964c208)


### Improvements in System.Tests.Perf_String

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IndexerCheckLengthHoisting - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Tests.Perf_String.IndexerCheckLengthHoisting.html>) | 90.34 ns | 65.98 ns | 0.73 | 0.03 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_07_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_Improvement/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6cd3295-1c26-4022-94f7-0ceb5b067ee0fbe83901ef74f94bd/5240236a-dfe9-41d8-8a74-f3ab2c000816.zip?sv=2021-08-06&se=2023-03-04T07%3A11%3A52Z&sr=c&sp=rl&sig=nbi5L1FTPo8mhTA1r5RWiDLwd5xuyuWLIeoIQa8I5cw%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2034b4c4-1eb1-4f8f-a567-3309b98fb4d83b52e4452914623b8/9e9d3144-2e17-45d8-be5f-433611aea57d.zip?sv=2021-08-06&se=2023-03-04T18%3A39%3A38Z&sr=c&sp=rl&sig=7L6VBFOVg%2FY9MVS92Filp4KqYFS1wT1K8AF0FkV65QI%3D>)
### Histogram

#### System.Tests.Perf_String.IndexerCheckLengthHoisting

```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 65.98101334247443 < 85.85209182158064.
IsChangePoint: Marked as a change because one of 11/21/2022 6:40:27 PM, 12/14/2022 12:26:48 AM, 12/20/2022 9:29:18 AM, 1/18/2023 3:20:52 PM, 1/27/2023 11:43:56 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 19.395276866876 (T) = (0 -66.17487509025203) / Math.Sqrt((185.09726096484044 / (299)) + (0.08046504963039612 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.1877862062552652 = (81.47469988800718 - 66.17487509025203) / 81.47469988800718 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>


### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [4354abd606119bd9fb0fdefa9f3c0f58f414bfa9](https://github.com/dotnet/runtime/commit/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9)
Compare | [ddba2aafec61e780d795775d2bfc0e545964c208](https://github.com/dotnet/runtime/commit/ddba2aafec61e780d795775d2bfc0e545964c208)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4354abd606119bd9fb0fdefa9f3c0f58f414bfa9...ddba2aafec61e780d795775d2bfc0e545964c208)


### Improvements in System.Collections.IterateFor&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04_LLVM=false_MonoAOT=true_MonoInterpreter=false/System.Collections.IterateFor(String).IList(Size%3a%20512).html>) | 3.36 μs | 2.94 μs | 0.88 | 0.31 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_07_2023/refs/heads/main_x64_ubuntu%2018.04_LLVM=false_MonoAOT=true_MonoInterpreter=false_Improvement/System.Collections.IterateFor(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateFor&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6cd3295-1c26-4022-94f7-0ceb5b067ee0fbe83901ef74f94bd/5240236a-dfe9-41d8-8a74-f3ab2c000816.zip?sv=2021-08-06&se=2023-03-04T07%3A11%3A52Z&sr=c&sp=rl&sig=nbi5L1FTPo8mhTA1r5RWiDLwd5xuyuWLIeoIQa8I5cw%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-2034b4c4-1eb1-4f8f-a567-3309b98fb4d83b52e4452914623b8/9e9d3144-2e17-45d8-be5f-433611aea57d.zip?sv=2021-08-06&se=2023-03-04T18%3A39%3A38Z&sr=c&sp=rl&sig=7L6VBFOVg%2FY9MVS92Filp4KqYFS1wT1K8AF0FkV65QI%3D>)
### Histogram

#### System.Collections.IterateFor&lt;String&gt;.IList(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 2.942323408949174 < 3.1950694472724277.
IsChangePoint: Marked as a change because one of 1/5/2023 12:24:13 PM, 1/11/2023 4:46:06 PM, 2/2/2023 8:18:56 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 7.547948961682004 (T) = (0 -3165.6652359277673) / Math.Sqrt((82503.71538771075 / (299)) + (49465.51178201551 / (25))) is greater than 1.9673585853226652 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (25) - 2, .975) and 0.10169886481724548 = (3524.057926614698 - 3165.6652359277673) / 3524.057926614698 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>




Architecture	x64
OS	ubuntu 18.04
Baseline	4354abd606119bd9fb0fdefa9f3c0f58f414bfa9
Compare	ddba2aafec61e780d795775d2bfc0e545964c208
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
AddThenRemove_ExpirationTokens - Duration of single invocation	64.44 μs	53.61 μs	0.83	0.48	False
AddThenRemove_RelativeExpiration - Duration of single invocation	59.38 μs	38.27 μs	0.64	0.50	False
TryGetValueHit - Duration of single invocation	85.76 ns	63.43 ns	0.74	0.14	False
SetOverride - Duration of single invocation	243.08 ns	208.66 ns	0.86	0.04	False
AddThenRemove_SlidingExpiration - Duration of single invocation	58.83 μs	37.79 μs	0.64	0.53	False
AddThenRemove_AbsoluteExpiration - Duration of single invocation	62.41 μs	39.08 μs	0.63	0.45	False
AddThenRemove_NoExpiration - Duration of single invocation	58.50 μs	36.68 μs	0.63	0.53	False
GetHit - Duration of single invocation	90.83 ns	65.90 ns	0.73	0.21	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Log2_ulong - Duration of single invocation	1.32 μs	895.20 ns	0.68	0.02	False
LeadingZeroCount_uint - Duration of single invocation	1.10 μs	667.93 ns	0.61	0.02	False
LeadingZeroCount_ulong - Duration of single invocation	1.10 μs	746.80 ns	0.68	0.02	False

Uh oh!

[Perf] Linux/x64: 14 Improvements on 2/2/2023 2:14:14 PM #12488

Description

Run Information

Improvements in Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests

Repro

Payloads

Histogram

Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_ExpirationTokens

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

Improvements in System.Numerics.Tests.Perf_BitOperations

Repro

Payloads

Histogram

System.Numerics.Tests.Perf_BitOperations.Log2_ulong

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IndexerSet<String>

Repro

Payloads

Histogram

System.Collections.IndexerSet<String>.Array(Size: 512)

Description of detection logic

Docs

Run Information

Improvements in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.IndexerCheckLengthHoisting

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateFor<String>

Repro

Payloads

Histogram

System.Collections.IterateFor<String>.IList(Size: 512)

Description of detection logic

Docs

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