[Perf] Linux/arm64: 7 Regressions on 4/16/2024 8:34:24 PM

### Run Information

Name | Value
-- | --
Architecture | arm64
OS | ubuntu 22.04
Queue | AmpereUbuntu
Baseline | [08426cd832dade35426b511284dc4e843054dcf5](https://github.com/dotnet/runtime/commit/08426cd832dade35426b511284dc4e843054dcf5)
Compare | [e126f8ff2e635ef104b8f1212ec76420f114e99d](https://github.com/dotnet/runtime/commit/e126f8ff2e635ef104b8f1212ec76420f114e99d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/08426cd832dade35426b511284dc4e843054dcf5...e126f8ff2e635ef104b8f1212ec76420f114e99d)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Tests.Perf_Random

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ctor_seeded - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Tests.Perf_Random.ctor_seeded.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Random.cs#L17-#L18>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACo1UXW/TMBR9R+I/+M0JZG1WOjpVCqIrYwwoKlnfEKrc+LYx8kd07WzNhPjt2GlV1k5CeYnik3POPb66NzNgtkZQoJ198Zs8lIBArmoheQ6VIVlGKDdOg+tjrZ1QQI9ZV8h0UbY8hLXtl8C47Ssm9AlxgkUpHBTOVyNCk4hu3w5pQihD5V/iA3sB1n1jCoLne3rXWAeqF0DbmwOulznT3Khe4QwuLQAH/q9SXuup0WuxqZE5YbT9QadGVUK2p5nhQH+S7A+hTng6py//p/TQF6H5XqFEgeaJQFhQlWuiZ8KJcXEH2q2xX+W9anvThf/ZXuuN0NCFG4y78GZGm45xA/VWO8AKwT+7SOYbs2iqToHnZWNFweQcjTIB6Sr81KxQ8BtpVkyKxxbrIssHedcK19sK0M+9bofyeEynxu8E4MJU+7fjkV942Z1jqiLvCGcOwvpEg3QwPEsHZ+eXi3Q0vjgfp6Pe8HIwSi8vXqfpOE1DCVsrxVA8AmG4WSq2jVrDkCAhr2Kyak4qJIe1ScIof6+hBu9TofnlV+4ZOQdbS5ehT82jJzfZ4ZN7QLbxTm/ihLRWwTj7iAI0l80BCc1qDyEy+m+AJNyxKBk68iBcSSLrmwc2O2gSsi2MrJXOTjM1O9xmuxCe6ISTkNEPvnX+R9Hsj0FCIm3jgNlKCpexLdj4L42Dv9LKBAAA>)</li></ul> | 547.36 ns | 587.56 ns | 1.07 | 0.00 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Tests.Perf_Random_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Tests.Perf_Random.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.Tests.Perf_Random*'
```

<details>

### System.Tests.Perf_Random.ctor_seeded

#### 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 22.04
Queue | AmpereUbuntu
Baseline | [08426cd832dade35426b511284dc4e843054dcf5](https://github.com/dotnet/runtime/commit/08426cd832dade35426b511284dc4e843054dcf5)
Compare | [e126f8ff2e635ef104b8f1212ec76420f114e99d](https://github.com/dotnet/runtime/commit/e126f8ff2e635ef104b8f1212ec76420f114e99d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/08426cd832dade35426b511284dc4e843054dcf5...e126f8ff2e635ef104b8f1212ec76420f114e99d)
Configs | CompilationMode:tiered, RunKind:micro


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

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[List - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.ContainsTrue(String).List(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L78-#L87>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 481.84 μs | 523.07 μs | 1.09 | 0.02 | False | | |
|<ul><li>[ImmutableArray - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.ContainsTrue(String).ImmutableArray(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L200-#L209>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 482.85 μs | 525.62 μs | 1.09 | 0.00 | False | | |
|<ul><li>[Stack - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.ContainsTrue(String).Stack(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L164-#L173>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 483.22 μs | 523.15 μs | 1.08 | 0.01 | False | | |
|<ul><li>[ICollection - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Collections.ContainsTrue(String).ICollection(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsTrue.cs#L89-#L91>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 478.02 μs | 520.53 μs | 1.09 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%28String%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%28String%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%28String%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%28String%29_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Collections.ContainsTrue%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.ContainsTrue&lt;String&gt;*'
```

<details>

### System.Collections.ContainsTrue&lt;String&gt;.List(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.ContainsTrue&lt;String&gt;.ImmutableArray(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.ContainsTrue&lt;String&gt;.Stack(Size: 512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Collections.ContainsTrue&lt;String&gt;.ICollection(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 22.04
Queue | AmpereUbuntu
Baseline | [08426cd832dade35426b511284dc4e843054dcf5](https://github.com/dotnet/runtime/commit/08426cd832dade35426b511284dc4e843054dcf5)
Compare | [e126f8ff2e635ef104b8f1212ec76420f114e99d](https://github.com/dotnet/runtime/commit/e126f8ff2e635ef104b8f1212ec76420f114e99d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/08426cd832dade35426b511284dc4e843054dcf5...e126f8ff2e635ef104b8f1212ec76420f114e99d)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Benchstone.BenchI.BenchE

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Test - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/Benchstone.BenchI.BenchE.Test.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/Benchstones/BenchI/BenchE.cs#L70-#L86>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 711.75 ms | 859.03 ms | 1.21 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/Benchstone.BenchI.BenchE_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/Benchstone.BenchI.BenchE.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 'Benchstone.BenchI.BenchE*'
```

<details>

### Benchstone.BenchI.BenchE.Test

#### 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 22.04
Queue | AmpereUbuntu
Baseline | [08426cd832dade35426b511284dc4e843054dcf5](https://github.com/dotnet/runtime/commit/08426cd832dade35426b511284dc4e843054dcf5)
Compare | [e126f8ff2e635ef104b8f1212ec76420f114e99d](https://github.com/dotnet/runtime/commit/e126f8ff2e635ef104b8f1212ec76420f114e99d)
Diff | [Diff](https://github.com/dotnet/runtime/compare/08426cd832dade35426b511284dc4e843054dcf5...e126f8ff2e635ef104b8f1212ec76420f114e99d)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Linq.Tests.Perf_Enumerable

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WhereSingleOrDefault_LastElementMatches - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_arm64_ubuntu 22.04/System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input%3a%20IEnumerable).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Linq/Perf.Enumerable.cs#L130-#L132>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 364.78 ns | 406.26 ns | 1.11 | 0.05 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Linq.Tests.Perf_Enumerable_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_18_2024/refs/heads/main_arm64_ubuntu%2022.04_Regression/System.Linq.Tests.Perf_Enumerable.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.Linq.Tests.Perf_Enumerable*'
```

<details>

### System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input: IEnumerable)

#### 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	arm64
OS	ubuntu 22.04
Queue	AmpereUbuntu
Baseline	08426cd832dade35426b511284dc4e843054dcf5
Compare	e126f8ff2e635ef104b8f1212ec76420f114e99d
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
List - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	481.84 μs	523.07 μs	1.09	0.02	False
ImmutableArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	482.85 μs	525.62 μs	1.09	0.00	False
Stack - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	483.22 μs	523.15 μs	1.08	0.01	False
ICollection - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	478.02 μs	520.53 μs	1.09	0.04	False

[Perf] Linux/arm64: 7 Regressions on 4/16/2024 8:34:24 PM #101247

Description

Run Information

Regressions in System.Tests.Perf_Random

Repro

System.Tests.Perf_Random.ctor_seeded

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.ContainsTrue<String>

Repro

System.Collections.ContainsTrue<String>.List(Size: 512)

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

System.Collections.ContainsTrue<String>.Stack(Size: 512)

ETL Files

Histogram

JIT Disasms

System.Collections.ContainsTrue<String>.ICollection(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Benchstone.BenchI.BenchE

Repro

Benchstone.BenchI.BenchE.Test

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Linq.Tests.Perf_Enumerable

Repro

System.Linq.Tests.Perf_Enumerable.WhereSingleOrDefault_LastElementMatches(input: IEnumerable)

ETL Files

Histogram

JIT Disasms

Docs

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