[Perf] Linux/arm64: 7 Improvements on 6/2/2026 9:47:51 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | azurelinux 3.0
Queue | CobaltAzureLinux
Baseline | [ea17bc533bbb01db331c56a05751ac23e73ea8c8](https://github.com/dotnet/runtime/commit/ea17bc533bbb01db331c56a05751ac23e73ea8c8)
Compare | [a4461ef220fee765e5b632178b8f935625f7077e](https://github.com/dotnet/runtime/commit/a4461ef220fee765e5b632178b8f935625f7077e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ea17bc533bbb01db331c56a05751ac23e73ea8c8...a4461ef220fee765e5b632178b8f935625f7077e)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Linq.Tests.Perf_Enumerable

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

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

| 317.37 ns | 63.21 ns | 0.20 | 0.29 | False | | |
|

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

| 282.05 ns | 56.66 ns | 0.20 | 0.13 | False | | |
|

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

| 315.87 ns | 76.22 ns | 0.24 | 0.15 | False | | |
|

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

| 280.91 ns | 78.38 ns | 0.28 | 0.30 | False | | |
|

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

| 277.80 ns | 79.48 ns | 0.29 | 0.23 | False | | |
|

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

| 175.65 ns | 76.01 ns | 0.43 | 0.20 | False | | |
|

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

| 323.95 ns | 295.85 ns | 0.91 | 0.20 | False | | |

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[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 'System.Linq.Tests.Perf_Enumerable*'
```

### System.Linq.Tests.Perf_Enumerable.Average(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.SingleWithPredicate_FirstElementMatches(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.Min(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.Max(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.Aggregate(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.LastWithPredicate_FirstElementMatches(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.LastWithPredicate_FirstElementMatches(input: IOrderedEnumerable)

#### 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)