[Perf] Changes at 4/27/2022 3:50:47 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [a077f271c3b5a8487f94111dc00a404a01fdc86b](https://github.com/dotnet/runtime/commit/a077f271c3b5a8487f94111dc00a404a01fdc86b)
Compare | [9342649430c19af4bc9fe0d870609778f244a721](https://github.com/dotnet/runtime/commit/9342649430c19af4bc9fe0d870609778f244a721)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a077f271c3b5a8487f94111dc00a404a01fdc86b...9342649430c19af4bc9fe0d870609778f244a721)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetHit - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetHit.html>) | 43.70 ns | 37.31 ns | 0.85 | 0.08 | False | | |
[AddThenRemove_SlidingExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_SlidingExpiration.html>) | 28.63 μs | 26.17 μs | 0.91 | 0.55 | False | | |
[GetMiss - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetMiss.html>) | 37.03 ns | 28.20 ns | 0.76 | 0.05 | False | | |
[TryGetValueHit - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.TryGetValueHit.html>) | 44.76 ns | 40.04 ns | 0.89 | 0.10 | False | | |
[TryGetValueMiss - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.TryGetValueMiss.html>) | 37.74 ns | 28.82 ns | 0.76 | 0.04 | True | | |
[AddThenRemove_RelativeExpiration - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.AddThenRemove_RelativeExpiration.html>) | 25.20 μs | 22.41 μs | 0.89 | 0.51 | False | | |
[CreateEntry - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.CreateEntry.html>) | 16.23 ns | 12.68 ns | 0.78 | 0.07 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_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 net6.0 --filter 'Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-d58c16a3-a1db-4f88-ae7f-7ce896afc4a91d1f019c16f4502ab/121fdfe9-c7df-4058-8598-3cde1e91bd7d.zip?sv=2019-07-07&se=2022-05-27T11%3A39%3A04Z&sr=c&sp=rl&sig=msq3qg3lNGeKq81%2B4ymbPYGDd%2FRCWuISLmZTFERL%2Ffw%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-52b77436-4e5e-494d-93b9-758371a28c587cef48b71134164b8/faf49eee-9184-4449-8125-c81b56acd6bc.zip?sv=2019-07-07&se=2022-05-28T18%3A39%3A49Z&sr=c&sp=rl&sig=stLg%2Fs1rfRhhgY12Ck6DsTme6tMPNbLLrLzallvuxcc%3D>)
### Histogram

#### 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 37.31027505932753 < 42.00445957479231.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 21.45360784284862 (T) = (0 -38.54739073238311) / Math.Sqrt((1.8476141075196961 / (299)) + (1.7590565536599623 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.12754965818806716 = (44.18290518670283 - 38.54739073238311) / 44.18290518670283 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 26.169790058523414 < 27.220558833350573.
IsChangePoint: Marked as a change because one of 4/26/2022 10:28:11 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 5.047171050104607 (T) = (0 -24182.001126146224) / Math.Sqrt((6804491.578825965 / (299)) + (6637774.310751563 / (34))) is greater than 1.9671567996108528 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (34) - 2, .975) and 0.08879459433000436 = (26538.474174618797 - 24182.001126146224) / 26538.474174618797 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetMiss

```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 28.200068443259003 < 35.223835442204525.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 32.20842107340933 (T) = (0 -29.11481803357828) / Math.Sqrt((0.5980157011605819 / (299)) + (1.7908671723533844 / (27))) is greater than 1.9673127716992511 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (27) - 2, .975) and 0.22430829680903439 = (37.53400727867599 - 29.11481803357828) / 37.53400727867599 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 40.03653287361666 < 41.91067128244847.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 25.274043830482675 (T) = (0 -38.51935027890317) / Math.Sqrt((1.8168730059820162 / (299)) + (1.2873051722288822 / (27))) is greater than 1.9673127716992511 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (27) - 2, .975) and 0.13203927680962663 = (44.37913980406526 - 38.51935027890317) / 44.37913980406526 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.TryGetValueMiss

```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 28.81805650298544 < 35.775865940316415.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 65.02261345489205 (T) = (0 -28.85070121681417) / Math.Sqrt((0.6436343190354133 / (299)) + (0.4594966189094766 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.23492890695296287 = (37.70983047067027 - 28.85070121681417) / 37.70983047067027 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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 22.410148246951216 < 24.07052892497983.
IsChangePoint: Marked as a change because one of 5/1/2022 2:35:06 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 6.751456677593773 (T) = (0 -22803.56864283538) / Math.Sqrt((6765299.197270015 / (299)) + (5443556.171667827 / (10))) is greater than 1.9677212881555053 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (10) - 2, .975) and 0.18229541665939508 = (27887.29463845604 - 22803.56864283538) / 27887.29463845604 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.CreateEntry

```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 12.680601288254895 < 15.458961376699245.
IsChangePoint: Marked as a change because one of 3/30/2022 6:37:35 PM, 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 38.142440560353634 (T) = (0 -12.830243334632183) / Math.Sqrt((0.2727619366915838 / (299)) + (0.17828611497755684 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.20232649741340006 = (16.084580085746623 - 12.830243334632183) / 16.084580085746623 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 | [a077f271c3b5a8487f94111dc00a404a01fdc86b](https://github.com/dotnet/runtime/commit/a077f271c3b5a8487f94111dc00a404a01fdc86b)
Compare | [9342649430c19af4bc9fe0d870609778f244a721](https://github.com/dotnet/runtime/commit/9342649430c19af4bc9fe0d870609778f244a721)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a077f271c3b5a8487f94111dc00a404a01fdc86b...9342649430c19af4bc9fe0d870609778f244a721)


### Improvements in System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CreateNew - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity%3a%2010000000).html>) | 23.54 μs | 17.90 μs | 0.76 | 0.09 | True | | |
[CreateNew - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity%3a%2010000).html>) | 23.78 μs | 18.76 μs | 0.79 | 0.09 | True | | |
[CreateNew - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity%3a%20100000).html>) | 26.55 μs | 18.14 μs | 0.68 | 0.07 | True | | |
[CreateNew - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity%3a%201000000).html>) | 24.66 μs | 18.77 μs | 0.76 | 0.11 | True | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_03_2022/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net6.0 --filter 'System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile*'
```
<details>

### Payloads

[Baseline](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-d58c16a3-a1db-4f88-ae7f-7ce896afc4a91d1f019c16f4502ab/121fdfe9-c7df-4058-8598-3cde1e91bd7d.zip?sv=2019-07-07&se=2022-05-27T11%3A39%3A04Z&sr=c&sp=rl&sig=msq3qg3lNGeKq81%2B4ymbPYGDd%2FRCWuISLmZTFERL%2Ffw%3D>)
[Compare](<https://helixdi8s23ayyeko0k025g8.blob.core.windows.net/helix-job-52b77436-4e5e-494d-93b9-758371a28c587cef48b71134164b8/faf49eee-9184-4449-8125-c81b56acd6bc.zip?sv=2019-07-07&se=2022-05-28T18%3A39%3A49Z&sr=c&sp=rl&sig=stLg%2Fs1rfRhhgY12Ck6DsTme6tMPNbLLrLzallvuxcc%3D>)
### Histogram

#### System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 10000000)

```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 17.902582178381962 < 22.884319063453184.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 67.94175076121805 (T) = (0 -18556.618538282186) / Math.Sqrt((495908.59244409844 / (299)) + (143449.46593162837 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.23166461039630803 = (24151.71654120176 - 18556.618538282186) / 24151.71654120176 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 10000)

```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 18.763510520957485 < 22.976482527070452.
IsChangePoint: Marked as a change because one of 4/27/2022 8:46:50 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 76.48391372820173 (T) = (0 -18455.86576776111) / Math.Sqrt((564028.1044781969 / (299)) + (103742.09064416958 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.23657320184355735 = (24175.03002557569 - 18455.86576776111) / 24175.03002557569 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 100000)

```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 18.144305307825086 < 22.7836403507761.
IsChangePoint: Marked as a change because one of 4/27/2022 1:24:17 PM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 68.92513791875366 (T) = (0 -18512.312398627426) / Math.Sqrt((650103.0703313223 / (299)) + (126532.70253332735 / (28))) is greater than 1.967290077109849 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (28) - 2, .975) and 0.23348427284149614 = (24151.249273453406 - 18512.312398627426) / 24151.249273453406 is greater than 0.05.
IsChangeEdgeDetector: Marked as regression because Edge Detector said so.

```#### System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 1000000)

```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 18.76678380114771 < 23.129448238391113.
IsChangePoint: Marked as a change because one of 4/27/2022 8:46:50 AM, 5/3/2022 11:42:39 AM falls between 4/24/2022 10:52:31 PM and 5/3/2022 11:42:39 AM.
IsImprovementStdDev: Marked as improvement because 58.93411999890581 (T) = (0 -18496.651072240715) / Math.Sqrt((605545.2004190284 / (299)) + (210996.6244818188 / (29))) is greater than 1.9672675222597202 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (29) - 2, .975) and 0.23505449551657476 = (24180.35136337153 - 18496.651072240715) / 24180.35136337153 is greater than 0.05.
IsChangeEdgeDetector: Marked as 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>




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[Perf] Changes at 4/27/2022 3:50:47 PM #5095

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

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Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetHit

Description of detection logic

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Description of detection logic

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Description of detection logic

Description of detection logic

Description of detection logic

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Improvements in System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile

Repro

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System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 10000000)

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Architecture	x64
OS	ubuntu 18.04
Baseline	a077f271c3b5a8487f94111dc00a404a01fdc86b
Compare	9342649430c19af4bc9fe0d870609778f244a721
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
GetHit - Duration of single invocation	43.70 ns	37.31 ns	0.85	0.08	False
AddThenRemove_SlidingExpiration - Duration of single invocation	28.63 μs	26.17 μs	0.91	0.55	False
GetMiss - Duration of single invocation	37.03 ns	28.20 ns	0.76	0.05	False
TryGetValueHit - Duration of single invocation	44.76 ns	40.04 ns	0.89	0.10	False
TryGetValueMiss - Duration of single invocation	37.74 ns	28.82 ns	0.76	0.04	True
AddThenRemove_RelativeExpiration - Duration of single invocation	25.20 μs	22.41 μs	0.89	0.51	False
CreateEntry - Duration of single invocation	16.23 ns	12.68 ns	0.78	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
CreateNew - Duration of single invocation	23.54 μs	17.90 μs	0.76	0.09	True
CreateNew - Duration of single invocation	23.78 μs	18.76 μs	0.79	0.09	True
CreateNew - Duration of single invocation	26.55 μs	18.14 μs	0.68	0.07	True
CreateNew - Duration of single invocation	24.66 μs	18.77 μs	0.76	0.11	True

Uh oh!

[Perf] Changes at 4/27/2022 3:50:47 PM #5095

Description

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

Repro

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Microsoft.Extensions.Caching.Memory.Tests.MemoryCacheTests.GetHit

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.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile

Repro

Payloads

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System.IO.MemoryMappedFiles.Tests.Perf_MemoryMappedFile.CreateNew(capacity: 10000000)

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Description of detection logic

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