[Perf] Linux/x64: 8 Improvements on 4/30/2025 2:49:21 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f7af766fdd6c56921164f656592f32a2074428be](https://github.com/dotnet/runtime/commit/f7af766fdd6c56921164f656592f32a2074428be)
Compare | [dbb3f759798208ca7463059e0c87c0f45704b62f](https://github.com/dotnet/runtime/commit/dbb3f759798208ca7463059e0c87c0f45704b62f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f7af766fdd6c56921164f656592f32a2074428be...dbb3f759798208ca7463059e0c87c0f45704b62f)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in PerfLabTests.BlockCopyPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[CallBlockCopy - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/BlockCopyPerf.cs#L21-#L23>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.20 ns | 4.91 ns | 0.48 | 0.17 | False | | |
|<ul><li>[CallBlockCopy - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements%3a%2010).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/BlockCopyPerf.cs#L21-#L23>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1STW/bMAy9B8h/YHORg7qx+5Em8CBgaxZsQFdgaIPurNp0rE2WDIlaE6z775VsZ4ddSOiJfHp8lEICQkfA4SP7jrb+Jl524ewWd8qUvzamO0Z0sRFK/UMS7dutwhY1uQIu8zn7MJ2owCRqQhuoKkFIssXkKr9aXuTXF/ntLl8Xy1VxfbNYr1c3l6vleZ4XeT4fOy12JjSyypBGyqzXsf/E+2KFLpt4b7F2WYOiclkrpD4VlEbXch9fPmrRyjL5wzam7aQSJI1+MBWyAhhJtFixFNij1/dSVxEM1dawv1HIF6Sv0pGxshTqsyDxQ1ITeYSVzmiXRKd4DOkwKu9j2qvnMaSjVD6kdBTGhzSfTt6gs+YnlgRPaCW6FO68VNUuDPtEou1SeBbKI4872JjgAtpHdF7Rp99oxR6nkyx7g9cmDDIywFkgp+CFg9mMzPZQKl/hbAZZBttDoFQIpoZaqsAl9R6MD4sC1zdHQRZ1FbYW/S4bYQlew9SQDAX8JPNQGuVbzf+Xexxwx3vdoY4kKeQs2IfB6eN4fEDhvO2/DJu/A7Nz/bR1AgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 9.03 ns | 4.05 ns | 0.45 | 0.11 | False | | |
|<ul><li>[CallBlockCopy - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/BlockCopyPerf.cs#L21-#L23>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 21.78 ns | 18.69 ns | 0.86 | 0.16 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/PerfLabTests.BlockCopyPerf_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/PerfLabTests.BlockCopyPerf_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/PerfLabTests.BlockCopyPerf_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/PerfLabTests.BlockCopyPerf.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 'PerfLabTests.BlockCopyPerf*'
```

<details>

### PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 100)

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 10)

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f7af766fdd6c56921164f656592f32a2074428be](https://github.com/dotnet/runtime/commit/f7af766fdd6c56921164f656592f32a2074428be)
Compare | [dbb3f759798208ca7463059e0c87c0f45704b62f](https://github.com/dotnet/runtime/commit/dbb3f759798208ca7463059e0c87c0f45704b62f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f7af766fdd6c56921164f656592f32a2074428be...dbb3f759798208ca7463059e0c87c0f45704b62f)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.IO.Tests.Perf_StreamWriter

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Tests.Perf_StreamWriter.WriteString(writeLength%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.StreamWriter.cs#L96-#L117>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 324.24 ms | 215.48 ms | 0.66 | 0.15 | False | | |
|<ul><li>[WritePartialCharArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.StreamWriter.cs#L72-#L94>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 336.45 ms | 206.17 ms | 0.61 | 0.07 | False | | |
|<ul><li>[WriteCharArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/System.IO.Tests.Perf_StreamWriter.WriteCharArray(writeLength%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.StreamWriter.cs#L49-#L70>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 325.57 ms | 200.77 ms | 0.62 | 0.26 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/System.IO.Tests.Perf_StreamWriter_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/System.IO.Tests.Perf_StreamWriter_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/System.IO.Tests.Perf_StreamWriter_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/System.IO.Tests.Perf_StreamWriter.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.IO.Tests.Perf_StreamWriter*'
```

<details>

### System.IO.Tests.Perf_StreamWriter.WriteString(writeLength: 100)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength: 100)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.IO.Tests.Perf_StreamWriter.WriteCharArray(writeLength: 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 | ViperUbuntu
Baseline | [f7af766fdd6c56921164f656592f32a2074428be](https://github.com/dotnet/runtime/commit/f7af766fdd6c56921164f656592f32a2074428be)
Compare | [dbb3f759798208ca7463059e0c87c0f45704b62f](https://github.com/dotnet/runtime/commit/dbb3f759798208ca7463059e0c87c0f45704b62f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f7af766fdd6c56921164f656592f32a2074428be...dbb3f759798208ca7463059e0c87c0f45704b62f)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in MicroBenchmarks.Serializers.Json_ToStream&lt;Location&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[JsonNet_ - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/MicroBenchmarks.Serializers.Json_ToStream(Location).JsonNet_.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/Serializers/Json_ToStream.cs#L51-#L57>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 691.19 ns | 606.77 ns | 0.88 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/MicroBenchmarks.Serializers.Json_ToStream%28Location%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/MicroBenchmarks.Serializers.Json_ToStream%28Location%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 'MicroBenchmarks.Serializers.Json_ToStream&lt;Location&gt;*'
```

<details>

### MicroBenchmarks.Serializers.Json_ToStream&lt;Location&gt;.JsonNet_

#### 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 | ViperUbuntu
Baseline | [f7af766fdd6c56921164f656592f32a2074428be](https://github.com/dotnet/runtime/commit/f7af766fdd6c56921164f656592f32a2074428be)
Compare | [dbb3f759798208ca7463059e0c87c0f45704b62f](https://github.com/dotnet/runtime/commit/dbb3f759798208ca7463059e0c87c0f45704b62f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f7af766fdd6c56921164f656592f32a2074428be...dbb3f759798208ca7463059e0c87c0f45704b62f)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in MicroBenchmarks.Serializers.Json_ToStream&lt;LoginViewModel&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[JsonNet_ - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/ViperUbuntu/MicroBenchmarks.Serializers.Json_ToStream(LoginViewModel).JsonNet_.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/Serializers/Json_ToStream.cs#L51-#L57>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 297.05 ns | 269.01 ns | 0.91 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/MicroBenchmarks.Serializers.Json_ToStream%28LoginViewModel%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_ubuntu%2022.04/ViperUbuntu_Improvement/MicroBenchmarks.Serializers.Json_ToStream%28LoginViewModel%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 'MicroBenchmarks.Serializers.Json_ToStream&lt;LoginViewModel&gt;*'
```

<details>

### MicroBenchmarks.Serializers.Json_ToStream&lt;LoginViewModel&gt;.JsonNet_

#### 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	ViperUbuntu
Baseline	f7af766fdd6c56921164f656592f32a2074428be
Compare	dbb3f759798208ca7463059e0c87c0f45704b62f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
CallBlockCopy - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.20 ns	4.91 ns	0.48	0.17	False
CallBlockCopy - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.03 ns	4.05 ns	0.45	0.11	False
CallBlockCopy - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	21.78 ns	18.69 ns	0.86	0.16	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
WriteString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	324.24 ms	215.48 ms	0.66	0.15	False
WritePartialCharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	336.45 ms	206.17 ms	0.61	0.07	False
WriteCharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	325.57 ms	200.77 ms	0.62	0.26	False

Uh oh!

[Perf] Linux/x64: 8 Improvements on 4/30/2025 2:49:21 PM +00:00 #55048

Description

Run Information

Improvements in PerfLabTests.BlockCopyPerf

Repro

PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 100)

ETL Files

Histogram

JIT Disasms

PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 10)

ETL Files

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JIT Disasms

PerfLabTests.BlockCopyPerf.CallBlockCopy(numElements: 1000)

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Improvements in System.IO.Tests.Perf_StreamWriter

Repro

System.IO.Tests.Perf_StreamWriter.WriteString(writeLength: 100)

ETL Files

Histogram

JIT Disasms

System.IO.Tests.Perf_StreamWriter.WritePartialCharArray(writeLength: 100)

ETL Files

Histogram

JIT Disasms

System.IO.Tests.Perf_StreamWriter.WriteCharArray(writeLength: 100)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in MicroBenchmarks.Serializers.Json_ToStream<Location>

Repro

MicroBenchmarks.Serializers.Json_ToStream<Location>.JsonNet_

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in MicroBenchmarks.Serializers.Json_ToStream<LoginViewModel>

Repro

MicroBenchmarks.Serializers.Json_ToStream<LoginViewModel>.JsonNet_

ETL Files

Histogram

JIT Disasms

Docs

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