[Perf] Alpine/x64: 5 Improvements on 11/24/2022 9:42:44 PM

### Run Information

Architecture | x64
-- | --
OS | alpine 3.15
Baseline | [ac03fbd184b182a6632a50bbe70bc733e487264c](https://github.com/dotnet/runtime/commit/ac03fbd184b182a6632a50bbe70bc733e487264c)
Compare | [4832236b4820ca83bbc9ce96003c2029b85c6ce2](https://github.com/dotnet/runtime/commit/4832236b4820ca83bbc9ce96003c2029b85c6ce2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac03fbd184b182a6632a50bbe70bc733e487264c...4832236b4820ca83bbc9ce96003c2029b85c6ce2)


### 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
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ToLowerInvariant - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Tests.Perf_String.ToLowerInvariant(s%3a%20%22This%20is%20a%20much%20longer%20piece%20of%20text%20that%20might%20benefit%20more%20from%20vectorization.%22).html>) | 44.41 ns | 23.78 ns | 0.54 | 0.07 | False | | |
[ToUpper - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Tests.Perf_String.ToUpper(s%3a%20%22This%20is%20a%20much%20longer%20piece%20of%20text%20that%20might%20benefit%20more%20from%20vectorization.%22).html>) | 47.54 ns | 30.28 ns | 0.64 | 0.16 | False | | |
[ToLower - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Tests.Perf_String.ToLower(s%3a%20%22This%20is%20a%20much%20longer%20piece%20of%20text%20that%20might%20benefit%20more%20from%20vectorization.%22).html>) | 47.92 ns | 30.10 ns | 0.63 | 0.12 | False | | |
[CtorCharCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Tests.Perf_String.CtorCharCount(size%3a%2010).html>) | 10.81 ns | 9.62 ns | 0.89 | 0.09 | False | | |
[ToUpperInvariant - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_alpine 3.15/System.Tests.Perf_String.ToUpperInvariant(s%3a%20%22This%20is%20a%20much%20longer%20piece%20of%20text%20that%20might%20benefit%20more%20from%20vectorization.%22).html>) | 40.31 ns | 23.94 ns | 0.59 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/11_29_2022/refs/heads/main_x64_alpine%203.15_Improvement/System.Tests.Perf_String.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_String*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-e3db8544-27a5-4bad-9224-7ef2ef92df986682b73216d497391/9bf1d033-43ff-49e4-986a-32fd0fdb0e42.zip?sv=2021-08-06&se=2022-12-24T18%3A53%3A01Z&sr=c&sp=rl&sig=Dk0oZvpkbPB2HHD84NacS%2Fs3xtWWBzV6EMELYTFIah0%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-306b6477-252b-4faa-ac67-068e7456e33a39a2bec97254f3a99/9b7ebbc5-f4a1-423c-b1bc-e1145e2b8459.zip?sv=2021-08-06&se=2022-12-25T09%3A18%3A09Z&sr=c&sp=rl&sig=ow5KoI3wZ8OZVGh4GRm2HNyx1pSpPS2Su%2BO8DCqyaRs%3D>)
### Histogram

#### System.Tests.Perf_String.ToLowerInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.")

```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 23.779461584760273 < 38.097726695373446.
IsChangePoint: Marked as a change because one of 11/24/2022 8:21:24 PM, 11/29/2022 1:43:29 AM falls between 11/20/2022 12:28:28 PM and 11/29/2022 1:43:29 AM.
IsImprovementStdDev: Marked as improvement because 176.19668218180027 (T) = (0 -23.88412690355911) / Math.Sqrt((1.439354111635046 / (299)) + (0.0800362272167984 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.4263468718045812 = (41.63513755898638 - 23.88412690355911) / 41.63513755898638 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpper(s: "This is a much longer piece of text that might benefit more from vectorization.")

```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 30.281007624164626 < 45.82022974836062.
IsChangePoint: Marked as a change because one of 11/24/2022 8:21:24 PM, 11/29/2022 1:43:29 AM falls between 11/20/2022 12:28:28 PM and 11/29/2022 1:43:29 AM.
IsImprovementStdDev: Marked as improvement because 77.56705377190865 (T) = (0 -31.031081314072047) / Math.Sqrt((2.124862787030778 / (299)) + (0.713584971783942 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.3688891607324463 = (49.168988049841914 - 31.031081314072047) / 49.168988049841914 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToLower(s: "This is a much longer piece of text that might benefit more from vectorization.")

```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 30.104827840951614 < 45.89687030275319.
IsChangePoint: Marked as a change because one of 11/24/2022 8:21:24 PM, 11/29/2022 1:43:29 AM falls between 11/20/2022 12:28:28 PM and 11/29/2022 1:43:29 AM.
IsImprovementStdDev: Marked as improvement because 30.53962866252476 (T) = (0 -31.740327595964168) / Math.Sqrt((1.9168907671293915 / (299)) + (4.796018315261271 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.3546254595072389 = (49.181251512849514 - 31.740327595964168) / 49.181251512849514 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.CtorCharCount(size: 10)

```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 9.62352235842726 < 10.319935938927934.
IsChangePoint: Marked as a change because one of 11/23/2022 8:02:34 PM, 11/29/2022 1:43:29 AM falls between 11/20/2022 12:28:28 PM and 11/29/2022 1:43:29 AM.
IsImprovementStdDev: Marked as improvement because 12.287370409546117 (T) = (0 -9.749865599623584) / Math.Sqrt((0.08869693275739093 / (299)) + (0.08627999317966933 / (21))) is greater than 1.967451947860886 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (21) - 2, .975) and 0.07718921182392045 = (10.565400539902697 - 9.749865599623584) / 10.565400539902697 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Tests.Perf_String.ToUpperInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.")

```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 23.941916612861366 < 37.95455504560814.
IsChangePoint: Marked as a change because one of 11/24/2022 8:21:24 PM, 11/29/2022 1:43:29 AM falls between 11/20/2022 12:28:28 PM and 11/29/2022 1:43:29 AM.
IsImprovementStdDev: Marked as improvement because 65.4140410880732 (T) = (0 -24.436214223541604) / Math.Sqrt((1.4712127062823668 / (299)) + (0.9286786357331351 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.408996996717935 = (41.347022075755945 - 24.436214223541604) / 41.347022075755945 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>


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[Perf] Alpine/x64: 5 Improvements on 11/24/2022 9:42:44 PM #10118

Run Information

Improvements in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.ToLowerInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.")

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Architecture	x64
OS	alpine 3.15
Baseline	ac03fbd184b182a6632a50bbe70bc733e487264c
Compare	4832236b4820ca83bbc9ce96003c2029b85c6ce2
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToLowerInvariant - Duration of single invocation	44.41 ns	23.78 ns	0.54	0.07	False
ToUpper - Duration of single invocation	47.54 ns	30.28 ns	0.64	0.16	False
ToLower - Duration of single invocation	47.92 ns	30.10 ns	0.63	0.12	False
CtorCharCount - Duration of single invocation	10.81 ns	9.62 ns	0.89	0.09	False
ToUpperInvariant - Duration of single invocation	40.31 ns	23.94 ns	0.59	0.06	False

[Perf] Alpine/x64: 5 Improvements on 11/24/2022 9:42:44 PM #10118

Description

Run Information

Improvements in System.Tests.Perf_String

Repro

Payloads

Histogram

System.Tests.Perf_String.ToLowerInvariant(s: "This is a much longer piece of text that might benefit more from vectorization.")

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions