[Perf] Linux/x64: 24 Regressions on 2/14/2025 8:07:17 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
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_x64_ubuntu 22.04/System.Memory.ReadOnlySpan.IndexOfString(input%3a%20%22AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySpan.cs#L45-#L65>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.68 ns | 14.90 ns | 1.09 | 0.17 | False | | |
|<ul><li>[IndexOfString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Memory.ReadOnlySpan.IndexOfString(input%3a%20%22Hello%20WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello%20WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello%20Worldbbbbbbbbbbbbbbbbbb.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/ReadOnlySpan.cs#L45-#L65>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 9.68 ns | 11.25 ns | 1.16 | 0.21 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.ReadOnlySpan_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.ReadOnlySpan_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_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>

### System.Memory.ReadOnlySpan.IndexOfString(input: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAXAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", value: "X", comparisonType: Ordinal)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.ReadOnlySpan.IndexOfString(input: "Hello WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello Worldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylong!xyz", value: "~", comparisonType: Ordinal)

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Version

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToString2 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_Version.ToString2.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.Version.cs#L51-#L52>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 21.32 ns | 23.54 ns | 1.10 | 0.14 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Version_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Version.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.Tests.Perf_Version*'
```

<details>

### System.Tests.Perf_Version.ToString2

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Document.Tests.Perf_EnumerateObject

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[PropertyIndexer - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase%3a%20StringProperties).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Document/EnumerateObject.cs#L59-#L64>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.71 μs | 1.86 μs | 1.08 | 0.02 | False | | |
|<ul><li>[PropertyIndexer - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase%3a%20NumericProperties).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Document/EnumerateObject.cs#L59-#L64>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.71 μs | 1.86 μs | 1.09 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_EnumerateObject_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_EnumerateObject_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Document.Tests.Perf_EnumerateObject.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.Text.Json.Document.Tests.Perf_EnumerateObject*'
```

<details>

### System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase: StringProperties)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase: NumericProperties)

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Enum

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IsDefined_Generic_Flags - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_Enum.IsDefined_Generic_Flags.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 4.80 ns | 6.03 ns | 1.26 | 0.26 | False | | |
|<ul><li>[GetName_Generic_Flags - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_Enum.GetName_Generic_Flags.html>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.61 ns | 7.17 ns | 1.28 | 0.42 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Enum_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Enum_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_Enum.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.Tests.Perf_Enum*'
```

<details>

### System.Tests.Perf_Enum.IsDefined_Generic_Flags

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Enum.GetName_Generic_Flags

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


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

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[StartsWith - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Memory.Span(Char).StartsWith(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L61-#L62>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.33 ns | 9.45 ns | 1.13 | 0.08 | False | | |
|<ul><li>[SequenceEqual - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Memory.Span(Char).SequenceEqual(Size%3a%20512).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> | 15.20 ns | 16.83 ns | 1.11 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Char%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Char%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Char%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;Char&gt;*'
```

<details>

### System.Memory.Span&lt;Char&gt;.StartsWith(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Char&gt;.SequenceEqual(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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Strings

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20True%2c%20Escaped%3a%20AllEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 59.22 ms | 63.18 ms | 1.07 | 0.10 | False | | |
|<ul><li>[WriteStringsUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted%3a%20False%2c%20SkipValidation%3a%20False%2c%20Escaped%3a%20AllEscaped).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Strings.cs#L100-#L116>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 58.61 ms | 62.60 ms | 1.07 | 0.18 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Strings_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Strings_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Json.Tests.Perf_Strings.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.Text.Json.Tests.Perf_Strings*'
```

<details>

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: True, Escaped: AllEscaped)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: False, Escaped: AllEscaped)

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_String

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToLower - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_String.ToLower(s%3a%20%22test%22).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.String.cs#L231-#L237>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.38 ns | 8.60 ns | 1.17 | 0.11 | False | | |
|<ul><li>[TrimStart_CharArr - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_String.TrimStart_CharArr(s%3a%20%22%20Test%22%2c%20c%3a%20%5b%27%20%27%2c%20%27%e2%80%85%27%5d).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime/Perf.String.cs#L153-#L158>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.36 ns | 15.03 ns | 1.13 | 0.24 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_String_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_String_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Tests.Perf_String.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.Tests.Perf_String*'
```

<details>

### System.Tests.Perf_String.ToLower(s: "test")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_String.TrimStart_CharArr(s: " Test", c: [' ', ' '])

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Memory.Span&lt;Byte&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_x64_ubuntu 22.04/System.Memory.Span(Byte).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> | 10.02 ns | 12.57 ns | 1.25 | 0.11 | False | | |
|<ul><li>[IndexOfAnyThreeValues - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Memory.Span(Byte).IndexOfAnyThreeValues(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Memory/Span.cs#L84-#L85>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.27 ns | 9.24 ns | 1.27 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Byte%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Byte%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Memory.Span%28Byte%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;Byte&gt;*'
```

<details>

### System.Memory.Span&lt;Byte&gt;.IndexOfAnyFourValues(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Memory.Span&lt;Byte&gt;.IndexOfAnyThreeValues(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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Tests.Perf_StringBuilder

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Append_Char_Capacity - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length%3a%20100000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text/Perf.StringBuilder.cs#L82-#L95>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 185.11 μs | 239.24 μs | 1.29 | 0.00 | False | | |
|<ul><li>[Append_Char_Capacity - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text/Perf.StringBuilder.cs#L82-#L95>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 124.32 ns | 182.10 ns | 1.46 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Tests.Perf_StringBuilder_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Tests.Perf_StringBuilder_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Text.Tests.Perf_StringBuilder.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.Text.Tests.Perf_StringBuilder*'
```

<details>

### System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100)

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Equals - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Numerics.Tests.Perf_BigInteger.Equals(arguments%3a%20259%20bytes%2c%20Same).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Numerics/Perf.BigInteger.cs#L146-#L149>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 5.24 ns | 6.90 ns | 1.32 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Numerics.Tests.Perf_BigInteger_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Numerics.Tests.Perf_BigInteger.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.Numerics.Tests.Perf_BigInteger*'
```

<details>

### System.Numerics.Tests.Perf_BigInteger.Equals(arguments: 259 bytes, Same)

#### 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
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_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L102-#L104>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 20.91 ns | 25.76 ns | 1.23 | 0.32 | False | | |
|<ul><li>[IsPrefix_FirstHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.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> | 7.16 ns | 8.33 ns | 1.16 | 0.28 | False | | |
|<ul><li>[IsSuffix_SecondHalf - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options%3a%20(en-US%2c%20Ordinal%2c%20False)).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Globalization/StringSearch.cs#L94-#L96>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 7.29 ns | 8.48 ns | 1.16 | 0.18 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringSearch_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringSearch_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Globalization.Tests.StringSearch_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_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>

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IsPrefix_FirstHalf(Options: (en-US, Ordinal, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.IsSuffix_SecondHalf(Options: (en-US, Ordinal, 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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


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

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.AddGivenSize(String).Stack(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Add/AddGivenSize.cs#L106-#L114>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.37 μs | 1.57 μs | 1.15 | 0.00 | False | | |
|<ul><li>[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.AddGivenSize(String).List(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Add/AddGivenSize.cs#L28-#L36>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.70 μs | 1.83 μs | 1.08 | 0.11 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.AddGivenSize%28String%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.AddGivenSize%28String%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.AddGivenSize%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.AddGivenSize&lt;String&gt;*'
```

<details>

### System.Collections.AddGivenSize&lt;String&gt;.Stack(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.AddGivenSize&lt;String&gt;.List(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 | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [109c9469a7f76bdc98300bd9c7bb4eaf014be971](https://github.com/dotnet/runtime/commit/109c9469a7f76bdc98300bd9c7bb4eaf014be971)
Compare | [8d06783a1eb8bb30a988d2e489cacd2d48860e90](https://github.com/dotnet/runtime/commit/8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Diff | [Diff](https://github.com/dotnet/runtime/compare/109c9469a7f76bdc98300bd9c7bb4eaf014be971...8d06783a1eb8bb30a988d2e489cacd2d48860e90)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.ContainsKeyTrue(Int32%2c%20Int32).IDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsKeyTrue.cs#L61-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.15 μs | 2.83 μs | 1.32 | 0.29 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.ContainsKeyTrue%28Int32%2C%20Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/02_18_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.ContainsKeyTrue%28Int32%2C%20Int32%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;Int32, Int32&gt;*'
```

<details>

### System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;.IDictionary(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>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	109c9469a7f76bdc98300bd9c7bb4eaf014be971
Compare	8d06783a1eb8bb30a988d2e489cacd2d48860e90
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

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	13.68 ns	14.90 ns	1.09	0.17	False
IndexOfString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.68 ns	11.25 ns	1.16	0.21	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
PropertyIndexer - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.71 μs	1.86 μs	1.08	0.02	False
PropertyIndexer - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.71 μs	1.86 μs	1.09	0.02	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IsDefined_Generic_Flags - Duration of single invocation ADX - Test Multi Config Graph	4.80 ns	6.03 ns	1.26	0.26	False
GetName_Generic_Flags - Duration of single invocation ADX - Test Multi Config Graph	5.61 ns	7.17 ns	1.28	0.42	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
StartsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	8.33 ns	9.45 ns	1.13	0.08	False
SequenceEqual - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.20 ns	16.83 ns	1.11	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	59.22 ms	63.18 ms	1.07	0.10	False
WriteStringsUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	58.61 ms	62.60 ms	1.07	0.18	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ToLower - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.38 ns	8.60 ns	1.17	0.11	False
TrimStart_CharArr - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.36 ns	15.03 ns	1.13	0.24	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IndexOfAnyFourValues - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.02 ns	12.57 ns	1.25	0.11	False
IndexOfAnyThreeValues - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.27 ns	9.24 ns	1.27	0.19	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Append_Char_Capacity - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	185.11 μs	239.24 μs	1.29	0.00	False
Append_Char_Capacity - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	124.32 ns	182.10 ns	1.46	0.13	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	20.91 ns	25.76 ns	1.23	0.32	False
IsPrefix_FirstHalf - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.16 ns	8.33 ns	1.16	0.28	False
IsSuffix_SecondHalf - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.29 ns	8.48 ns	1.16	0.18	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Stack - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.37 μs	1.57 μs	1.15	0.00	False
List - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.70 μs	1.83 μs	1.08	0.11	False

[Perf] Linux/x64: 24 Regressions on 2/14/2025 8:07:17 PM +00:00 #112658

Description

Run Information

Regressions in System.Memory.ReadOnlySpan

Repro

ETL Files

Histogram

JIT Disasms

System.Memory.ReadOnlySpan.IndexOfString(input: "Hello WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello WorldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylongHello Worldbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbareallyreallylong!xyz", value: "~", comparisonType: Ordinal)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Version

Repro

System.Tests.Perf_Version.ToString2

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Document.Tests.Perf_EnumerateObject

Repro

System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase: StringProperties)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Document.Tests.Perf_EnumerateObject.PropertyIndexer(TestCase: NumericProperties)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_Enum

Repro

System.Tests.Perf_Enum.IsDefined_Generic_Flags

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_Enum.GetName_Generic_Flags

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Memory.Span<Char>

Repro

System.Memory.Span<Char>.StartsWith(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Memory.Span<Char>.SequenceEqual(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Strings

Repro

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: True, Escaped: AllEscaped)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Strings.WriteStringsUtf16(Formatted: False, SkipValidation: False, Escaped: AllEscaped)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Tests.Perf_String

Repro

System.Tests.Perf_String.ToLower(s: "test")

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_String.TrimStart_CharArr(s: " Test", c: [' ', ' '])

ETL Files

Histogram

JIT Disasms