[Perf] Linux/x64: 3 Regressions on 4/19/2025 3:42:13 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0](https://github.com/dotnet/runtime/commit/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0)
Compare | [69329ef06681d926604e6f4169a50ae1ca8598a8](https://github.com/dotnet/runtime/commit/69329ef06681d926604e6f4169a50ae1ca8598a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0...69329ef06681d926604e6f4169a50ae1ca8598a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Concurrent.IsEmpty&lt;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/System.Collections.Concurrent.IsEmpty(String).Dictionary(Size%3a%200).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Concurrent/IsEmpty.cs#L28-#L29>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1STY/TMBC9V+p/GHpxK7JNmhUsGzACuhUgtJdtBWeTTBojx67sMdssy39n3KYXLjP+ePP85o0NEhAGAgkfxHYIhP1y7YzBmrSzgde2jt6jpeXXsOkPNLzbktd2/355p08Y5Yf5Vj9hBcVCvJ1ODDOqltAzZaMISfc4L4vy1VVRXpXXu9WbanVTFeXy9vXN6va6fFkUVVEsxkqPB8eFonFkkXIfbaq/8P70ytZduvfYhrxD1YS8V9peALWzrd6nlwerel3P/4i16w/aqCT13jUoKhCk0WMjMhAP0X7TtkmHjPZO/E1CPiN90YGc17Uyd4rUD01d4lFeB3ZlnhyTKWTnVuUpZif1MoVslCrPKRuFyXNaTCfPcPDuF7sMW/QaQwafojbNjpvdkuoPGXxXJqLc8SNrxy6gf8AQDX38jV7tcTrJ82d47LiRkQFeMDmxFwFmM3KbY21ig7MZ5DlsjkxpEFwLrTbMxQMEF3lQEE7FSRAPueGpJb/rTnmCR+4a5meAvMg81s7E3sr/5Q7n8yBPuhlHmgxKwfYhOz2M23tUIXrs+UOJxT9175qbfQIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 172.33 ns | 193.93 ns | 1.13 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.Concurrent.IsEmpty%28String%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.Concurrent.IsEmpty%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.Concurrent.IsEmpty&lt;String&gt;*'
```

<details>

### System.Collections.Concurrent.IsEmpty&lt;String&gt;.Dictionary(Size: 0)

#### 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 | TigerUbuntu
Baseline | [7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0](https://github.com/dotnet/runtime/commit/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0)
Compare | [69329ef06681d926604e6f4169a50ae1ca8598a8](https://github.com/dotnet/runtime/commit/69329ef06681d926604e6f4169a50ae1ca8598a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0...69329ef06681d926604e6f4169a50ae1ca8598a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.Concurrent.Count&lt;Int32&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/System.Collections.Concurrent.Count(Int32).Dictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Concurrent/Count.cs#L28-#L29>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 169.54 ns | 179.06 ns | 1.06 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.Concurrent.Count%28Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/System.Collections.Concurrent.Count%28Int32%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.Concurrent.Count&lt;Int32&gt;*'
```

<details>

### System.Collections.Concurrent.Count&lt;Int32&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 | TigerUbuntu
Baseline | [7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0](https://github.com/dotnet/runtime/commit/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0)
Compare | [69329ef06681d926604e6f4169a50ae1ca8598a8](https://github.com/dotnet/runtime/commit/69329ef06681d926604e6f4169a50ae1ca8598a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0...69329ef06681d926604e6f4169a50ae1ca8598a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Parse_ParallelAsync - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length%3a%20128%2c%20Chunks%3a%2016).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.IO.Pipelines/PipeThroughputBenchmark.cs#L49-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 579.42 ns | 638.96 ns | 1.10 | 0.24 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/04_22_2025/refs/heads/main_x64_ubuntu%2022.04_Regression/Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.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 'Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark*'
```

<details>

### Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

#### 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/x64: 3 Regressions on 4/19/2025 3:42:13 AM +00:00 #115004

Run Information

Regressions in System.Collections.Concurrent.IsEmpty<String>

Repro

System.Collections.Concurrent.IsEmpty<String>.Dictionary(Size: 0)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.Concurrent.Count<Int32>

Repro

System.Collections.Concurrent.Count<Int32>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Repro

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

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Development

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	7b5faf3eff641ca3d3c5a87bc9b4f271a0b877c0
Compare	69329ef06681d926604e6f4169a50ae1ca8598a8
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

[Perf] Linux/x64: 3 Regressions on 4/19/2025 3:42:13 AM +00:00 #115004

Description

Run Information

Regressions in System.Collections.Concurrent.IsEmpty<String>

Repro

System.Collections.Concurrent.IsEmpty<String>.Dictionary(Size: 0)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Collections.Concurrent.Count<Int32>

Repro

System.Collections.Concurrent.Count<Int32>.Dictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark

Repro

Microsoft.AspNetCore.Server.Kestrel.Performance.PipeThroughputBenchmark.Parse_ParallelAsync(Length: 128, Chunks: 16)

ETL Files

Histogram

JIT Disasms

Docs

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions