[Perf] Linux/arm64: 6 Improvements on 12/30/2022 6:15:13 AM

### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [96b849ecfc8c535eafd01e0ae82c8a54488aacfb](https://github.com/dotnet/runtime/commit/96b849ecfc8c535eafd01e0ae82c8a54488aacfb)
Compare | [c71ad8cfdd0065395b01b3af6c06a0214f04c249](https://github.com/dotnet/runtime/commit/c71ad8cfdd0065395b01b3af6c06a0214f04c249)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96b849ecfc8c535eafd01e0ae82c8a54488aacfb...c71ad8cfdd0065395b01b3af6c06a0214f04c249)


### Improvements in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(%2c%20IgnoreCase%2c%20False)).html>) | 1.18 μs | 1.00 μs | 0.85 | 0.00 | False | | |
[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(%2c%20IgnoreCase%2c%20False)).html>) | 1.20 μs | 1.02 μs | 0.85 | 0.00 | False | | |
[IndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(en-US%2c%20IgnoreCase%2c%20False)).html>) | 1.18 μs | 1.01 μs | 0.85 | 0.00 | False | | |
[LastIndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options%3a%20(en-US%2c%20IgnoreCase%2c%20False)).html>) | 1.20 μs | 1.02 μs | 0.85 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Globalization.Tests.StringSearch_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Globalization.Tests.StringSearch_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Globalization.Tests.StringSearch_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Globalization.Tests.StringSearch_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-117ae574-fe45-4438-aeb2-162ffa3ee08e336ab08a2b4467a84/c524d607-413a-4d25-bb24-8cfe4fe89912.zip?sv=2021-08-06&se=2023-01-28T20%3A37%3A58Z&sr=c&sp=rl&sig=Ai01LOsZGlhxPJGyMOUdA0cY9icJIptzDi%2Fmd6pYaRs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-832e6081-ffac-4fcd-838d-2791ae2e21d06025c44f75843b58d/c1f5c18b-75d8-4617-93e3-cf838c9d4d09.zip?sv=2021-08-06&se=2023-01-29T19%3A17%3A47Z&sr=c&sp=rl&sig=0gRk2s9LiPNmCDLm288osdAkQevXM5e2m6pW9kwSZuM%3D>)
### Histogram

#### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

```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 1.0040841132093683 < 1.1229246778583666.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 162.42361150282548 (T) = (0 -999.5146445970914) / Math.Sqrt((19.140468119563387 / (299)) + (17.636679460178275 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.15321696047839586 = (1180.366868426857 - 999.5146445970914) / 1180.366868426857 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, IgnoreCase, False))

```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 1.020617028224483 < 1.141986533445799.
IsChangePoint: Marked as a change because one of 9/29/2022 6:03:53 PM, 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 156.71332440767333 (T) = (0 -1019.3521188819607) / Math.Sqrt((40.539887253985206 / (299)) + (18.63013192177592 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.15286107377579347 = (1203.2880172622072 - 1019.3521188819607) / 1203.2880172622072 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

```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 1.0074833870274913 < 1.123022673743787.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 232.6613486176684 (T) = (0 -1001.4183359018126) / Math.Sqrt((14.336125943048268 / (299)) + (8.272767648232213 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.1524584579128877 = (1181.5566390241725 - 1001.4183359018126) / 1181.5566390241725 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

```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 1.0209920412015758 < 1.1419688314542868.
IsChangePoint: Marked as a change because one of 9/29/2022 6:03:53 PM, 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 229.57243387723688 (T) = (0 -1017.9839940642762) / Math.Sqrt((16.936896254610456 / (299)) + (9.03184969411989 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.15471979573289893 = (1204.3154316466191 - 1017.9839940642762) / 1204.3154316466191 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

</details>
### Run Information

Architecture | arm64
-- | --
OS | ubuntu 20.04
Baseline | [96b849ecfc8c535eafd01e0ae82c8a54488aacfb](https://github.com/dotnet/runtime/commit/96b849ecfc8c535eafd01e0ae82c8a54488aacfb)
Compare | [c71ad8cfdd0065395b01b3af6c06a0214f04c249](https://github.com/dotnet/runtime/commit/c71ad8cfdd0065395b01b3af6c06a0214f04c249)
Diff | [Diff](https://github.com/dotnet/runtime/compare/96b849ecfc8c535eafd01e0ae82c8a54488aacfb...c71ad8cfdd0065395b01b3af6c06a0214f04c249)


### Improvements in System.Memory.ReadOnlySpan

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IndexOfString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.ReadOnlySpan.IndexOfString(input%3a%20%22AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAA%22%2c%20value%3a%20%22x%22%2c%20comparisonType%3a%20InvariantCultureIgno.html>) | 309.46 ns | 285.92 ns | 0.92 | 0.00 | False | | |
[IndexOfString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.ReadOnlySpan.IndexOfString(input%3a%20%22ABCDE%22%2c%20value%3a%20%22c%22%2c%20comparisonType%3a%20InvariantCultureIgnoreCase).html>) | 28.40 ns | 26.43 ns | 0.93 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Memory.ReadOnlySpan_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Memory.ReadOnlySpan_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_05_2023/refs/heads/main_arm64_ubuntu%2020.04_Improvement/System.Memory.ReadOnlySpan.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.ReadOnlySpan*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-117ae574-fe45-4438-aeb2-162ffa3ee08e336ab08a2b4467a84/c524d607-413a-4d25-bb24-8cfe4fe89912.zip?sv=2021-08-06&se=2023-01-28T20%3A37%3A58Z&sr=c&sp=rl&sig=Ai01LOsZGlhxPJGyMOUdA0cY9icJIptzDi%2Fmd6pYaRs%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-832e6081-ffac-4fcd-838d-2791ae2e21d06025c44f75843b58d/c1f5c18b-75d8-4617-93e3-cf838c9d4d09.zip?sv=2021-08-06&se=2023-01-29T19%3A17%3A47Z&sr=c&sp=rl&sig=0gRk2s9LiPNmCDLm288osdAkQevXM5e2m6pW9kwSZuM%3D>)
### Histogram

#### System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "x", comparisonType: InvariantCultureIgnoreCase)

```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 285.9234344461546 < 293.8831655749665.
IsChangePoint: Marked as a change because one of 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 821.3111011353799 (T) = (0 -285.925410907568) / Math.Sqrt((0.20295049304693738 / (299)) + (0.0019462132932207307 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.07550933339078772 = (309.278850760351 - 285.925410907568) / 309.278850760351 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Memory.ReadOnlySpan.IndexOfString(input: "ABCDE", value: "c", comparisonType: InvariantCultureIgnoreCase)

```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 26.42832663780327 < 27.006086564239755.
IsChangePoint: Marked as a change because one of 9/29/2022 6:03:53 PM, 10/25/2022 5:34:05 PM, 12/30/2022 6:06:02 AM, 1/5/2023 2:25:12 AM falls between 12/27/2022 1:08:06 PM and 1/5/2023 2:25:12 AM.
IsImprovementStdDev: Marked as improvement because 107.48567099128442 (T) = (0 -26.461943325237204) / Math.Sqrt((0.044857853071577636 / (299)) + (0.0017582272583124413 / (15))) is greater than 1.9675964973877862 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (15) - 2, .975) and 0.06226726564832272 = (28.219067497448798 - 26.461943325237204) / 28.219067497448798 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>




Provide feedback

Saved searches

Use saved searches to filter your results more quickly

[Perf] Linux/arm64: 6 Improvements on 12/30/2022 6:15:13 AM #11347

Run Information

Improvements in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Memory.ReadOnlySpan

Repro

Payloads

Histogram

System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "x", comparisonType: InvariantCultureIgnoreCase)

Description of detection logic

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Architecture	arm64
OS	ubuntu 20.04
Baseline	96b849ecfc8c535eafd01e0ae82c8a54488aacfb
Compare	c71ad8cfdd0065395b01b3af6c06a0214f04c249
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Edge Detector
IndexOf_Word_NotFound - Duration of single invocation	1.18 μs	1.00 μs	0.85	False
LastIndexOf_Word_NotFound - Duration of single invocation	1.20 μs	1.02 μs	0.85	False
IndexOf_Word_NotFound - Duration of single invocation	1.18 μs	1.01 μs	0.85	False
LastIndexOf_Word_NotFound - Duration of single invocation	1.20 μs	1.02 μs	0.85	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio	Baseline ETL	Compare ETL
IndexOfString - Duration of single invocation	309.46 ns	285.92 ns	0.92	0.00	False
IndexOfString - Duration of single invocation	28.40 ns	26.43 ns	0.93	0.00	False

[Perf] Linux/arm64: 6 Improvements on 12/30/2022 6:15:13 AM #11347

Description

Run Information

Improvements in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

Description of detection logic

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Memory.ReadOnlySpan

Repro

Payloads

Histogram

System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "x", comparisonType: InvariantCultureIgnoreCase)

Description of detection logic

Description of detection logic

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions