[Perf] Linux/x64: 3 Improvements on 8/3/2026 11:34:31 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [1110e1e923579c970199ab8a5a3482d48987d925](https://github.com/dotnet/runtime/commit/1110e1e923579c970199ab8a5a3482d48987d925)
Compare | [efb85c9570c78809ef53978a7efc820614e26a73](https://github.com/dotnet/runtime/commit/efb85c9570c78809ef53978a7efc820614e26a73)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1110e1e923579c970199ab8a5a3482d48987d925...efb85c9570c78809ef53978a7efc820614e26a73)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.Threading.Tests.Perf_Interlocked

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

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

| 51.13 ns | 45.22 ns | 0.88 | 0.23 | False | | |
|

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

| 50.59 ns | 46.24 ns | 0.91 | 0.25 | False | | |

![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.Threading.Tests.Perf_Interlocked*'
```

### System.Threading.Tests.Perf_Interlocked.Increment_long

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Threading.Tests.Perf_Interlocked.Decrement_long

#### 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 | [1110e1e923579c970199ab8a5a3482d48987d925](https://github.com/dotnet/runtime/commit/1110e1e923579c970199ab8a5a3482d48987d925)
Compare | [efb85c9570c78809ef53978a7efc820614e26a73](https://github.com/dotnet/runtime/commit/efb85c9570c78809ef53978a7efc820614e26a73)
Diff | [Diff](https://github.com/dotnet/runtime/compare/1110e1e923579c970199ab8a5a3482d48987d925...efb85c9570c78809ef53978a7efc820614e26a73)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.Tests.Perf_Enum

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

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

| 42.63 ns | 36.04 ns | 0.85 | 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Enum*'
```

### System.Tests.Perf_Enum.Compare

#### 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 src/benchmarks/micro/libraries/System.Threading/Perf.Interlocked.cs and src/benchmarks/micro/libraries/System.Runtime/Perf.Enum.cs, then run the supplied benchmarks_ci.py commands for the two filters. Compare the reported results with the linked baseline and test reports; the issue does not define a code change or acceptance condition, so triage must first establish what outcome is expected.

Written by the indexing model from the issue text.