[Perf] Changes at 4/27/2021 5:55:45 AM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[GenericClassWithIntGenericInstanceField - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/PerfLabTests.LowLevelPerf.GenericClassWithIntGenericInstanceField.html>) | 77.67 μs | 68.71 μs | 0.88 | 0.06 | | |
[SealedClassInterfaceMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod.html>) | 130.48 μs | 108.77 μs | 0.83 | 0.07 | | |
[GenericClassGenericStaticMethod - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod.html>) | 157.92 μs | 130.54 μs | 0.83 | 0.06 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/PerfLabTests.LowLevelPerf_1.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/PerfLabTests.LowLevelPerf_2.png>)
![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/PerfLabTests.LowLevelPerf_3.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/PerfLabTests.LowLevelPerf.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'PerfLabTests.LowLevelPerf*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### PerfLabTests.LowLevelPerf.GenericClassWithIntGenericInstanceField

```log

```
#### PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod

```log

```
#### PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

```log

```


### 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

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in System.Collections.IterateForEach&lt;String&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[LinkedList - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.IterateForEach(String).LinkedList(Size%3a%20512).html>) | 3.14 μs | 2.70 μs | 0.86 | 0.18 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.IterateForEach(String)_1.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.IterateForEach(String).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.Collections.IterateForEach&lt;String&gt;*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### System.Collections.IterateForEach&lt;String&gt;.LinkedList(Size: 512)

```log

```


### 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

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in SciMark2.kernel

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[benchmarkLU - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/SciMark2.kernel.benchmarkLU.html>) | 782.00 ms | 651.82 ms | 0.83 | 0.00 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/SciMark2.kernel_1.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/SciMark2.kernel.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'SciMark2.kernel*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### SciMark2.kernel.benchmarkLU

```log

```


### 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

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in System.Net.Primitives.Tests.IPAddressPerformanceTests

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[TryWriteBytes - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address%3a%201020%3a3040%3a5060%3a7080%3a9010%3a1112%3a1314%3a1516).html>) | 13.37 ns | 11.08 ns | 0.83 | 0.03 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Net.Primitives.Tests.IPAddressPerformanceTests_1.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Net.Primitives.Tests.IPAddressPerformanceTests.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.Net.Primitives.Tests.IPAddressPerformanceTests*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

```log

```


### 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

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in System.Globalization.Tests.StringSearch

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[IndexOf_Word_NotFound - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options%3a%20(en-US%2c%20OrdinalIgnoreCase%2c%20False)).html>) | 599.57 ns | 500.53 ns | 0.83 | 0.04 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Globalization.Tests.StringSearch_1.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Globalization.Tests.StringSearch.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.Globalization.Tests.StringSearch*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

```log

```


### 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

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [ac82799250fe42c8ba2941aef487aca94ecf04cc](https://github.com/dotnet/runtime/commit/ac82799250fe42c8ba2941aef487aca94ecf04cc)
Compare | [1c9e2009d9942a6df31daad8c912c68446856fa2](https://github.com/dotnet/runtime/commit/1c9e2009d9942a6df31daad8c912c68446856fa2)
Diff | [Diff](https://github.com/dotnet/runtime/compare/ac82799250fe42c8ba2941aef487aca94ecf04cc...1c9e2009d9942a6df31daad8c912c68446856fa2)


### Improvemnts in System.MathBenchmarks.Double

Benchmark | Baseline | Test | Test/Base | Test Quality | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ScaleB - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.MathBenchmarks.Double.ScaleB.html>) | 12.38 μs | 11.47 μs | 0.93 | 0.04 | | |

![graph](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.MathBenchmarks.Double_1.png>)
[Historical Data in Reporting System](<https://pvscmdupload.blob.core.windows.net/autofilereport/autofilereports/05_03_2021/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.MathBenchmarks.Double.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f netcoreapp5.0 --filter 'System.MathBenchmarks.Double*'
```
<details>

### Payloads

[Baseline](<>)
[Compare](<>)

### Histogram
#### System.MathBenchmarks.Double.ScaleB

```log

```


### 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>




Architecture	x64
OS	ubuntu 18.04
Baseline	ac82799250fe42c8ba2941aef487aca94ecf04cc
Compare	1c9e2009d9942a6df31daad8c912c68446856fa2
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality
GenericClassWithIntGenericInstanceField - Duration of single invocation	77.67 μs	68.71 μs	0.88	0.06
SealedClassInterfaceMethod - Duration of single invocation	130.48 μs	108.77 μs	0.83	0.07
GenericClassGenericStaticMethod - Duration of single invocation	157.92 μs	130.54 μs	0.83	0.06

[Perf] Changes at 4/27/2021 5:55:45 AM #5564

Description

Run Information

Improvemnts in PerfLabTests.LowLevelPerf

Repro

Payloads

Histogram

PerfLabTests.LowLevelPerf.GenericClassWithIntGenericInstanceField

PerfLabTests.LowLevelPerf.SealedClassInterfaceMethod

PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

Docs

Improvemnts in System.Collections.IterateForEach<String>

Repro

Payloads

Histogram

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

Docs

Run Information

Improvemnts in SciMark2.kernel

Repro

Payloads

Histogram

SciMark2.kernel.benchmarkLU

Docs

Run Information

Improvemnts in System.Net.Primitives.Tests.IPAddressPerformanceTests

Repro

Payloads

Histogram

System.Net.Primitives.Tests.IPAddressPerformanceTests.TryWriteBytes(address: 1020:3040:5060:7080:9010:1112:1314:1516)

Docs

Run Information

Improvemnts in System.Globalization.Tests.StringSearch

Repro

Payloads

Histogram

System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

Docs

Run Information

Improvemnts in System.MathBenchmarks.Double

Repro

Payloads

Histogram

System.MathBenchmarks.Double.ScaleB

Docs

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