[Perf] Linux/x64: 2 Improvements on 7/30/2026 2:24:29 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [d1d60b31914b2a81a755890fad31cb44ca5cf5cd](https://github.com/dotnet/runtime/commit/d1d60b31914b2a81a755890fad31cb44ca5cf5cd)
Compare | [974b4b56b05ffe12857f731320f4b235bf36169c](https://github.com/dotnet/runtime/commit/974b4b56b05ffe12857f731320f4b235bf36169c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d1d60b31914b2a81a755890fad31cb44ca5cf5cd...974b4b56b05ffe12857f731320f4b235bf36169c)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

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

| 54.00 ns | 48.54 ns | 0.90 | 0.02 | False | | |
|

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

| 45.48 ns | 40.93 ns | 0.90 | 0.08 | 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.Tests.Perf_Uri*'
```

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

#### 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)

Start with the linked benchmark source, src/benchmarks/micro/libraries/System.Runtime/Perf.Uri.cs lines 58-60, and run the documented benchmarks_ci.py command for System.Tests.Perf_Uri. Compare the baseline and test reports for the two Ctor cases. The issue does not define a code change or acceptance criteria, so confirm the intended follow-up before proceeding.

Written by the indexing model from the issue text.