[Perf] Linux/x64: 2 Regressions on 6/24/2026 2:33:49 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [f4430a4ba762ef82841ff7a8c340ed8854b2bca9](https://github.com/dotnet/runtime/commit/f4430a4ba762ef82841ff7a8c340ed8854b2bca9)
Compare | [46b72c7c81592b429e062bacebe8d39f17362333](https://github.com/dotnet/runtime/commit/46b72c7c81592b429e062bacebe8d39f17362333)
Diff | [Diff](https://github.com/dotnet/runtime/compare/f4430a4ba762ef82841ff7a8c340ed8854b2bca9...46b72c7c81592b429e062bacebe8d39f17362333)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in System.Runtime.Intrinsics.Tests.Perf_Vector128Of<SByte>

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

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

| 6.26 μs | 7.16 μs | 1.14 | 0.23 | False | | |
|

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

| 6.18 μs | 6.69 μs | 1.08 | 0.22 | 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.Runtime.Intrinsics.Tests.Perf_Vector128Of*'
```

### System.Runtime.Intrinsics.Tests.Perf_Vector128Of<SByte>.GreaterThanOrEqualAllBenchmark

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Runtime.Intrinsics.Tests.Perf_Vector128Of<SByte>.LessThanOrEqualAnyBenchmark

#### 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 benchmark source in src/benchmarks/micro/libraries/System.Runtime.Intrinsics/Perf_Vector128OfT.cs at lines 121-122 and 142-143, then run the provided benchmarks_ci.py command using the System.Runtime.Intrinsics.Tests.Perf_Vector128Of filter. Compare the reported timings with the linked baseline and inspect the supplied test report and profiling workflow documentation; done means identifying and addressing the two reported regressions.

Written by the indexing model from the issue text.