[Perf] Linux/x64: 3 Improvements on 3/3/2026 5:59:55 PM -08:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [0f01e117143befce315101373fe7cfeaf2c9b961](https://github.com/dotnet/runtime/commit/0f01e117143befce315101373fe7cfeaf2c9b961)
Compare | [4172d0e29aae797fd06c6e26e0682a28f8204122](https://github.com/dotnet/runtime/commit/4172d0e29aae797fd06c6e26e0682a28f8204122)
Diff | [Diff](https://github.com/dotnet/runtime/compare/0f01e117143befce315101373fe7cfeaf2c9b961...4172d0e29aae797fd06c6e26e0682a28f8204122)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.Text.Json.Serialization.Tests.WriteJson<ClassRecord>

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

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

| 5.58 μs | 3.52 μs | 0.63 | 0.05 | False | | |
|

• [SerializeToUtf8Bytes - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 4.76 μs | 3.07 μs | 0.64 | 0.04 | False | | |
|

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

| 10.85 μs | 7.06 μs | 0.65 | 0.03 | 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.Serialization.Tests.WriteJson*'
```

### System.Text.Json.Serialization.Tests.WriteJson<ClassRecord>.SerializeToString(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson<ClassRecord>.SerializeToUtf8Bytes(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson<ClassRecord>.SerializeObjectProperty(Mode: Reflection)

#### 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)