[Perf] Windows/x64: 2 Regressions on 3/11/2026 9:18:33 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [d50a67b11dcfbd8b19c90d1d3eab507e0a6c3440](https://github.com/dotnet/sdk/commit/d50a67b11dcfbd8b19c90d1d3eab507e0a6c3440)
Compare | [798687480ca3d836b6af7bfbd9d492f756f3247f](https://github.com/dotnet/sdk/commit/798687480ca3d836b6af7bfbd9d492f756f3247f)
Diff | [Diff](https://github.com/dotnet/sdk/compare/d50a67b11dcfbd8b19c90d1d3eab507e0a6c3440...798687480ca3d836b6af7bfbd9d492f756f3247f)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

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

| 10.55 ns | 11.74 ns | 1.11 | 0.00 | True | | |
|

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

| 135.86 ns | 149.70 ns | 1.10 | 0.00 | True | | |

![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 'Akade.IndexedSet.Benchmarks.RangeIndexBenchmarks*'
```

### Akade.IndexedSet.Benchmarks.RangeIndexBenchmarks.Min_IndexedSet

#### ETL Files

#### Histogram

#### JIT Disasms

### 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 RangeIndexBenchmarks.cs at the linked benchmark locations and compare the Baseline commit d50a67b with Compare commit 7986874. Run the provided benchmarks_ci.py command for RangeIndexBenchmarks and review the linked report and graphs for Min_IndexedSet and Paging_IndexedSet. Done means determining the cause of both Windows/x64 regressions and verifying that the benchmark no longer regresses.

Written by the indexing model from the issue text.