[Perf] Linux/arm64: 5 Improvements on 7/7/2025 1:17:02 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [cc37cdd4134f8e41e6441d95055f3673e816cd9c](https://github.com/dotnet/runtime/commit/cc37cdd4134f8e41e6441d95055f3673e816cd9c)
Compare | [aa37dff42723ae9b37afaa74936dc38f43330937](https://github.com/dotnet/runtime/commit/aa37dff42723ae9b37afaa74936dc38f43330937)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cc37cdd4134f8e41e6441d95055f3673e816cd9c...aa37dff42723ae9b37afaa74936dc38f43330937)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Collections.IterateForEach&lt;Int32&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_arm64_ubuntu 22.04/System.Collections.IterateForEach(Int32).Stack(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L169-#L177>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.63 μs | 324.43 ns | 0.20 | 0.21 | False | | |
|<ul><li>[ConcurrentBag - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.IterateForEach(Int32).ConcurrentBag(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L260-#L268>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.94 μs | 1.14 μs | 0.59 | 0.01 | False | | |
|<ul><li>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.IterateForEach(Int32).Queue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L156-#L164>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.82 μs | 604.35 ns | 0.33 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%28Int32%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%28Int32%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%28Int32%29_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%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.Collections.IterateForEach&lt;Int32&gt;*'
```

<details>

### System.Collections.IterateForEach&lt;Int32&gt;.Stack(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.IterateForEach&lt;Int32&gt;.ConcurrentBag(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.IterateForEach&lt;Int32&gt;.Queue(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 22.04
Queue | AmpereUbuntu
Baseline | [cc37cdd4134f8e41e6441d95055f3673e816cd9c](https://github.com/dotnet/runtime/commit/cc37cdd4134f8e41e6441d95055f3673e816cd9c)
Compare | [aa37dff42723ae9b37afaa74936dc38f43330937](https://github.com/dotnet/runtime/commit/aa37dff42723ae9b37afaa74936dc38f43330937)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cc37cdd4134f8e41e6441d95055f3673e816cd9c...aa37dff42723ae9b37afaa74936dc38f43330937)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Collections.IterateForEach&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_arm64_ubuntu 22.04/System.Collections.IterateForEach(String).Stack(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L169-#L177>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.81 μs | 1.14 μs | 0.63 | 0.08 | False | | |
|<ul><li>[Queue - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.IterateForEach(String).Queue(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L156-#L164>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.13 μs | 1.31 μs | 0.61 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%28String%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/System.Collections.IterateForEach%28String%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/07_10_2025/refs/heads/main_arm64_ubuntu%2022.04_Improvement/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>

### System.Collections.IterateForEach&lt;String&gt;.Stack(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.IterateForEach&lt;String&gt;.Queue(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	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	cc37cdd4134f8e41e6441d95055f3673e816cd9c
Compare	aa37dff42723ae9b37afaa74936dc38f43330937
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Stack - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.63 μs	324.43 ns	0.20	0.21	False
ConcurrentBag - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.94 μs	1.14 μs	0.59	0.01	False
Queue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.82 μs	604.35 ns	0.33	0.15	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	1.81 μs	1.14 μs	0.63	0.08	False
Queue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.13 μs	1.31 μs	0.61	0.04	False

[Perf] Linux/arm64: 5 Improvements on 7/7/2025 1:17:02 PM +00:00 #59089

Description

Run Information

Improvements in System.Collections.IterateForEach<Int32>

Repro

System.Collections.IterateForEach<Int32>.Stack(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.IterateForEach<Int32>.ConcurrentBag(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.IterateForEach<Int32>.Queue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.Collections.IterateForEach<String>

Repro

System.Collections.IterateForEach<String>.Stack(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.IterateForEach<String>.Queue(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

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