[Perf] Windows/x64: 2 Regressions on 7/9/2026 12:20:20 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [02385e26e452b21a97d8a5e694fe3ada7259a582](https://github.com/dotnet/sdk/commit/02385e26e452b21a97d8a5e694fe3ada7259a582)
Compare | [c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3](https://github.com/dotnet/sdk/commit/c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3)
Diff | [Diff](https://github.com/dotnet/sdk/compare/02385e26e452b21a97d8a5e694fe3ada7259a582...c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3)
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]()

| 2.63 μs | 2.92 μs | 1.11 | 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 | [02385e26e452b21a97d8a5e694fe3ada7259a582](https://github.com/dotnet/sdk/commit/02385e26e452b21a97d8a5e694fe3ada7259a582)
Compare | [c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3](https://github.com/dotnet/sdk/commit/c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3)
Diff | [Diff](https://github.com/dotnet/sdk/compare/02385e26e452b21a97d8a5e694fe3ada7259a582...c7028b23fb9d8e1f786cc404c6107c53a0d3a2a3)
Configs | CompilationMode:tiered, RunKind:akadeindexedset

### Regressions in Akade.IndexedSet.Benchmarks.FullTextIndexBenchmarks

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

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

| 144.98 μs | 161.02 μs | 1.11 | 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.FullTextIndexBenchmarks*'
```

### Akade.IndexedSet.Benchmarks.FullTextIndexBenchmarks.FuzzyContains_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 by running the two benchmark commands from the issue on Windows x64, then inspect RangeIndexBenchmarks.cs and FullTextIndexBenchmarks.cs at the linked source ranges. Compare the results with the baseline and compare commits, and use the profiling and benchmarking workflow docs for investigation. Done means the regression is explained or corrected and the affected benchmarks no longer show the reported slowdown.

Written by the indexing model from the issue text.