[Perf] Linux/arm64: 2 Improvements on 6/23/2026 3:44:23 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [461fd2adbf736b4298d9a0c58ad8dbcecaf83629](https://github.com/dotnet/runtime/commit/461fd2adbf736b4298d9a0c58ad8dbcecaf83629)
Compare | [0d1a20fb14109f277df06ebee3f83c964f9dcc61](https://github.com/dotnet/runtime/commit/0d1a20fb14109f277df06ebee3f83c964f9dcc61)
Diff | [Diff](https://github.com/dotnet/runtime/compare/461fd2adbf736b4298d9a0c58ad8dbcecaf83629...0d1a20fb14109f277df06ebee3f83c964f9dcc61)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in JetStream.TimeSeriesSegmentation

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

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

| 94.29 ms | 83.26 ms | 0.88 | 0.26 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'JetStream.TimeSeriesSegmentation*'
```

### JetStream.TimeSeriesSegmentation.MaximizeSchwarzCriterion

#### 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 | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [461fd2adbf736b4298d9a0c58ad8dbcecaf83629](https://github.com/dotnet/runtime/commit/461fd2adbf736b4298d9a0c58ad8dbcecaf83629)
Compare | [0d1a20fb14109f277df06ebee3f83c964f9dcc61](https://github.com/dotnet/runtime/commit/0d1a20fb14109f277df06ebee3f83c964f9dcc61)
Diff | [Diff](https://github.com/dotnet/runtime/compare/461fd2adbf736b4298d9a0c58ad8dbcecaf83629...0d1a20fb14109f277df06ebee3f83c964f9dcc61)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Benchstone.BenchI.EightQueens

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

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

| 2.22 μs | 2.05 μs | 0.93 | 0.40 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchI.EightQueens*'
```

### Benchstone.BenchI.EightQueens.Test

#### 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)

Start with the benchmark sources src/benchmarks/micro/runtime/JetStream/Segmentation/segmentation.cs and src/benchmarks/micro/runtime/Benchstones/BenchI/8Queens.cs, then run the listed benchmarks with scripts/benchmarks_ci.py. Compare the supplied baseline and test reports; the issue does not define a code change or a clearer completion condition beyond investigating the reported improvements.

Written by the indexing model from the issue text.