[Perf] Linux/arm64: 4 Improvements on 2/5/2026 3:11:56 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [0bbe2a937db7b916ca94849de3a3d16f23f8b17f](https://github.com/dotnet/runtime/commit/0bbe2a937db7b916ca94849de3a3d16f23f8b17f)
Compare | [9995ebd5978c930bc42338be2647885da33e47e1](https://github.com/dotnet/runtime/commit/9995ebd5978c930bc42338be2647885da33e47e1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0bbe2a937db7b916ca94849de3a3d16f23f8b17f...9995ebd5978c930bc42338be2647885da33e47e1)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.ConsoleTests.Perf_Console

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [OpenStandardError - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 803.59 ns | 106.69 ns | 0.13 | 0.53 | False | | |
|

• [OpenStandardInput - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 802.67 ns | 101.41 ns | 0.13 | 0.53 | False | | |
|

• [OpenStandardOutput - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 878.57 ns | 104.27 ns | 0.12 | 0.51 | False | | |

![graph]()
![graph]()
![graph]()
[Test Report]()

### 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.ConsoleTests.Perf_Console*'
```

### System.ConsoleTests.Perf_Console.OpenStandardError

#### ETL Files

#### Histogram

#### JIT Disasms

### System.ConsoleTests.Perf_Console.OpenStandardInput

#### ETL Files

#### Histogram

#### JIT Disasms

### System.ConsoleTests.Perf_Console.OpenStandardOutput

#### 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)

---

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [0bbe2a937db7b916ca94849de3a3d16f23f8b17f](https://github.com/dotnet/runtime/commit/0bbe2a937db7b916ca94849de3a3d16f23f8b17f)
Compare | [9995ebd5978c930bc42338be2647885da33e47e1](https://github.com/dotnet/runtime/commit/9995ebd5978c930bc42338be2647885da33e47e1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0bbe2a937db7b916ca94849de3a3d16f23f8b17f...9995ebd5978c930bc42338be2647885da33e47e1)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Numerics.Tests.Perf_Matrix4x4

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [GetDeterminantBenchmark - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 10.61 ns | 8.28 ns | 0.78 | 0.21 | False | | |

![graph]()
[Test Report]()

### 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_Matrix4x4*'
```

### System.Numerics.Tests.Perf_Matrix4x4.GetDeterminantBenchmark

#### 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)