[Perf] Windows/x64: 3 Improvements on 6/3/2026 1:30:53 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [ac695692911547e710e43fa7f6e38546a13504a5](https://github.com/dotnet/runtime/commit/ac695692911547e710e43fa7f6e38546a13504a5)
Compare | [f5f1079c96decf4c77b7fd84664d739218bda08c](https://github.com/dotnet/runtime/commit/f5f1079c96decf4c77b7fd84664d739218bda08c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac695692911547e710e43fa7f6e38546a13504a5...f5f1079c96decf4c77b7fd84664d739218bda08c)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Text.RegularExpressions.Tests.Perf_Regex_Common

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

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

| 260.18 μs | 230.51 μs | 0.89 | 0.01 | False | | |
|

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

| 244.87 μs | 218.23 μs | 0.89 | 0.01 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Common*'
```

### System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options: IgnoreCase, Compiled)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.RegularExpressions.Tests.Perf_Regex_Common.CtorInvoke(Options: Compiled)

#### 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 | Windows 10.0.22631
Queue | ViperWindows
Baseline | [ac695692911547e710e43fa7f6e38546a13504a5](https://github.com/dotnet/runtime/commit/ac695692911547e710e43fa7f6e38546a13504a5)
Compare | [f5f1079c96decf4c77b7fd84664d739218bda08c](https://github.com/dotnet/runtime/commit/f5f1079c96decf4c77b7fd84664d739218bda08c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac695692911547e710e43fa7f6e38546a13504a5...f5f1079c96decf4c77b7fd84664d739218bda08c)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Tests.Perf_String

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

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

| 346.52 ns | 297.38 ns | 0.86 | 0.17 | 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 'System.Tests.Perf_String*'
```

### System.Tests.Perf_String.Format_OneArg(s: "Testing {0}, {0:C}, {0:D5}, {0:E} - {0:F4}{0:G}{0:N} {0:X} !!", o: 8)

#### 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)