[Perf] Windows/x64: 2 Regressions on 6/23/2026 11:21:04 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [ae899ea0758628a22feb37a1401ae397cc5fc8d1](https://github.com/dotnet/sdk/commit/ae899ea0758628a22feb37a1401ae397cc5fc8d1)
Compare | [4f6d02131fae05b5de421f33e38dc73906ef5aca](https://github.com/dotnet/sdk/commit/4f6d02131fae05b5de421f33e38dc73906ef5aca)
Diff | [Diff](https://github.com/dotnet/sdk/compare/ae899ea0758628a22feb37a1401ae397cc5fc8d1...4f6d02131fae05b5de421f33e38dc73906ef5aca)
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
-- | -- | -- | -- | -- | -- | -- | -- | --
|

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

| 2.62 μs | 2.89 μs | 1.10 | 0.00 | True | | |

![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.Range_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)

---

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [ae899ea0758628a22feb37a1401ae397cc5fc8d1](https://github.com/dotnet/sdk/commit/ae899ea0758628a22feb37a1401ae397cc5fc8d1)
Compare | [4f6d02131fae05b5de421f33e38dc73906ef5aca](https://github.com/dotnet/sdk/commit/4f6d02131fae05b5de421f33e38dc73906ef5aca)
Diff | [Diff](https://github.com/dotnet/sdk/compare/ae899ea0758628a22feb37a1401ae397cc5fc8d1...4f6d02131fae05b5de421f33e38dc73906ef5aca)
Configs | CompilationMode:tiered, RunKind:akadeindexedset

### Regressions in Akade.IndexedSet.Benchmarks.UniqueIndexBenchmarks

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

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

| 921.53 ns | 1232.56 ns | 1.34 | 0.00 | True | | |

![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.UniqueIndexBenchmarks*'
```

### Akade.IndexedSet.Benchmarks.UniqueIndexBenchmarks.Unique_IndexedSet_Single

#### 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 and UniqueLookupBenchmarks.cs, then run the provided benchmarks_ci.py commands on Windows/x64. Compare the reported results with the linked baseline and test commits, investigate the two regressions, and verify that the cause and resolution are supported by rerunning the affected benchmarks.

Written by the indexing model from the issue text.