[Perf] Linux/x64: 1 Regression on 1/22/2026 11:18:09 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [537175220f65f0b65f41cdf4cfc888bd1c83dfb3](https://github.com/dotnet/sdk/commit/537175220f65f0b65f41cdf4cfc888bd1c83dfb3)
Compare | [1b6b76add691c745ee07cf73c26cc4035b3350bd](https://github.com/dotnet/sdk/commit/1b6b76add691c745ee07cf73c26cc4035b3350bd)
Diff | [Diff](https://github.com/dotnet/sdk/compare/537175220f65f0b65f41cdf4cfc888bd1c83dfb3...1b6b76add691c745ee07cf73c26cc4035b3350bd)
Configs | CompilationMode:tiered, RunKind:akadeindexedset

### Regressions in Akade.IndexedSet.Benchmarks.ConcurrentSetBenchmarks

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

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

| 43.52 ns | 48.74 ns | 1.12 | 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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Akade.IndexedSet.Benchmarks.ConcurrentSetBenchmarks*'
```

### Akade.IndexedSet.Benchmarks.ConcurrentSetBenchmarks.ConcurrentLessThanLookup

#### 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)