[Perf] Windows/x64: 3 Regressions on 9/18/2025 6:51:53 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22621
Queue | TigerWindows
Baseline | [7551ceadda4a368b1953304ee7977caa79719870](https://github.com/dotnet/runtime/commit/7551ceadda4a368b1953304ee7977caa79719870)
Compare | [0416028536d7526404c74c137e9bd0eed9f9c24e](https://github.com/dotnet/runtime/commit/0416028536d7526404c74c137e9bd0eed9f9c24e)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7551ceadda4a368b1953304ee7977caa79719870...0416028536d7526404c74c137e9bd0eed9f9c24e)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToStringX - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString%3a%20123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Numerics/Perf.BigInteger.cs#L39-#L42>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 23.49 μs | 26.05 μs | 1.11 | 0.01 | False | | |
|<ul><li>[ToStringX - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString%3a%20123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Numerics/Perf.BigInteger.cs#L39-#L42>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 312.22 ns | 413.59 ns | 1.32 | 0.00 | False | | |
|<ul><li>[ToStringX - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString%3a%20123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Numerics/Perf.BigInteger.cs#L39-#L42>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 23.45 μs | 26.08 μs | 1.11 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Numerics.Tests.Perf_BigInteger_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Numerics.Tests.Perf_BigInteger_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Numerics.Tests.Perf_BigInteger_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Numerics.Tests.Perf_BigInteger.html>)

### 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.Numerics.Tests.Perf_BigInteger*'
```

<details>

### System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890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)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890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#### 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)

</details>

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[Perf] Windows/x64: 3 Regressions on 9/18/2025 6:51:53 PM +00:00 #120079

Run Information

Regressions in System.Numerics.Tests.Perf_BigInteger

Repro

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System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890)

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Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	7551ceadda4a368b1953304ee7977caa79719870
Compare	0416028536d7526404c74c137e9bd0eed9f9c24e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToStringX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	23.49 μs	26.05 μs	1.11	0.01	False
ToStringX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	312.22 ns	413.59 ns	1.32	0.00	False
ToStringX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	23.45 μs	26.08 μs	1.11	0.01	False

[Perf] Windows/x64: 3 Regressions on 9/18/2025 6:51:53 PM +00:00 #120079

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Regressions in System.Numerics.Tests.Perf_BigInteger

Repro

ETL Files

Histogram

JIT Disasms

System.Numerics.Tests.Perf_BigInteger.ToStringX(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890)

ETL Files

Histogram

JIT Disasms

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

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