[Perf] Windows/x64: 3 Regressions on 4/2/2026 1:30:32 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [54e4456b01060f54e5bb7d715e77e5f41bac558f](https://github.com/dotnet/runtime/commit/54e4456b01060f54e5bb7d715e77e5f41bac558f)
Compare | [bbb12bcd955a6d1070d70a374edf8d4a0482d4c3](https://github.com/dotnet/runtime/commit/bbb12bcd955a6d1070d70a374edf8d4a0482d4c3)
Diff | [Diff](https://github.com/dotnet/runtime/compare/54e4456b01060f54e5bb7d715e77e5f41bac558f...bbb12bcd955a6d1070d70a374edf8d4a0482d4c3)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Interop.StructureToPtr

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[MarshalStructureToPtr - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Interop.StructureToPtr.MarshalStructureToPtr.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Interop/StructureToPtr.cs#L15-#L28>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 64.35 ns | 83.51 ns | 1.30 | 0.39 | False | | |
|<ul><li>[MarshalPtrToStructure - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Interop.StructureToPtr.MarshalPtrToStructure.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Interop/StructureToPtr.cs#L30-#L40>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 70.64 ns | 89.77 ns | 1.27 | 0.39 | False | | |
|<ul><li>[MarshalDestroyStructure - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22631/ViperWindows/Interop.StructureToPtr.MarshalDestroyStructure.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Interop/StructureToPtr.cs#L42-#L60>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 175.90 ns | 208.08 ns | 1.18 | 0.24 | False | | |

[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_07_2026/refs/heads/main_x64_Windows%2010.0.22631/ViperWindows_Regression/Interop.StructureToPtr.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 'Interop.StructureToPtr*'
```

<details>

### Interop.StructureToPtr.MarshalStructureToPtr

#### ETL Files

#### Histogram

#### JIT Disasms

### Interop.StructureToPtr.MarshalPtrToStructure

#### ETL Files

#### Histogram

#### JIT Disasms

### Interop.StructureToPtr.MarshalDestroyStructure

#### 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 4/2/2026 1:30:32 AM +00:00 #126608

Run Information

Regressions in Interop.StructureToPtr

Repro

Interop.StructureToPtr.MarshalStructureToPtr

ETL Files

Histogram

JIT Disasms

Interop.StructureToPtr.MarshalPtrToStructure

ETL Files

Histogram

JIT Disasms

Interop.StructureToPtr.MarshalDestroyStructure

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Assignees

Labels

Type

Fields

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Development

Name	Value
Architecture	x64
OS	Windows 10.0.22631
Queue	ViperWindows
Baseline	54e4456b01060f54e5bb7d715e77e5f41bac558f
Compare	bbb12bcd955a6d1070d70a374edf8d4a0482d4c3
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
MarshalStructureToPtr - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	64.35 ns	83.51 ns	1.30	0.39	False
MarshalPtrToStructure - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	70.64 ns	89.77 ns	1.27	0.39	False
MarshalDestroyStructure - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	175.90 ns	208.08 ns	1.18	0.24	False

[Perf] Windows/x64: 3 Regressions on 4/2/2026 1:30:32 AM +00:00 #126608

Description

Run Information

Regressions in Interop.StructureToPtr

Repro

Interop.StructureToPtr.MarshalStructureToPtr

ETL Files

Histogram

JIT Disasms

Interop.StructureToPtr.MarshalPtrToStructure

ETL Files

Histogram

JIT Disasms

Interop.StructureToPtr.MarshalDestroyStructure

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

Assignees

Labels

Type

Fields

Projects

Milestone

Relationships

Development

Issue actions