Regressions in Benchstone.BenchI.IniArray


### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4da62e4341215905907bc93587eb44c8abb56d3f](https://github.com/dotnet/runtime/commit/4da62e4341215905907bc93587eb44c8abb56d3f)
Compare | [46cb4eddbb1f4bebdea970964d7449bacde8df1a](https://github.com/dotnet/runtime/commit/46cb4eddbb1f4bebdea970964d7449bacde8df1a)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4da62e4341215905907bc93587eb44c8abb56d3f...46cb4eddbb1f4bebdea970964d7449bacde8df1a)


### Regressions in System.Collections.Tests.Add_Remove_SteadyState&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ConcurrentStack - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Collections.Tests.Add_Remove_SteadyState(Int32).ConcurrentStack(Count%3a%20512).html>) | 22.74 ns | 25.60 ns | 1.13 | 0.08 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Collections.Tests.Add_Remove_SteadyState(Int32)_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Collections.Tests.Add_Remove_SteadyState(Int32).html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Tests.Add_Remove_SteadyState&lt;Int32&gt;*'
```

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)
### Histogram

#### System.Collections.Tests.Add_Remove_SteadyState&lt;Int32&gt;.ConcurrentStack(Count: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 25.595127681490542 > 23.95560846666927.
IsChangePoint: Marked as a change because one of 12/1/2022 11:48:13 PM, 2/9/2023 4:10:34 PM, 2/14/2023 2:39:38 AM falls between 2/4/2023 10:21:07 PM and 2/14/2023 2:39:38 AM.
IsRegressionStdDev: Marked as regression because -6.596255372280926 (T) = (0 -25.502845122630248) / Math.Sqrt((2.371620314086687 / (40)) + (1.258006927530987 / (20))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (40) + (20) - 2, .025) and -0.09939937751099344 = (23.197070731809863 - 25.502845122630248) / 23.197070731809863 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>

### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4da62e4341215905907bc93587eb44c8abb56d3f](https://github.com/dotnet/runtime/commit/4da62e4341215905907bc93587eb44c8abb56d3f)
Compare | [46cb4eddbb1f4bebdea970964d7449bacde8df1a](https://github.com/dotnet/runtime/commit/46cb4eddbb1f4bebdea970964d7449bacde8df1a)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4da62e4341215905907bc93587eb44c8abb56d3f...46cb4eddbb1f4bebdea970964d7449bacde8df1a)


### Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Int

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GetHashCodeBenchmark - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Runtime.Intrinsics.Tests.Perf_Vector128Int.GetHashCodeBenchmark.html>) | 12.05 ns | 13.94 ns | 1.16 | 0.04 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Runtime.Intrinsics.Tests.Perf_Vector128Int_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Runtime.Intrinsics.Tests.Perf_Vector128Int.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Runtime.Intrinsics.Tests.Perf_Vector128Int*'
```

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)
### Histogram

#### System.Runtime.Intrinsics.Tests.Perf_Vector128Int.GetHashCodeBenchmark

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 13.937877174207754 > 12.655306191910952.
IsChangePoint: Marked as a change because one of 1/3/2023 6:29:42 AM, 1/13/2023 4:37:08 PM, 1/18/2023 3:20:52 PM, 1/27/2023 7:12:54 PM, 2/9/2023 4:10:34 PM, 2/14/2023 2:39:38 AM falls between 2/4/2023 10:21:07 PM and 2/14/2023 2:39:38 AM.
IsRegressionStdDev: Marked as regression because -208.95059889922348 (T) = (0 -14.024128670234585) / Math.Sqrt((0.0007295337975537152 / (40)) + (0.001386262659928889 / (20))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (40) + (20) - 2, .025) and -0.16199591997452498 = (12.06899992432163 - 14.024128670234585) / 12.06899992432163 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>



### Run Information

Architecture | x64
-- | --
OS | Windows 10.0.18362
Baseline | [4da62e4341215905907bc93587eb44c8abb56d3f](https://github.com/dotnet/runtime/commit/4da62e4341215905907bc93587eb44c8abb56d3f)
Compare | [46cb4eddbb1f4bebdea970964d7449bacde8df1a](https://github.com/dotnet/runtime/commit/46cb4eddbb1f4bebdea970964d7449bacde8df1a)
Diff | [Diff](https://github.com/dotnet/runtime/compare/4da62e4341215905907bc93587eb44c8abb56d3f...46cb4eddbb1f4bebdea970964d7449bacde8df1a)


### Regressions in Benchstone.BenchI.IniArray

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[Test - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/Benchstone.BenchI.IniArray.Test.html>) | 58.24 ms | 109.01 ms | 1.87 | 0.04 | False | | | | [Trace](https://helixri107v0xdeko0k025g8.blob.core.windows.net/results-b95f7334d2444496b8/Collect%20Benchstone.BenchI.IniArray.Test/1/artifacts/BenchmarkDotNet.Artifacts/Benchstone.BenchI.IniArray.Test-20230214-034918.etl?sv=2021-08-06&se=2023-05-15T11%3A33%3A11Z&sr=c&sp=rl&sig=e5VxaESl3bw0LJUZmZEzCHSLW7NCcEe21MeZMhDwHmA%3D) | [Trace](https://helixri107v0xdeko0k025g8.blob.core.windows.net/results-bea229e8903c469988/Collect%20Benchstone.BenchI.IniArray.Test/1/artifacts/BenchmarkDotNet.Artifacts/Benchstone.BenchI.IniArray.Test-20230214-034914.etl?sv=2021-08-06&se=2023-05-15T11%3A33%3A11Z&sr=c&sp=rl&sig=rJjQxYE1UEeO0%2F5H2OTPG6Reie512Exd9IBnXoDdQaA%3D)

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/Benchstone.BenchI.IniArray_1.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/02_14_2023/refs/heads/main_x64_Windows%2010.0.18362_Regression/Benchstone.BenchI.IniArray.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchI.IniArray*'
```

<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-ae9ecf8a-b1c6-4498-8231-021ac6bf45afe190a45e2cf4eb7a6/6af15d02-0752-4071-bbd5-64a593ba70bc.zip?sv=2021-08-06&se=2023-03-11T14%3A08%3A32Z&sr=c&sp=rl&sig=94r8%2FKNiH9AqMOzurdBX7IDUBqKu0uBeaRBdxaAlheQ%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-3782df4a-c790-415e-8cae-6f8ec8ec0c03b7dbd21455f4bd590/d200d8d5-24a0-4ffa-ab02-4b764479521c.zip?sv=2021-08-06&se=2023-03-12T04%3A42%3A01Z&sr=c&sp=rl&sig=sBmMNaWF%2F4XyEt9OwIUJ3TJXWL8UmTXbe3DF1c6UIKo%3D>)
### Histogram

#### Benchstone.BenchI.IniArray.Test

```log

```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 109.0112425 > 61.063725187500005.
IsChangePoint: Marked as a change because one of 2/9/2023 4:10:34 PM, 2/14/2023 2:39:38 AM falls between 2/4/2023 10:21:07 PM and 2/14/2023 2:39:38 AM.
IsRegressionStdDev: Marked as regression because -141.4125909953871 (T) = (0 -108990158.125) / Math.Sqrt((1017796800282.5603 / (40)) + (1971298511332.8125 / (20))) is less than -2.001717484144427 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (40) + (20) - 2, .025) and -0.8413090760895805 = (59191669.4162309 - 108990158.125) / 59191669.4162309 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```### Baseline Jit Disasm

```assembly
; Benchstone.BenchI.IniArray.Test()
       sub       rsp,28
       mov       rcx,offset MT_System.Char[]
       mov       edx,10
       call      CORINFO_HELP_NEWARR_1_VC
       xor       edx,edx
M00_L00:
       xor       ecx,ecx
       nop       dword ptr [rax]
M00_L01:
       mov       r8d,ecx
       mov       word ptr [rax+r8*2+10],20
       inc       ecx
       cmp       ecx,10
       jl        short M00_L01
       inc       edx
       cmp       edx,989680
       jl        short M00_L00
       add       rsp,28
       ret
; Total bytes of code 65
```


### Compare Jit Disasm

```assembly
; Benchstone.BenchI.IniArray.Test()
       sub       rsp,28
       mov       rcx,offset MT_System.Char[]
       mov       edx,10
       call      CORINFO_HELP_NEWARR_1_VC
       xor       edx,edx
M00_L00:
       xor       ecx,ecx
       nop       dword ptr [rax]
M00_L01:
       mov       r8d,ecx
       mov       word ptr [rax+r8*2+10],20
       inc       ecx
       cmp       ecx,10
       jl        short M00_L01
       inc       edx
       cmp       edx,989680
       jl        short M00_L00
       add       rsp,28
       ret
; Total bytes of code 65
```




### 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	Windows 10.0.18362
Baseline	4da62e4341215905907bc93587eb44c8abb56d3f
Compare	46cb4eddbb1f4bebdea970964d7449bacde8df1a
Diff	Diff

Regressions in Benchstone.BenchI.IniArray #82103

Description

Run Information

Regressions in System.Collections.Tests.Add_Remove_SteadyState<Int32>

Repro

Payloads

Payloads

Histogram

System.Collections.Tests.Add_Remove_SteadyState<Int32>.ConcurrentStack(Count: 512)

Description of detection logic

Docs

Run Information

Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Int

Repro

Payloads

Payloads

Histogram

System.Runtime.Intrinsics.Tests.Perf_Vector128Int.GetHashCodeBenchmark

Description of detection logic

Docs

Run Information