[Perf] Linux/x64: 5 Improvements on 2/26/2026 12:41:38 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [726b3dffc2efd466b6cb8526d4a1c96cc0d6a852](https://github.com/dotnet/runtime/commit/726b3dffc2efd466b6cb8526d4a1c96cc0d6a852)
Compare | [3176283d96819946eff7a6ddc65e88b52d4257e7](https://github.com/dotnet/runtime/commit/3176283d96819946eff7a6ddc65e88b52d4257e7)
Diff | [Diff](https://github.com/dotnet/runtime/compare/726b3dffc2efd466b6cb8526d4a1c96cc0d6a852...3176283d96819946eff7a6ddc65e88b52d4257e7)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Text.Json.Document.Tests.Perf_EnumerateObject

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

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

| 6.71 μs | 4.43 μs | 0.66 | 0.09 | False | | |
|

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

| 6.10 μs | 4.16 μs | 0.68 | 0.07 | False | | |
|

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

| 6.10 μs | 4.12 μs | 0.67 | 0.10 | False | | |

![graph]()
![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.Text.Json.Document.Tests.Perf_EnumerateObject*'
```

### System.Text.Json.Document.Tests.Perf_EnumerateObject.EnumerateProperties(TestCase: ObjectProperties)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_EnumerateObject.EnumerateProperties(TestCase: StringProperties)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Document.Tests.Perf_EnumerateObject.EnumerateProperties(TestCase: NumericProperties)

#### 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 | [726b3dffc2efd466b6cb8526d4a1c96cc0d6a852](https://github.com/dotnet/runtime/commit/726b3dffc2efd466b6cb8526d4a1c96cc0d6a852)
Compare | [3176283d96819946eff7a6ddc65e88b52d4257e7](https://github.com/dotnet/runtime/commit/3176283d96819946eff7a6ddc65e88b52d4257e7)
Diff | [Diff](https://github.com/dotnet/runtime/compare/726b3dffc2efd466b6cb8526d4a1c96cc0d6a852...3176283d96819946eff7a6ddc65e88b52d4257e7)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro

### Improvements in System.Globalization.Tests.StringSearch

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

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

| 8.11 μs | 6.70 μs | 0.83 | 0.16 | False | | |
|

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

| 984.72 ns | 883.97 ns | 0.90 | 0.03 | 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.Globalization.Tests.StringSearch*'
```

### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, IgnoreSymbols, False))

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

#### 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)