[Perf] Linux/x64: Regression ObjectStringIsString

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [d06ebfee1cfd1ef437784013e93ccfcd31334ac0](https://github.com/dotnet/runtime/commit/d06ebfee1cfd1ef437784013e93ccfcd31334ac0)
Compare | [5742895d7c7493dfae4ac40ab36019995d256dd1](https://github.com/dotnet/runtime/commit/5742895d7c7493dfae4ac40ab36019995d256dd1)
Diff | [Diff](https://github.com/dotnet/runtime/compare/d06ebfee1cfd1ef437784013e93ccfcd31334ac0...5742895d7c7493dfae4ac40ab36019995d256dd1)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GenericClassGenericStaticMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L343-#L352>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 109.17 μs | 130.99 μs | 1.20 | 0.02 | False | | |
|<ul><li>[SealedClassInterfaceMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L189-#L200>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 109.53 μs | 131.42 μs | 1.20 | 0.05 | False | | |
|<ul><li>[GenericClassWithSTringGenericInstanceMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.GenericClassWithSTringGenericInstanceMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L372-#L380>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 154.23 μs | 182.39 μs | 1.18 | 0.20 | False | | |
|<ul><li>[ObjectStringIsString - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.ObjectStringIsString.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L231-#L240>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 65.74 μs | 92.93 μs | 1.41 | 0.00 | True | | |
|<ul><li>[InterfaceInterfaceMethodSwitchCallType - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.InterfaceInterfaceMethodSwitchCallType.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L157-#L168>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 525.42 μs | 568.86 μs | 1.08 | 0.02 | False | | |
|<ul><li>[GenericClassGenericInstanceMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/PerfLabTests.LowLevelPerf.GenericClassGenericInstanceMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L330-#L341>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 109.63 μs | 131.04 μs | 1.20 | 0.06 | False | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_2.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_3.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_4.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_5.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf_6.png>)
[Test Report](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/03_05_2024/refs/heads/main_x64_ubuntu%2022.04_Regression/PerfLabTests.LowLevelPerf.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.LowLevelPerf*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-a1d279d9-1801-456a-99a6-c290c0393e116097a114e5241a79f/80351620-252c-4026-a521-d57b8e9f2710.zip?sv=2021-08-06&se=2024-03-28T22%3A36%3A03Z&sr=c&sp=rl&sig=qEPnANqf6iEPzzF9QUtNigPscQSnxiqYhlM%2FcTS8mZ4%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fec813b0-9487-4869-b922-037d21ec222979d84afebbd49178d/57569dfd-ea94-4694-9211-519f6080c840.zip?sv=2021-08-06&se=2024-03-29T16%3A48%3A39Z&sr=c&sp=rl&sig=RTbnekeYfmR7M2uszIkQFJE88bkEmjhJ6BRQldni3ho%3D>)
### PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.GenericClassWithSTringGenericInstanceMethod

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.ObjectStringIsString

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.InterfaceInterfaceMethodSwitchCallType

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.LowLevelPerf.GenericClassGenericInstanceMethod

#### 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	TigerUbuntu
Baseline	d06ebfee1cfd1ef437784013e93ccfcd31334ac0
Compare	5742895d7c7493dfae4ac40ab36019995d256dd1
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
GenericClassGenericStaticMethod - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	109.17 μs	130.99 μs	1.20	0.02	False
SealedClassInterfaceMethod - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	109.53 μs	131.42 μs	1.20	0.05	False
GenericClassWithSTringGenericInstanceMethod - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	154.23 μs	182.39 μs	1.18	0.20	False
ObjectStringIsString - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	65.74 μs	92.93 μs	1.41	0.00	True
InterfaceInterfaceMethodSwitchCallType - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	525.42 μs	568.86 μs	1.08	0.02	False
GenericClassGenericInstanceMethod - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	109.63 μs	131.04 μs	1.20	0.06	False

[Perf] Linux/x64: Regression ObjectStringIsString #99314

Description

Run Information

Regressions in PerfLabTests.LowLevelPerf

Repro

Payloads

PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.GenericClassWithSTringGenericInstanceMethod

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.ObjectStringIsString

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.InterfaceInterfaceMethodSwitchCallType

ETL Files

Histogram

JIT Disasms

PerfLabTests.LowLevelPerf.GenericClassGenericInstanceMethod

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions