[Perf] Linux/arm64: 6 Improvements on 2/17/2026 6:59:09 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [a92d749b959d22aec0581508303125ae915bba60](https://github.com/dotnet/runtime/commit/a92d749b959d22aec0581508303125ae915bba60)
Compare | [5c12c98387d57472416198a40909ac732816ad87](https://github.com/dotnet/runtime/commit/5c12c98387d57472416198a40909ac732816ad87)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a92d749b959d22aec0581508303125ae915bba60...5c12c98387d57472416198a40909ac732816ad87)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Tests.Perf_Uri

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

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

| 420.81 ns | 389.33 ns | 0.93 | 0.01 | False | | |
|

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

| 171.84 ns | 130.66 ns | 0.76 | 0.01 | False | | |
|

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

| 163.81 ns | 108.02 ns | 0.66 | 0.02 | False | | |
|

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

| 431.40 ns | 382.91 ns | 0.89 | 0.01 | False | | |
|

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

| 103.13 ns | 87.38 ns | 0.85 | 0.10 | False | | |
|

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

| 100.75 ns | 88.66 ns | 0.88 | 0.16 | False | | |

![graph]()
![graph]()
![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.Tests.Perf_Uri*'
```

### System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input: "https://a.much.longer.domain.name/path/with?key=value#fragment")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Uri.Ctor(input: "https://a.much.longer.domain.name")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Uri.Ctor(input: "http://xn--hst-sna.with.xn--nicode-2ya")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Uri.CtorIdnHostPathAndQuery(input: "http://xn--hst-sna.with.xn--nicode-2ya/path/with?key=value#fragment")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Uri.Ctor(input: "https://contoso.com")

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Tests.Perf_Uri.Ctor(input: "https://CONTOSO.com")

#### 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)