[Perf] Linux/x64: 5 Improvements on 4/17/2026 10:02:18 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [69fb4febb73b60ed277098cd3077fde8fdda823c](https://github.com/dotnet/runtime/commit/69fb4febb73b60ed277098cd3077fde8fdda823c)
Compare | [38af44d518908fa536ef289d62c73706769d18ab](https://github.com/dotnet/runtime/commit/38af44d518908fa536ef289d62c73706769d18ab)
Diff | [Diff](https://github.com/dotnet/runtime/compare/69fb4febb73b60ed277098cd3077fde8fdda823c...38af44d518908fa536ef289d62c73706769d18ab)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Collections.CreateAddAndClear<String>

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

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

| 2.80 μs | 1.76 μs | 0.63 | 0.65 | False | | |
|

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

| 2.37 μs | 1.71 μs | 0.72 | 0.60 | False | | |
|

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

| 2.68 μs | 1.97 μs | 0.73 | 0.48 | False | | |
|

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

| 1.63 μs | 1.20 μs | 0.74 | 0.73 | False | | |
|

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

| 2.01 μs | 1.61 μs | 0.80 | 0.58 | False | | |

![graph]()
![graph]()
![graph]()
![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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.CreateAddAndClear*'
```

### System.Collections.CreateAddAndClear<String>.List(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.CreateAddAndClear<String>.Stack(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.CreateAddAndClear<String>.Queue(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.CreateAddAndClear<String>.Array(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.CreateAddAndClear<String>.ICollection(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)