[Perf] Linux/x64: 2 Regressions on 1/22/2026 5:44:58 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [20078050f3314428d8ed376dc0085b35856b105a](https://github.com/dotnet/runtime/commit/20078050f3314428d8ed376dc0085b35856b105a)
Compare | [6489d3644fdda304c253ef0f943a58aa91393d66](https://github.com/dotnet/runtime/commit/6489d3644fdda304c253ef0f943a58aa91393d66)
Diff | [Diff](https://github.com/dotnet/runtime/compare/20078050f3314428d8ed376dc0085b35856b105a...6489d3644fdda304c253ef0f943a58aa91393d66)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in System.Collections.TryGetValueTrue<String, String>

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

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

| 7.28 μs | 9.16 μs | 1.26 | 0.05 | False | | |

![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 'System.Collections.TryGetValueTrue*'
```

### System.Collections.TryGetValueTrue<String, String>.Dictionary(Size: 512)

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [20078050f3314428d8ed376dc0085b35856b105a](https://github.com/dotnet/runtime/commit/20078050f3314428d8ed376dc0085b35856b105a)
Compare | [6489d3644fdda304c253ef0f943a58aa91393d66](https://github.com/dotnet/runtime/commit/6489d3644fdda304c253ef0f943a58aa91393d66)
Diff | [Diff](https://github.com/dotnet/runtime/compare/20078050f3314428d8ed376dc0085b35856b105a...6489d3644fdda304c253ef0f943a58aa91393d66)
Configs | CompilationMode:tiered, RunKind:micro

### Regressions in SIMD.RayTracerBench

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

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

| 259.92 ms | 286.02 ms | 1.10 | 0.01 | False | | |

![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 'SIMD.RayTracerBench*'
```

### SIMD.RayTracerBench.Bench

#### 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)