[Perf] Linux/arm64: 25 Regressions on 1/3/2024 11:26:14 PM

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[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%20None%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L99-#L100>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 548.93 ns | 627.03 ns | 1.14 | 0.01 | True | | |
|<ul><li>[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>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L102-#L103>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 777.39 ns | 955.31 ns | 1.23 | 0.02 | True | | |
|<ul><li>[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%20None%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L102-#L103>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 550.64 ns | 624.74 ns | 1.13 | 0.01 | True | | |
|<ul><li>[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%20None%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L99-#L100>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 548.20 ns | 626.93 ns | 1.14 | 0.01 | True | | |
|<ul><li>[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%20IgnoreNonSpace%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L102-#L103>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UUW/aMBB+n7T/4LckW4BAy6iQMo2y0rEVygjTHqYJmeRIPMV2dHZaUk377bMDYoVKU14i3/n7vvt8ussMqCoROAitXv0mjxkgkOuS5ckSCknCkDiJ1AJ0B0uhGQfnFHWNVMRZjUPYqk4GNFEdTpk4A44wzpiGWJtqhAniOrt3l45PHIrcHLwjegVKzykHq/nBiSqlgbdvc7mhOXuimknRthDVjjQykUZAjXL7jio9FQns7rfr7xKT9VzqiSxF4t4XlqOGxAXR+hb5ZJoKiTCXIipoDD6Z0FyB5/3zuyzFWIotS0us66kfzljyguV1NJMJOD9J+Ic4mhl44rz+H9OkvjCRHBicxSifEZgCXujKfUEcSe01gE2lussfeN3hJvjP6kakTEATrBVugptJIRvatdCp0IAFgvk2oSxSuaqKRoYXWaVYTPMFSi5tpinxU7VBlpzMWBPasrdsWuFmVwCa7RH1aJ8O+9iMqWnGShaH0+nirAwt0pQX5D1JqAa7hG4v6F20ukGre7UKBsP+1bA7aAe9waDfv3wbBMMgsCVUyTlF9gSEYrrmdOfWgtaBT954ZFOdVfCPy+fbUf5aQglGp0D5yyzuC/ASVJnrEOs1e/aSfX70AEhTo3Th+aSWssLhBBmIJK+OGdusOrCW0dwBEvvGOKOoySPTGXGVaR6o8MjxyS6WeclFeO6p2udVuDdhgJrpHELno2md+d1Uh9BSiCuUZ3OqyJkO6Q6U9xdAPZPCEAUAAA==>)</li></ul> | 550.88 ns | 624.49 ns | 1.13 | 0.00 | True | | |
|<ul><li>[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>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L99-#L100>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 764.65 ns | 918.99 ns | 1.20 | 0.02 | False | | |
|<ul><li>[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%20None%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L102-#L103>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 551.30 ns | 622.67 ns | 1.13 | 0.01 | True | | |
|<ul><li>[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%20IgnoreNonSpace%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L99-#L100>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 548.58 ns | 627.24 ns | 1.14 | 0.01 | True | | |
|<ul><li>[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>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L99-#L100>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 765.15 ns | 914.83 ns | 1.20 | 0.03 | False | | |

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![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Globalization.Tests.StringSearch_8.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Globalization.Tests.StringSearch_9.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Globalization.Tests.StringSearch.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```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-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, None, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, IgnoreCase, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, None, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, None, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, IgnoreCase, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, None, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreCase, False))

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFourValues(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L87-#L88>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 949.71 ns | 1.20 μs | 1.27 | 0.00 | True | | |
|<ul><li>[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFourValues(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L87-#L88>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 59.72 ns | 79.48 ns | 1.33 | 0.00 | True | | |
|<ul><li>[IndexOfAnyFiveValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFiveValues(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L90-#L91>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 70.45 ns | 91.03 ns | 1.29 | 0.01 | True | | |
|<ul><li>[IndexOfAnyFourValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFourValues(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L87-#L88>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.17 ns | 11.76 ns | 1.16 | 0.10 | False | | |
|<ul><li>[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).SequenceEqual(Size%3a%2033).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L52-#L53>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.19 ns | 14.66 ns | 1.44 | 0.37 | False | | |
|<ul><li>[IndexOfAnyFiveValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFiveValues(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L90-#L91>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.12 μs | 1.37 μs | 1.23 | 0.01 | True | | |
|<ul><li>[IndexOfAnyFiveValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Memory.Span(Int32).IndexOfAnyFiveValues(Size%3a%204).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L90-#L91>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.71 ns | 13.54 ns | 1.16 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_5.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_6.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29_7.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.Span%28Int32%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Int32&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFourValues(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFourValues(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFiveValues(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFourValues(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.SequenceEqual(Size: 33)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFiveValues(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Int32&gt;.IndexOfAnyFiveValues(Size: 4)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsTrue&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FrozenSet - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.ContainsTrue(String).FrozenSet(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L272-#L281>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.81 μs | 10.39 μs | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsTrue%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsTrue%28String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrue&lt;String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.ContainsTrue&lt;String&gt;.FrozenSet(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateForEach&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadOnlySpan - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.IterateForEach(String).ReadOnlySpan(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L74-#L83>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 205.29 ns | 222.18 ns | 1.08 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateForEach%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateForEach%28String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateForEach&lt;String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.IterateForEach&lt;String&gt;.ReadOnlySpan(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.TryGetValueFalse&lt;String, String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FrozenDictionaryOptimized - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.TryGetValueFalse(String%2c%20String).FrozenDictionaryOptimized(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueFalse.cs#L132-#L141>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.30 μs | 9.98 μs | 1.07 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.TryGetValueFalse%28String%2C%20String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.TryGetValueFalse%28String%2C%20String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueFalse&lt;String, String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.TryGetValueFalse&lt;String, String&gt;.FrozenDictionaryOptimized(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateFor&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadOnlySpan - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.IterateFor(String).ReadOnlySpan(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateFor.cs#L59-#L68>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 205.29 ns | 222.17 ns | 1.08 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateFor%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateFor%28String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```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-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.IterateFor&lt;String&gt;.ReadOnlySpan(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.ReadOnlySpan

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[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>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySpan.cs#L45-#L64>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 281.85 ns | 305.54 ns | 1.08 | 0.00 | True | | |
|<ul><li>[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%22foobardzsdzs%22%2c%20value%3a%20%22rddzs%22%2c%20comparisonType%3a%20InvariantCulture).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySpan.cs#L45-#L64>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 39.53 ns | 41.72 ns | 1.06 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.ReadOnlySpan_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.ReadOnlySpan_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Memory.ReadOnlySpan.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```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-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "x", comparisonType: InvariantCultureIgnoreCase)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySpan.IndexOfString(input: "foobardzsdzs", value: "rddzs", comparisonType: InvariantCulture)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsKeyFalse&lt;String, String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.ContainsKeyFalse(String%2c%20String).FrozenDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsKeyFalse.cs#L132-#L141>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.30 μs | 9.77 μs | 1.05 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsKeyFalse%28String%2C%20String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsKeyFalse%28String%2C%20String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyFalse&lt;String, String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.ContainsKeyFalse&lt;String, String&gt;.FrozenDictionary(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsKeyTrue&lt;String, String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.ContainsKeyTrue(String%2c%20String).FrozenDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsKeyTrue.cs#L130-#L139>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.05 μs | 10.68 μs | 1.06 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsKeyTrue%28String%2C%20String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.ContainsKeyTrue%28String%2C%20String%29.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyTrue&lt;String, String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.ContainsKeyTrue&lt;String, String&gt;.FrozenDictionary(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a](https://github.com/dotnet/runtime/commit/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a)
Compare | [db90a849eab60d9843b8151ab14ba998faee3825](https://github.com/dotnet/runtime/commit/db90a849eab60d9843b8151ab14ba998faee3825)
Diff | [Diff](https://github.com/dotnet/runtime/compare/653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a...db90a849eab60d9843b8151ab14ba998faee3825)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Perf_DefaultFrozenDictionary

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[TryGetValue_False_FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_False_FrozenDictionary(Count%3a%201000).html>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 19.47 μs | 21.31 μs | 1.09 | 0.01 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.Perf_DefaultFrozenDictionary_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_18_2024/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.Perf_DefaultFrozenDictionary.html>)

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Perf_DefaultFrozenDictionary*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-d6de431f-8ce0-45cb-8152-c4aa733606d4a005488083748cbaf/acaf8050-9a1f-4e2d-80e1-e0a4e8c7208b.zip?sv=2021-08-06&se=2024-02-02T07%3A45%3A31Z&sr=c&sp=rl&sig=aS2dZq4ef16TV2aQGAzBOqq6%2BSNhVyfnDFh0QwNPv8k%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-9ed82843-f806-4c14-964e-5138013bc29f7ed545e343d42a182/05793ed5-e305-444e-839e-c92c97a3582d.zip?sv=2021-08-06&se=2024-02-03T08%3A22%3A55Z&sr=c&sp=rl&sig=cGgbG7VEL8b8jxE%2FgQFEdAMs2cT7d5AQkmUPmJBSF%2F0%3D>)
### System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms



### 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>

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	653739cc0e4f6c7a44e4cda6c9ac8bb2a265505a
Compare	db90a849eab60d9843b8151ab14ba998faee3825
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	548.93 ns	627.03 ns	1.14	0.01	True
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	777.39 ns	955.31 ns	1.23	0.02	True
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	550.64 ns	624.74 ns	1.13	0.01	True
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	548.20 ns	626.93 ns	1.14	0.01	True
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	550.88 ns	624.49 ns	1.13	0.00	True
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	764.65 ns	918.99 ns	1.20	0.02	False
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	551.30 ns	622.67 ns	1.13	0.01	True
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	548.58 ns	627.24 ns	1.14	0.01	True
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	765.15 ns	914.83 ns	1.20	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IndexOfAnyFourValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	949.71 ns	1.20 μs	1.27	0.00	True
IndexOfAnyFourValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	59.72 ns	79.48 ns	1.33	0.00	True
IndexOfAnyFiveValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	70.45 ns	91.03 ns	1.29	0.01	True
IndexOfAnyFourValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	10.17 ns	11.76 ns	1.16	0.10	False
SequenceEqual - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	10.19 ns	14.66 ns	1.44	0.37	False
IndexOfAnyFiveValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	1.12 μs	1.37 μs	1.23	0.01	True
IndexOfAnyFiveValues - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	11.71 ns	13.54 ns	1.16	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IndexOfString - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	281.85 ns	305.54 ns	1.08	0.00	True
IndexOfString - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	39.53 ns	41.72 ns	1.06	0.01	False

[Perf] Linux/arm64: 25 Regressions on 1/3/2024 11:26:14 PM #27493

Description

Run Information

Regressions in System.Globalization.Tests.StringSearch

Repro

Payloads

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, None, False))

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, None, False))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (, None, False))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, False))

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (, None, False))

ETL Files

Histogram

JIT Disasms

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreNonSpace, False))

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Memory.Span<Int32>

Repro

Payloads

System.Memory.Span<Int32>.IndexOfAnyFourValues(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFourValues(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFiveValues(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFourValues(Size: 4)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.SequenceEqual(Size: 33)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFiveValues(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Int32>.IndexOfAnyFiveValues(Size: 4)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.ContainsTrue<String>

Repro

Payloads