[Perf] Linux/x64: 2 Improvements on 4/11/2026 8:23:20 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a931a075399d742844efd7c4879032861e444152](https://github.com/dotnet/runtime/commit/a931a075399d742844efd7c4879032861e444152)
Compare | [4fd3283754e18266bcfde2f3279656d655018a81](https://github.com/dotnet/runtime/commit/4fd3283754e18266bcfde2f3279656d655018a81)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a931a075399d742844efd7c4879032861e444152...4fd3283754e18266bcfde2f3279656d655018a81)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in PerfLabTests.LowLevelPerf

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

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

| 162.69 μs | 135.61 μs | 0.83 | 0.18 | False | | |

[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 'PerfLabTests.LowLevelPerf*'
```

### PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod

#### 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 | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a931a075399d742844efd7c4879032861e444152](https://github.com/dotnet/runtime/commit/a931a075399d742844efd7c4879032861e444152)
Compare | [4fd3283754e18266bcfde2f3279656d655018a81](https://github.com/dotnet/runtime/commit/4fd3283754e18266bcfde2f3279656d655018a81)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a931a075399d742844efd7c4879032861e444152...4fd3283754e18266bcfde2f3279656d655018a81)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Microsoft.Extensions.Primitives.StringSegmentBenchmark

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

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

| 10.02 ns | 7.62 ns | 0.76 | 0.08 | False | | |

[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 'Microsoft.Extensions.Primitives.StringSegmentBenchmark*'
```

### Microsoft.Extensions.Primitives.StringSegmentBenchmark.Trim

#### 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)