[Perf] Linux/x64: 16 Regressions on 6/14/2024 3:42:32 AM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [6927fea7b4bca1dc2cea7a0afba0373c1303cedc](https://github.com/dotnet/runtime/commit/6927fea7b4bca1dc2cea7a0afba0373c1303cedc)
Compare | [d901213ed6076c0989a2de2626b99c9711442543](https://github.com/dotnet/runtime/commit/d901213ed6076c0989a2de2626b99c9711442543)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6927fea7b4bca1dc2cea7a0afba0373c1303cedc...d901213ed6076c0989a2de2626b99c9711442543)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Buffers.Text.Tests.Base64Tests

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConvertToBase64CharArray - 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/System.Buffers.Text.Tests.Base64Tests.ConvertToBase64CharArray(NumberOfBytes%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/Base64Tests.cs#L49-#L50>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 911.07 ns | 1.31 μs | 1.44 | 0.01 | False | | |
|<ul><li>[Base64EncodeDestinationTooSmall - 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/System.Buffers.Text.Tests.Base64Tests.Base64EncodeDestinationTooSmall(NumberOfBytes%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/Base64Tests.cs#L39-#L40>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 718.17 ns | 1.11 μs | 1.55 | 0.01 | False | | |
|<ul><li>[Base64Encode - 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/System.Buffers.Text.Tests.Base64Tests.Base64Encode(NumberOfBytes%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Buffers/Base64Tests.cs#L29-#L30>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 722.48 ns | 1.13 μs | 1.57 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Buffers.Text.Tests.Base64Tests_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Buffers.Text.Tests.Base64Tests_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Buffers.Text.Tests.Base64Tests_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Buffers.Text.Tests.Base64Tests.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.Buffers.Text.Tests.Base64Tests*'
```

<details>

### System.Buffers.Text.Tests.Base64Tests.ConvertToBase64CharArray(NumberOfBytes: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Text.Tests.Base64Tests.Base64EncodeDestinationTooSmall(NumberOfBytes: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Buffers.Text.Tests.Base64Tests.Base64Encode(NumberOfBytes: 1000)

#### 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 | [6927fea7b4bca1dc2cea7a0afba0373c1303cedc](https://github.com/dotnet/runtime/commit/6927fea7b4bca1dc2cea7a0afba0373c1303cedc)
Compare | [d901213ed6076c0989a2de2626b99c9711442543](https://github.com/dotnet/runtime/commit/d901213ed6076c0989a2de2626b99c9711442543)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6927fea7b4bca1dc2cea7a0afba0373c1303cedc...d901213ed6076c0989a2de2626b99c9711442543)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Base64

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[WriteByteArrayAsBase64_NoEscaping - 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/System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Base64.cs#L37-#L38>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 930.77 ns | 1.34 μs | 1.44 | 0.02 | False | | |
|<ul><li>[WriteByteArrayAsBase64_HeavyEscaping - 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/System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes%3a%201000).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Base64.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 922.32 ns | 1.36 μs | 1.47 | 0.02 | False | | |
|<ul><li>[WriteByteArrayAsBase64_NoEscaping - 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/System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Base64.cs#L37-#L38>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 253.37 ns | 303.55 ns | 1.20 | 0.20 | False | | |
|<ul><li>[WriteByteArrayAsBase64_HeavyEscaping - 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/System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes%3a%20100).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonWriter/Perf.Base64.cs#L40-#L41>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 252.28 ns | 307.07 ns | 1.22 | 0.19 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Tests.Perf_Base64_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Tests.Perf_Base64_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Tests.Perf_Base64_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Tests.Perf_Base64_4.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Tests.Perf_Base64.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.Text.Json.Tests.Perf_Base64*'
```

<details>

### System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes: 1000)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes: 100)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes: 100)

#### 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 | [6927fea7b4bca1dc2cea7a0afba0373c1303cedc](https://github.com/dotnet/runtime/commit/6927fea7b4bca1dc2cea7a0afba0373c1303cedc)
Compare | [d901213ed6076c0989a2de2626b99c9711442543](https://github.com/dotnet/runtime/commit/d901213ed6076c0989a2de2626b99c9711442543)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6927fea7b4bca1dc2cea7a0afba0373c1303cedc...d901213ed6076c0989a2de2626b99c9711442543)
Configs | AOT:true, CompilationMode:wasm, 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>[WhereLast_LastElementMatches - 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/System.Linq.Tests.Perf_Enumerable.WhereLast_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#L66-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.30 μs | 12.92 μs | 1.14 | 0.21 | False | | |
|<ul><li>[WhereSingle_LastElementMatches - 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/System.Linq.Tests.Perf_Enumerable.WhereSingle_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#L124-#L126>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.30 μs | 13.56 μs | 1.20 | 0.27 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Linq.Tests.Perf_Enumerable_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Linq.Tests.Perf_Enumerable_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_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.WhereLast_LastElementMatches(input: IEnumerable)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.WhereSingle_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>


---


### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [6927fea7b4bca1dc2cea7a0afba0373c1303cedc](https://github.com/dotnet/runtime/commit/6927fea7b4bca1dc2cea7a0afba0373c1303cedc)
Compare | [d901213ed6076c0989a2de2626b99c9711442543](https://github.com/dotnet/runtime/commit/d901213ed6076c0989a2de2626b99c9711442543)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6927fea7b4bca1dc2cea7a0afba0373c1303cedc...d901213ed6076c0989a2de2626b99c9711442543)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[SerializeToUtf8Bytes - 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/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToUtf8Bytes(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L78-#L79>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.48 μs | 1.90 μs | 1.29 | 0.02 | False | | |
|<ul><li>[SerializeToWriter - 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/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToWriter(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L81-#L87>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.01 μs | 1.42 μs | 1.40 | 0.02 | False | | |
|<ul><li>[SerializeToUtf8Bytes - 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/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToUtf8Bytes(Mode%3a%20Reflection).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L78-#L79>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.79 μs | 2.13 μs | 1.19 | 0.02 | False | | |
|<ul><li>[SerializeToString - 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/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToString(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L75-#L76>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.11 μs | 2.51 μs | 1.19 | 0.02 | False | | |
|<ul><li>[SerializeToWriter - 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/System.Text.Json.Serialization.Tests.WriteJson(BinaryData).SerializeToWriter(Mode%3a%20Reflection).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/WriteJson.cs#L81-#L87>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.22 μs | 1.64 μs | 1.35 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_3.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_4.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%29_5.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Text.Json.Serialization.Tests.WriteJson%28BinaryData%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.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;*'
```

<details>

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToUtf8Bytes(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToWriter(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToUtf8Bytes(Mode: Reflection)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToString(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.WriteJson&lt;BinaryData&gt;.SerializeToWriter(Mode: Reflection)

#### 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 | [6927fea7b4bca1dc2cea7a0afba0373c1303cedc](https://github.com/dotnet/runtime/commit/6927fea7b4bca1dc2cea7a0afba0373c1303cedc)
Compare | [d901213ed6076c0989a2de2626b99c9711442543](https://github.com/dotnet/runtime/commit/d901213ed6076c0989a2de2626b99c9711442543)
Diff | [Diff](https://github.com/dotnet/runtime/compare/6927fea7b4bca1dc2cea7a0afba0373c1303cedc...d901213ed6076c0989a2de2626b99c9711442543)
Configs | AOT:true, CompilationMode:wasm, RunKind:micro


### Regressions in System.Perf_Convert

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ToBase64String - 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/System.Perf_Convert.ToBase64String(formattingOptions%3a%20None).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Convert.cs#L58-#L63>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.17 μs | 1.58 μs | 1.35 | 0.01 | False | | |
|<ul><li>[ToBase64CharArray - 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/System.Perf_Convert.ToBase64CharArray(binaryDataSize%3a%201024%2c%20formattingOptions%3a%20None).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Runtime.Extensions/Perf.Convert.cs#L48-#L53>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 915.74 ns | 1.33 μs | 1.46 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Perf_Convert_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Perf_Convert_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/06_20_2024/refs/heads/main_x64_ubuntu%2022.04_AOT%3Dtrue_CompilationMode%3Dwasm_RunKind%3Dmicro_Regression/System.Perf_Convert.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.Perf_Convert*'
```

<details>

### System.Perf_Convert.ToBase64String(formattingOptions: None)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Perf_Convert.ToBase64CharArray(binaryDataSize: 1024, formattingOptions: None)

#### 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	6927fea7b4bca1dc2cea7a0afba0373c1303cedc
Compare	d901213ed6076c0989a2de2626b99c9711442543
Diff	Diff
Configs	AOT:true, CompilationMode:wasm, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ConvertToBase64CharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	911.07 ns	1.31 μs	1.44	0.01	False
Base64EncodeDestinationTooSmall - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	718.17 ns	1.11 μs	1.55	0.01	False
Base64Encode - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	722.48 ns	1.13 μs	1.57	0.01	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
WriteByteArrayAsBase64_NoEscaping - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	930.77 ns	1.34 μs	1.44	0.02	False
WriteByteArrayAsBase64_HeavyEscaping - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	922.32 ns	1.36 μs	1.47	0.02	False
WriteByteArrayAsBase64_NoEscaping - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	253.37 ns	303.55 ns	1.20	0.20	False
WriteByteArrayAsBase64_HeavyEscaping - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	252.28 ns	307.07 ns	1.22	0.19	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
WhereLast_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.30 μs	12.92 μs	1.14	0.21	False
WhereSingle_LastElementMatches - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.30 μs	13.56 μs	1.20	0.27	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
SerializeToUtf8Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.48 μs	1.90 μs	1.29	0.02	False
SerializeToWriter - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.01 μs	1.42 μs	1.40	0.02	False
SerializeToUtf8Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.79 μs	2.13 μs	1.19	0.02	False
SerializeToString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.11 μs	2.51 μs	1.19	0.02	False
SerializeToWriter - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.22 μs	1.64 μs	1.35	0.03	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ToBase64String - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.17 μs	1.58 μs	1.35	0.01	False
ToBase64CharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	915.74 ns	1.33 μs	1.46	0.01	False

[Perf] Linux/x64: 16 Regressions on 6/14/2024 3:42:32 AM #36646

Description

Run Information

Regressions in System.Buffers.Text.Tests.Base64Tests

Repro

System.Buffers.Text.Tests.Base64Tests.ConvertToBase64CharArray(NumberOfBytes: 1000)

ETL Files

Histogram

JIT Disasms

System.Buffers.Text.Tests.Base64Tests.Base64EncodeDestinationTooSmall(NumberOfBytes: 1000)

ETL Files

Histogram

JIT Disasms

System.Buffers.Text.Tests.Base64Tests.Base64Encode(NumberOfBytes: 1000)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Base64

Repro

System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes: 1000)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes: 1000)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_NoEscaping(NumberOfBytes: 100)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Tests.Perf_Base64.WriteByteArrayAsBase64_HeavyEscaping(NumberOfBytes: 100)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Linq.Tests.Perf_Enumerable

Repro

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

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Serialization.Tests.WriteJson<BinaryData>

Repro

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToUtf8Bytes(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToWriter(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToUtf8Bytes(Mode: Reflection)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToString(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.WriteJson<BinaryData>.SerializeToWriter(Mode: Reflection)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Perf_Convert

Repro

System.Perf_Convert.ToBase64String(formattingOptions: None)

ETL Files

Histogram