[Perf] Linux/arm64: 7 Improvements on 6/25/2026 11:48:06 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [d956c4aecfc052826e81f08e2e706de620c14d40](https://github.com/dotnet/runtime/commit/d956c4aecfc052826e81f08e2e706de620c14d40)
Compare | [99eb16b5420fe88e333e2d95600b8617a86d54ff](https://github.com/dotnet/runtime/commit/99eb16b5420fe88e333e2d95600b8617a86d54ff)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d956c4aecfc052826e81f08e2e706de620c14d40...99eb16b5420fe88e333e2d95600b8617a86d54ff)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Exceptions.Handling

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

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

| 2.51 μs | 2.27 μs | 0.90 | 0.10 | False | | |
|

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

| 2.25 μs | 2.05 μs | 0.91 | 0.12 | False | | |
|

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

| 2.39 μs | 2.19 μs | 0.91 | 0.15 | False | | |
|

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

| 2.25 μs | 2.07 μs | 0.92 | 0.11 | False | | |
|

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

| 2.36 μs | 2.21 μs | 0.93 | 0.11 | False | | |
|

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

| 6.95 μs | 6.51 μs | 0.94 | 0.09 | False | | |

![graph]()
![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 'Exceptions.Handling*'
```

### Exceptions.Handling.ThrowAndCatch_ManyCatchBlocks(kind: Software)

#### ETL Files

#### Histogram

#### JIT Disasms

### Exceptions.Handling.MultipleNestedTryCatch_FirstCatches(kind: Software)

#### ETL Files

#### Histogram

#### JIT Disasms

### Exceptions.Handling.ThrowAndCatchWhen(kind: Software)

#### ETL Files

#### Histogram

#### JIT Disasms

### Exceptions.Handling.ThrowAndCatchFinally(kind: Software)

#### ETL Files

#### Histogram

#### JIT Disasms

### Exceptions.Handling.ThrowAndCatchWhenFinally(kind: Software)

#### ETL Files

#### Histogram

#### JIT Disasms

### Exceptions.Handling.ThrowAndCatch(kind: ReflectionSoftware)

#### 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 | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [d956c4aecfc052826e81f08e2e706de620c14d40](https://github.com/dotnet/runtime/commit/d956c4aecfc052826e81f08e2e706de620c14d40)
Compare | [99eb16b5420fe88e333e2d95600b8617a86d54ff](https://github.com/dotnet/runtime/commit/99eb16b5420fe88e333e2d95600b8617a86d54ff)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d956c4aecfc052826e81f08e2e706de620c14d40...99eb16b5420fe88e333e2d95600b8617a86d54ff)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Tests.Perf_Type

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

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

| 1.38 μs | 1.29 μs | 0.93 | 0.10 | 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.Tests.Perf_Type*'
```

### System.Tests.Perf_Type.GetType_FullyQualifiedNames(input: typeof(System.Int32&))

#### 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 with the benchmark definitions in src/benchmarks/micro/runtime/Exceptions/Handling.cs and the listed System.Tests.Perf_Type results. Run the provided benchmarks_ci.py command with the Exceptions.Handling filter, compare the reported measurements with the linked baseline and compare commits, and use the report to determine what requires follow-up.

Written by the indexing model from the issue text.