[Perf] Linux/x64: 8 Regressions on 9/17/2025 11:07:03 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a54973e96758c02dca072e1a20108b56e442a4bc](https://github.com/dotnet/runtime/commit/a54973e96758c02dca072e1a20108b56e442a4bc)
Compare | [4999995b87603d106c161094e1632cb5ff07cd4f](https://github.com/dotnet/runtime/commit/4999995b87603d106c161094e1632cb5ff07cd4f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a54973e96758c02dca072e1a20108b56e442a4bc...4999995b87603d106c161094e1632cb5ff07cd4f)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Collections.TryGetValueFalse&lt;String, String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueFalse(String%2c%20String).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueFalse.cs#L54-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.67 μs | 12.88 μs | 1.21 | 0.02 | False | | |
|<ul><li>[FrozenDictionaryOptimized - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueFalse(String%2c%20String).FrozenDictionaryOptimized(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueFalse.cs#L134-#L143>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 18.20 μs | 20.53 μs | 1.13 | 0.09 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28String%2C%20String%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28String%2C%20String%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28String%2C%20String%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueFalse&lt;String, String&gt;*'
```

<details>

### System.Collections.TryGetValueFalse&lt;String, String&gt;.Dictionary(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.TryGetValueFalse&lt;String, String&gt;.FrozenDictionaryOptimized(Size: 512)

#### 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a54973e96758c02dca072e1a20108b56e442a4bc](https://github.com/dotnet/runtime/commit/a54973e96758c02dca072e1a20108b56e442a4bc)
Compare | [4999995b87603d106c161094e1632cb5ff07cd4f](https://github.com/dotnet/runtime/commit/4999995b87603d106c161094e1632cb5ff07cd4f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a54973e96758c02dca072e1a20108b56e442a4bc...4999995b87603d106c161094e1632cb5ff07cd4f)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Collections.TryGetValueTrue&lt;SmallClass, SmallClass&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueTrue(SmallClass%2c%20SmallClass).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueTrue.cs#L52-#L61>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 16.17 μs | 19.33 μs | 1.20 | 0.17 | False | | |
|<ul><li>[FrozenDictionaryOptimized - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueTrue(SmallClass%2c%20SmallClass).FrozenDictionaryOptimized(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueTrue.cs#L132-#L141>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 23.11 μs | 26.40 μs | 1.14 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueTrue%28SmallClass%2C%20SmallClass%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueTrue%28SmallClass%2C%20SmallClass%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueTrue%28SmallClass%2C%20SmallClass%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueTrue&lt;SmallClass, SmallClass&gt;*'
```

<details>

### System.Collections.TryGetValueTrue&lt;SmallClass, SmallClass&gt;.Dictionary(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.TryGetValueTrue&lt;SmallClass, SmallClass&gt;.FrozenDictionaryOptimized(Size: 512)

#### 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a54973e96758c02dca072e1a20108b56e442a4bc](https://github.com/dotnet/runtime/commit/a54973e96758c02dca072e1a20108b56e442a4bc)
Compare | [4999995b87603d106c161094e1632cb5ff07cd4f](https://github.com/dotnet/runtime/commit/4999995b87603d106c161094e1632cb5ff07cd4f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a54973e96758c02dca072e1a20108b56e442a4bc...4999995b87603d106c161094e1632cb5ff07cd4f)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Collections.TryGetValueTrue&lt;String, String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueTrue(String%2c%20String).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueTrue.cs#L52-#L61>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 15.75 μs | 17.84 μs | 1.13 | 0.08 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueTrue%28String%2C%20String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueTrue%28String%2C%20String%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueTrue&lt;String, String&gt;*'
```

<details>

### System.Collections.TryGetValueTrue&lt;String, String&gt;.Dictionary(Size: 512)

#### 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a54973e96758c02dca072e1a20108b56e442a4bc](https://github.com/dotnet/runtime/commit/a54973e96758c02dca072e1a20108b56e442a4bc)
Compare | [4999995b87603d106c161094e1632cb5ff07cd4f](https://github.com/dotnet/runtime/commit/4999995b87603d106c161094e1632cb5ff07cd4f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a54973e96758c02dca072e1a20108b56e442a4bc...4999995b87603d106c161094e1632cb5ff07cd4f)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Collections.TryGetValueFalse&lt;SmallClass, SmallClass&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[FrozenDictionaryOptimized - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueFalse(SmallClass%2c%20SmallClass).FrozenDictionaryOptimized(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueFalse.cs#L134-#L143>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 13.45 μs | 16.66 μs | 1.24 | 0.17 | False | | |
|<ul><li>[Dictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Collections.TryGetValueFalse(SmallClass%2c%20SmallClass).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/TryGetValue/TryGetValueFalse.cs#L54-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 8.03 μs | 10.58 μs | 1.32 | 0.12 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28SmallClass%2C%20SmallClass%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28SmallClass%2C%20SmallClass%29_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Collections.TryGetValueFalse%28SmallClass%2C%20SmallClass%29.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueFalse&lt;SmallClass, SmallClass&gt;*'
```

<details>

### System.Collections.TryGetValueFalse&lt;SmallClass, SmallClass&gt;.FrozenDictionaryOptimized(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.TryGetValueFalse&lt;SmallClass, SmallClass&gt;.Dictionary(Size: 512)

#### 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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a54973e96758c02dca072e1a20108b56e442a4bc](https://github.com/dotnet/runtime/commit/a54973e96758c02dca072e1a20108b56e442a4bc)
Compare | [4999995b87603d106c161094e1632cb5ff07cd4f](https://github.com/dotnet/runtime/commit/4999995b87603d106c161094e1632cb5ff07cd4f)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a54973e96758c02dca072e1a20108b56e442a4bc...4999995b87603d106c161094e1632cb5ff07cd4f)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in PerfLabTests.CastingPerf2.CastingPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ObjObjrefValueType - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_AOT=true_CompilationMode=wasm_RunKind=micro/ViperUbuntu/PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf2.cs#L210-#L215>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 662.77 μs | 833.39 μs | 1.26 | 0.36 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/PerfLabTests.CastingPerf2.CastingPerf_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/09_23_2025/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/PerfLabTests.CastingPerf2.CastingPerf.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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'PerfLabTests.CastingPerf2.CastingPerf*'
```

<details>

### PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType

#### 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>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	a54973e96758c02dca072e1a20108b56e442a4bc
Compare	4999995b87603d106c161094e1632cb5ff07cd4f
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Dictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.67 μs	12.88 μs	1.21	0.02	False
FrozenDictionaryOptimized - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	18.20 μs	20.53 μs	1.13	0.09	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Dictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.17 μs	19.33 μs	1.20	0.17	False
FrozenDictionaryOptimized - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	23.11 μs	26.40 μs	1.14	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FrozenDictionaryOptimized - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.45 μs	16.66 μs	1.24	0.17	False
Dictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	8.03 μs	10.58 μs	1.32	0.12	False

[Perf] Linux/x64: 8 Regressions on 9/17/2025 11:07:03 AM +00:00 #62761

Description

Run Information

Regressions in System.Collections.TryGetValueFalse<String, String>

Repro

System.Collections.TryGetValueFalse<String, String>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.TryGetValueFalse<String, String>.FrozenDictionaryOptimized(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.TryGetValueTrue<SmallClass, SmallClass>

Repro

System.Collections.TryGetValueTrue<SmallClass, SmallClass>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.TryGetValueTrue<SmallClass, SmallClass>.FrozenDictionaryOptimized(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.TryGetValueTrue<String, String>

Repro

System.Collections.TryGetValueTrue<String, String>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.TryGetValueFalse<SmallClass, SmallClass>

Repro

System.Collections.TryGetValueFalse<SmallClass, SmallClass>.FrozenDictionaryOptimized(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.TryGetValueFalse<SmallClass, SmallClass>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in PerfLabTests.CastingPerf2.CastingPerf

Repro

PerfLabTests.CastingPerf2.CastingPerf.ObjObjrefValueType

ETL Files

Histogram

JIT Disasms

Docs

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