[Perf] Linux/x64: 3 Improvements on 3/25/2026 9:20:56 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [5caa14bd341f2639b586fca29874c6f92d9711cc](https://github.com/dotnet/runtime/commit/5caa14bd341f2639b586fca29874c6f92d9711cc)
Compare | [a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b](https://github.com/dotnet/runtime/commit/a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/5caa14bd341f2639b586fca29874c6f92d9711cc...a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Tests.Perf_Int32

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

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

| 59.89 ns | 49.73 ns | 0.83 | 0.32 | False | | |
|

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

| 44.04 ns | 37.72 ns | 0.86 | 0.25 | False | | |
|

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

| 63.93 ns | 53.08 ns | 0.83 | 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_Int32*'
```

### System.Tests.Perf_Int32.ToStringHex(value: 12345)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Int32.ToString(value: 12345)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Int32.ToStringHex(value: 2147483647)

#### 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)