[Perf] Windows/x86: 2 Regressions on 8/3/2026 3:06:24 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [abcd6eb3137ac133ef7f73eae95e7928160386c9](https://github.com/dotnet/runtime/commit/abcd6eb3137ac133ef7f73eae95e7928160386c9)
Compare | [403a1942bec0062acab5e711fecd81f62351b211](https://github.com/dotnet/runtime/commit/403a1942bec0062acab5e711fecd81f62351b211)
Diff | [Diff](https://github.com/dotnet/runtime/compare/abcd6eb3137ac133ef7f73eae95e7928160386c9...403a1942bec0062acab5e711fecd81f62351b211)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Net.NetworkInformation.Tests.NetworkInterfaceTests

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

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

| 13.03 ms | 15.29 ms | 1.17 | 0.26 | False | | |
|

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

| 12.66 ms | 14.77 ms | 1.17 | 0.26 | 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Net.NetworkInformation.Tests.NetworkInterfaceTests*'
```

### System.Net.NetworkInformation.Tests.NetworkInterfaceTests.GetAllNetworkInterfacesProperties

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Net.NetworkInformation.Tests.NetworkInterfaceTests.GetAllNetworkInterfaces

#### 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 baseline and compare commits and run the provided benchmarks_ci.py command for System.Net.NetworkInformation.Tests.NetworkInterfaceTests. Read the benchmark source at performance/src/benchmarks/micro/libraries/System.Net.NetworkInformation/NetworkInterfaceTests.cs and inspect the linked reports for the Windows x86 regressions. Done means identifying and addressing the cause of the reported slowdown, then verifying the benchmark results.

Written by the indexing model from the issue text.