[Perf] Linux/x64: 3 Improvements on 7/29/2026 2:44:38 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [68fdb23f5c6b09942af65bdf339e305f03d53567](https://github.com/dotnet/runtime/commit/68fdb23f5c6b09942af65bdf339e305f03d53567)
Compare | [0a25043f48f83ecfa896966929f25f792463344b](https://github.com/dotnet/runtime/commit/0a25043f48f83ecfa896966929f25f792463344b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/68fdb23f5c6b09942af65bdf339e305f03d53567...0a25043f48f83ecfa896966929f25f792463344b)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in Microsoft.Extensions.Logging.EventSourceLogger

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

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

| 1.80 μs | 1.63 μs | 0.91 | 0.02 | False | | |
|

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

| 1.79 μs | 1.64 μs | 0.92 | 0.01 | False | | |

![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 'Microsoft.Extensions.Logging.EventSourceLogger*'
```

### Microsoft.Extensions.Logging.EventSourceLogger.NestedScopes_TwoMessages(HasSubscribers: True, Json: True)

#### ETL Files

#### Histogram

#### JIT Disasms

### Microsoft.Extensions.Logging.EventSourceLogger.NestedScopes_TwoMessages(HasSubscribers: True, Json: False)

#### 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 | ViperUbuntu
Baseline | [68fdb23f5c6b09942af65bdf339e305f03d53567](https://github.com/dotnet/runtime/commit/68fdb23f5c6b09942af65bdf339e305f03d53567)
Compare | [0a25043f48f83ecfa896966929f25f792463344b](https://github.com/dotnet/runtime/commit/0a25043f48f83ecfa896966929f25f792463344b)
Diff | [Diff](https://github.com/dotnet/runtime/compare/68fdb23f5c6b09942af65bdf339e305f03d53567...0a25043f48f83ecfa896966929f25f792463344b)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Numerics.Tests.Perf_BigInteger

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

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

| 6.66 ns | 5.27 ns | 0.79 | 0.07 | 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.Numerics.Tests.Perf_BigInteger*'
```

### System.Numerics.Tests.Perf_BigInteger.Equals(arguments: 259 bytes, Same)

#### 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 sources EventSourceBenchmark.cs and Perf.BigInteger.cs, then run the provided benchmarks_ci.py commands from the dotnet/performance repository. Compare the reported baseline and test results with the linked reports and determine whether the measured improvements need further investigation or triage.

Written by the indexing model from the issue text.