[Perf] Linux/x64: 1 Regression on 7/31/2026 9:36:59 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d](https://github.com/dotnet/sdk/commit/8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d)
Compare | [bfb5366c2c6e45c00cd194bc21c623d32fcd4066](https://github.com/dotnet/sdk/commit/bfb5366c2c6e45c00cd194bc21c623d32fcd4066)
Diff | [Diff](https://github.com/dotnet/sdk/compare/8c1bd18b8c65722ac42857e5bb2fe68d67f9f63d...bfb5366c2c6e45c00cd194bc21c623d32fcd4066)
Configs | CompilationMode:tiered, RunKind:akadeindexedset

### Regressions in Akade.IndexedSet.Benchmarks.RangeIndexBenchmarks

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

• [Paging_IndexedSet - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config 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 'Akade.IndexedSet.Benchmarks.RangeIndexBenchmarks*'
```

### Akade.IndexedSet.Benchmarks.RangeIndexBenchmarks.Paging_IndexedSet

#### 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 src/benchmarks/real-world/Akade.IndexedSet.Benchmarks/RangeIndexBenchmarks.cs, especially Paging_IndexedSet, and run the supplied benchmarks_ci.py command. Compare the baseline and test commits with the linked benchmark report to identify the cause of the 15% regression; done means the regression is explained and the benchmark result is validated.

Written by the indexing model from the issue text.