[Perf] Linux/x64: 5 Improvements on 3/3/2026 2:45:42 AM +00:00

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#69,990 opened on Mar 11, 2026 0 comments 0 reactions 0 assignees View on GitHub

arch-wasm arch-x64 branch-refs/heads/main kind-micro os-linux perf-improvement untriaged

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Forks: 8
PR merge metrics: PR metrics pending

Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [64d10ef18938ee47fc97a06a649a9844de49a365](https://github.com/dotnet/runtime/commit/64d10ef18938ee47fc97a06a649a9844de49a365)
Compare | [df1ab13677bb2a84da713ee06b223a2167b802d4](https://github.com/dotnet/runtime/commit/df1ab13677bb2a84da713ee06b223a2167b802d4)
Diff | [Diff](https://github.com/dotnet/runtime/compare/64d10ef18938ee47fc97a06a649a9844de49a365...df1ab13677bb2a84da713ee06b223a2167b802d4)
Configs | CompilationMode:wasm, RunKind:micro

### Improvements in System.Xml.Linq.Perf_XName

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

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

| 542.01 ns | 329.43 ns | 0.61 | 0.16 | False | | |
|

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

| 1.15 μs | 707.31 ns | 0.62 | 0.12 | False | | |
|

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

| 295.35 ns | 217.28 ns | 0.74 | 0.15 | False | | |
|

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

| 48.02 ns | 21.76 ns | 0.45 | 0.14 | False | | |

![graph]()
![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.Xml.Linq.Perf_XName*'
```

### System.Xml.Linq.Perf_XName.CreateElement

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Xml.Linq.Perf_XName.CreateElementWithNamespaceImplicitOperator

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Xml.Linq.Perf_XName.NonEmptyNameSpaceToString

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Xml.Linq.Perf_XName.EmptyNameSpaceToString

#### 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

### Improvements in System.Buffers.Text.Tests.Base64Tests

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

[Base64IsValid - Duration of single invocation]()
[ADX - Test Multi Config Graph]()

| 542.59 ns | 489.33 ns | 0.90 | 0.03 | 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.Buffers.Text.Tests.Base64Tests*'
```

### System.Buffers.Text.Tests.Base64Tests.Base64IsValid(NumberOfBytes: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

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[Perf] Linux/x64: 5 Improvements on 3/3/2026 2:45:42 AM +00:00

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