[Perf] Linux/arm64: 2 Regressions on 12/5/2023 8:53:15 AM

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7](https://github.com/dotnet/runtime/commit/88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7)
Compare | [6798f84d1b50fa1aa76f6405f04cb3f2f77da641](https://github.com/dotnet/runtime/commit/6798f84d1b50fa1aa76f6405f04cb3f2f77da641)
Diff | [Diff](https://github.com/dotnet/runtime/compare/88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7...6798f84d1b50fa1aa76f6405f04cb3f2f77da641)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateFor&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.IterateFor(String).ImmutableArray(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateFor.cs#L102-#L110>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 197.11 ns | 219.99 ns | 1.12 | 0.20 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/12_14_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateFor%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/12_14_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateFor%28String%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.IterateFor&lt;String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-31e17385-06c3-4d87-9fe4-ce54874a1435db582e2994f46779f/ede2e5d2-3348-48dc-a13b-a88300a8afa3.zip?sv=2021-08-06&se=2024-01-03T08%3A26%3A45Z&sr=c&sp=rl&sig=xYSsT8OQnxA0obCGkZ20p%2F3cy5ZT2p27tutcGhof%2FpA%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-96a5bf01-977d-466c-b6a0-bb606a1d0e9ea5860175e2a40b886/8d624afc-ff47-433b-95db-f35e5ea75408.zip?sv=2021-08-06&se=2024-01-05T01%3A01%3A11Z&sr=c&sp=rl&sig=oFoisWkX7IUj7Wn9mh4oR0E8Mx2IXuxJskviPQj4lsc%3D>)
### System.Collections.IterateFor&lt;String&gt;.ImmutableArray(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 | arm64
OS | ubuntu 20.04
Queue | AmpereUbuntu
Baseline | [88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7](https://github.com/dotnet/runtime/commit/88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7)
Compare | [6798f84d1b50fa1aa76f6405f04cb3f2f77da641](https://github.com/dotnet/runtime/commit/6798f84d1b50fa1aa76f6405f04cb3f2f77da641)
Diff | [Diff](https://github.com/dotnet/runtime/compare/88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7...6798f84d1b50fa1aa76f6405f04cb3f2f77da641)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.IterateForEach&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Span - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 20.04/System.Collections.IterateForEach(String).Span(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Iterate/IterateForEach.cs#L63-#L72>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UXW/TQBB8R+I/3NvZ4CauG0gb4Yo0pCVAUEjyhhC62Fv70H1Ye+c2rhC/nTsnCk0rIb9Yt+OZ2b31rufATI0gQVnz4je5LwGBXNVc5EuoNElTQnNtFdg+1spyCfSYdYVMZWXLQ7g1/RJYbvqScfWEOMas5BYy67IRrkhAt28HNCKUoXSH8MBeg7FfmQTv+Z6uGmNB9iZaCKflWpnezAIyC9capywr360sclVc9lYVU8GKP8CIvDlNwn/pl7WaaHXLi9rJvMN3OtGy4qKN5joH+oOkfwi13NFz+vJ/Sgd95irfKyTPUD8ScAOysk3wTDjWNuxAm2nzRdzJtmFd+J/MVBVcQReuN+7Cm2ulO5brqTPlPkeF4J5dJItCr5uqU8GLsjE8Y2KBWmqPdBV+bDbI8xuhN0zwhxbrIlsmy64ZptsK0C2Daif1eHYn2i0K4FpX+9PxHqydbGWZrMglyd0Y+50Kkjg5O4kvTk4H63g4GpyPBsNecjEcnA+T13E8imOfwtRSMnQDThgWPyXbBq2hryAir0KyaZ5kiA67FPlR/lZDDc6nQv3L7dIz8hJMLWyKruo8eHSTHT6+c1tXOKezMCKtlTdOr5GDykVzQHyz2sCXjO4dIPF3zEqGltxzW5LAuOaBSQ+aiGwzLWqp0qc1NTvcpLsiHNFyKyClH1zr3N+j2YdeQgJlQo+ZSnCbsi2Y8C9fKCu23wQAAA==>)</li></ul> | 187.75 ns | 215.96 ns | 1.15 | 0.27 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/12_14_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateForEach%28String%29_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/12_14_2023/refs/heads/main_arm64_ubuntu%2020.04_Regression/System.Collections.IterateForEach%28String%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.IterateForEach&lt;String&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-31e17385-06c3-4d87-9fe4-ce54874a1435db582e2994f46779f/ede2e5d2-3348-48dc-a13b-a88300a8afa3.zip?sv=2021-08-06&se=2024-01-03T08%3A26%3A45Z&sr=c&sp=rl&sig=xYSsT8OQnxA0obCGkZ20p%2F3cy5ZT2p27tutcGhof%2FpA%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-96a5bf01-977d-466c-b6a0-bb606a1d0e9ea5860175e2a40b886/8d624afc-ff47-433b-95db-f35e5ea75408.zip?sv=2021-08-06&se=2024-01-05T01%3A01%3A11Z&sr=c&sp=rl&sig=oFoisWkX7IUj7Wn9mh4oR0E8Mx2IXuxJskviPQj4lsc%3D>)
### System.Collections.IterateForEach&lt;String&gt;.Span(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>

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[Perf] Linux/arm64: 2 Regressions on 12/5/2023 8:53:15 AM #96499

Run Information

Regressions in System.Collections.IterateFor<String>

Repro

Payloads

System.Collections.IterateFor<String>.ImmutableArray(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateForEach<String>

Repro

Payloads

System.Collections.IterateForEach<String>.Span(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Name	Value
Architecture	arm64
OS	ubuntu 20.04
Queue	AmpereUbuntu
Baseline	88b5e3d4b77dd8238331ade1b31ac8ddc62f22f7
Compare	6798f84d1b50fa1aa76f6405f04cb3f2f77da641
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

[Perf] Linux/arm64: 2 Regressions on 12/5/2023 8:53:15 AM #96499

Description

Run Information

Regressions in System.Collections.IterateFor<String>

Repro

Payloads

System.Collections.IterateFor<String>.ImmutableArray(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.IterateForEach<String>

Repro

Payloads

System.Collections.IterateForEach<String>.Span(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions