[Perf] Windows/x64: 8 Regressions on 1/18/2024 3:40:02 AM

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.18362
Queue | TigerWindows
Baseline | [bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780](https://github.com/dotnet/runtime/commit/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780)
Compare | [77d643d8678d0cae1144557f106bb693a1cbca25](https://github.com/dotnet/runtime/commit/77d643d8678d0cae1144557f106bb693a1cbca25)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780...77d643d8678d0cae1144557f106bb693a1cbca25)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IsMatch - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total%3a%2040000%2c%20unique%3a%201600%2c%20cacheSize%3a%2015).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.RegularExpressions/Perf.Regex.Cache.cs#L37-#L52>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 93.25 ms | 110.17 ms | 1.18 | 0.15 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Text.RegularExpressions.Tests.Perf_Regex_Cache.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Cache*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-351d6de4-f45b-473a-af18-54c29ae3ce34efcd5b3001c42ff88/4ea103d5-3cda-4b88-a8b5-f8e3e28be539.zip?sv=2021-08-06&se=2024-02-16T19%3A50%3A54Z&sr=c&sp=rl&sig=eSK3U8BtdxSkcpc%2FnZh%2FSdspftwAl2zt4OhLGmWQTeY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fb97180f-5a70-4450-bc46-a64b3683de35ec7c03ed33f4d66a1/0996d59c-a394-477c-b9f1-4fe26de1e617.zip?sv=2021-08-06&se=2024-02-17T12%3A01%3A25Z&sr=c&sp=rl&sig=Oj4HaEoiBC4F5RQdUNORIdfBi8U9o1bpGXT4hcKOGFI%3D>)
### System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total: 40000, unique: 1600, cacheSize: 15)

#### 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 | Windows 10.0.18362
Queue | TigerWindows
Baseline | [bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780](https://github.com/dotnet/runtime/commit/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780)
Compare | [77d643d8678d0cae1144557f106bb693a1cbca25](https://github.com/dotnet/runtime/commit/77d643d8678d0cae1144557f106bb693a1cbca25)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780...77d643d8678d0cae1144557f106bb693a1cbca25)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Diagnostics.Perf_Activity

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[EnumerateActivityTagsSmall - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Diagnostics.Perf_Activity.EnumerateActivityTagsSmall.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Diagnostics/Perf_Activity.cs#L105-#L111>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 34.27 ns | 37.23 ns | 1.09 | 0.09 | False | | |
|<ul><li>[EnumerateActivityEventsSmall - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Diagnostics.Perf_Activity.EnumerateActivityEventsSmall.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Diagnostics/Perf_Activity.cs#L153-#L159>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 28.43 ns | 30.43 ns | 1.07 | 0.27 | False | | |
|<ul><li>[EnumerateActivityLinksSmall - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Diagnostics.Perf_Activity.EnumerateActivityLinksSmall.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Diagnostics/Perf_Activity.cs#L137-#L143>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 28.02 ns | 31.28 ns | 1.12 | 0.26 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Diagnostics.Perf_Activity_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Diagnostics.Perf_Activity_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Diagnostics.Perf_Activity_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Diagnostics.Perf_Activity.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Diagnostics.Perf_Activity*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-351d6de4-f45b-473a-af18-54c29ae3ce34efcd5b3001c42ff88/4ea103d5-3cda-4b88-a8b5-f8e3e28be539.zip?sv=2021-08-06&se=2024-02-16T19%3A50%3A54Z&sr=c&sp=rl&sig=eSK3U8BtdxSkcpc%2FnZh%2FSdspftwAl2zt4OhLGmWQTeY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fb97180f-5a70-4450-bc46-a64b3683de35ec7c03ed33f4d66a1/0996d59c-a394-477c-b9f1-4fe26de1e617.zip?sv=2021-08-06&se=2024-02-17T12%3A01%3A25Z&sr=c&sp=rl&sig=Oj4HaEoiBC4F5RQdUNORIdfBi8U9o1bpGXT4hcKOGFI%3D>)
### System.Diagnostics.Perf_Activity.EnumerateActivityTagsSmall

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Diagnostics.Perf_Activity.EnumerateActivityEventsSmall

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Diagnostics.Perf_Activity.EnumerateActivityLinksSmall

#### 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 | Windows 10.0.18362
Queue | TigerWindows
Baseline | [bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780](https://github.com/dotnet/runtime/commit/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780)
Compare | [77d643d8678d0cae1144557f106bb693a1cbca25](https://github.com/dotnet/runtime/commit/77d643d8678d0cae1144557f106bb693a1cbca25)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780...77d643d8678d0cae1144557f106bb693a1cbca25)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in MicroBenchmarks.Serializers.Xml_ToStream&lt;Location&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[DataContractSerializer_BinaryXml_ - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/MicroBenchmarks.Serializers.Xml_ToStream(Location).DataContractSerializer_BinaryXml_.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/Serializers/Xml_ToStream.cs#L57-#L65>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 877.59 ns | 1.03 μs | 1.17 | 0.02 | True | | |
|<ul><li>[DataContractSerializer_ - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/MicroBenchmarks.Serializers.Xml_ToStream(Location).DataContractSerializer_.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/Serializers/Xml_ToStream.cs#L49-#L55>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 1.41 μs | 1.63 μs | 1.15 | 0.01 | True | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/MicroBenchmarks.Serializers.Xml_ToStream%28Location%29_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/MicroBenchmarks.Serializers.Xml_ToStream%28Location%29_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/MicroBenchmarks.Serializers.Xml_ToStream%28Location%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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'MicroBenchmarks.Serializers.Xml_ToStream&lt;Location&gt;*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-351d6de4-f45b-473a-af18-54c29ae3ce34efcd5b3001c42ff88/4ea103d5-3cda-4b88-a8b5-f8e3e28be539.zip?sv=2021-08-06&se=2024-02-16T19%3A50%3A54Z&sr=c&sp=rl&sig=eSK3U8BtdxSkcpc%2FnZh%2FSdspftwAl2zt4OhLGmWQTeY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fb97180f-5a70-4450-bc46-a64b3683de35ec7c03ed33f4d66a1/0996d59c-a394-477c-b9f1-4fe26de1e617.zip?sv=2021-08-06&se=2024-02-17T12%3A01%3A25Z&sr=c&sp=rl&sig=Oj4HaEoiBC4F5RQdUNORIdfBi8U9o1bpGXT4hcKOGFI%3D>)
### MicroBenchmarks.Serializers.Xml_ToStream&lt;Location&gt;.DataContractSerializer_BinaryXml_

#### ETL Files

#### Histogram

#### JIT Disasms

### MicroBenchmarks.Serializers.Xml_ToStream&lt;Location&gt;.DataContractSerializer_

#### 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 | Windows 10.0.18362
Queue | TigerWindows
Baseline | [bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780](https://github.com/dotnet/runtime/commit/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780)
Compare | [77d643d8678d0cae1144557f106bb693a1cbca25](https://github.com/dotnet/runtime/commit/77d643d8678d0cae1144557f106bb693a1cbca25)
Diff | [Diff](https://github.com/dotnet/runtime/compare/bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780...77d643d8678d0cae1144557f106bb693a1cbca25)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Net.Http.Tests.SocketsHttpHandlerPerfTest

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[Get_EnumerateHeaders_Unvalidated - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Unvalidated(ssl%3a%20False%2c%20chunkedResponse%3a%20False%2c%20responseLength%3a%201).html>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 33.99 μs | 37.01 μs | 1.09 | 0.56 | False | | |
|<ul><li>[Get_EnumerateHeaders_Validated - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.18362/System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Validated(ssl%3a%20False%2c%20chunkedResponse%3a%20True%2c%20responseLength%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Net.Http/Perf.SocketsHttpHandler.cs#L109-#L126>)</li><li>[📈 - ADX Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 32.41 μs | 43.95 μs | 1.36 | 0.51 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Net.Http.Tests.SocketsHttpHandlerPerfTest_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Net.Http.Tests.SocketsHttpHandlerPerfTest_2.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_23_2024/refs/heads/main_x64_Windows%2010.0.18362_Regression/System.Net.Http.Tests.SocketsHttpHandlerPerfTest.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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Net.Http.Tests.SocketsHttpHandlerPerfTest*'
```

<details>


### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-351d6de4-f45b-473a-af18-54c29ae3ce34efcd5b3001c42ff88/4ea103d5-3cda-4b88-a8b5-f8e3e28be539.zip?sv=2021-08-06&se=2024-02-16T19%3A50%3A54Z&sr=c&sp=rl&sig=eSK3U8BtdxSkcpc%2FnZh%2FSdspftwAl2zt4OhLGmWQTeY%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-fb97180f-5a70-4450-bc46-a64b3683de35ec7c03ed33f4d66a1/0996d59c-a394-477c-b9f1-4fe26de1e617.zip?sv=2021-08-06&se=2024-02-17T12%3A01%3A25Z&sr=c&sp=rl&sig=Oj4HaEoiBC4F5RQdUNORIdfBi8U9o1bpGXT4hcKOGFI%3D>)
### System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Unvalidated(ssl: False, chunkedResponse: False, responseLength: 1)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Validated(ssl: False, chunkedResponse: True, responseLength: 1)

#### 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	Windows 10.0.18362
Queue	TigerWindows
Baseline	bdbdf3ee942f5bd1efdf4c3adc03b93723ff2780
Compare	77d643d8678d0cae1144557f106bb693a1cbca25
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
EnumerateActivityTagsSmall - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	34.27 ns	37.23 ns	1.09	0.09	False
EnumerateActivityEventsSmall - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	28.43 ns	30.43 ns	1.07	0.27	False
EnumerateActivityLinksSmall - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	28.02 ns	31.28 ns	1.12	0.26	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
DataContractSerializer_BinaryXml_ - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	877.59 ns	1.03 μs	1.17	0.02	True
DataContractSerializer_ - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	1.41 μs	1.63 μs	1.15	0.01	True

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Get_EnumerateHeaders_Unvalidated - Duration of single invocation 📈 - ADX Test Multi Config Graph	33.99 μs	37.01 μs	1.09	0.56	False
Get_EnumerateHeaders_Validated - Duration of single invocation 📝 - Benchmark Source 📈 - ADX Test Multi Config Graph	32.41 μs	43.95 μs	1.36	0.51	False

[Perf] Windows/x64: 8 Regressions on 1/18/2024 3:40:02 AM #27811

Description

Run Information

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Repro

Payloads

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total: 40000, unique: 1600, cacheSize: 15)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Diagnostics.Perf_Activity

Repro

Payloads

System.Diagnostics.Perf_Activity.EnumerateActivityTagsSmall

ETL Files

Histogram

JIT Disasms

System.Diagnostics.Perf_Activity.EnumerateActivityEventsSmall

ETL Files

Histogram

JIT Disasms

System.Diagnostics.Perf_Activity.EnumerateActivityLinksSmall

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in MicroBenchmarks.Serializers.Xml_ToStream<Location>

Repro

Payloads

MicroBenchmarks.Serializers.Xml_ToStream<Location>.DataContractSerializer_BinaryXml_

ETL Files

Histogram

JIT Disasms

MicroBenchmarks.Serializers.Xml_ToStream<Location>.DataContractSerializer_

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Net.Http.Tests.SocketsHttpHandlerPerfTest

Repro

Payloads

System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Unvalidated(ssl: False, chunkedResponse: False, responseLength: 1)

ETL Files

Histogram

JIT Disasms

System.Net.Http.Tests.SocketsHttpHandlerPerfTest.Get_EnumerateHeaders_Validated(ssl: False, chunkedResponse: True, responseLength: 1)

ETL Files

Histogram

JIT Disasms

Docs

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