[Perf] Linux/x64: 5 Improvements on 12/28/2022 6:20:56 PM

### Run Information

Architecture | x64
-- | --
OS | ubuntu 18.04
Baseline | [8c58fc2347820ce48e09605d8adddb993df9ebb5](https://github.com/dotnet/runtime/commit/8c58fc2347820ce48e09605d8adddb993df9ebb5)
Compare | [1d15f2140f7eb30a976c66290491ec89cd628da0](https://github.com/dotnet/runtime/commit/1d15f2140f7eb30a976c66290491ec89cd628da0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/8c58fc2347820ce48e09605d8adddb993df9ebb5...1d15f2140f7eb30a976c66290491ec89cd628da0)


### Improvements in System.Numerics.Tests.Perf_Matrix4x4

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[CreateBillboardBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Numerics.Tests.Perf_Matrix4x4.CreateBillboardBenchmark.html>) | 17.35 ns | 14.95 ns | 0.86 | 0.05 | False | | |
[CreateConstrainedBillboardBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Numerics.Tests.Perf_Matrix4x4.CreateConstrainedBillboardBenchmark.html>) | 22.54 ns | 21.03 ns | 0.93 | 0.03 | False | | |
[CreateLookAtBenchmark - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Numerics.Tests.Perf_Matrix4x4.CreateLookAtBenchmark.html>) | 23.86 ns | 21.27 ns | 0.89 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Numerics.Tests.Perf_Matrix4x4_1.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Numerics.Tests.Perf_Matrix4x4_2.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Numerics.Tests.Perf_Matrix4x4_3.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Numerics.Tests.Perf_Matrix4x4.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_Matrix4x4*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-126f0349-fcee-4c08-9ec3-0fa0ac93e6ad2de6e327cc743ac9e/475669b2-9e21-4869-b433-87f27759218f.zip?sv=2021-08-06&se=2023-01-27T09%3A27%3A57Z&sr=c&sp=rl&sig=2qo%2B7zxSuMlCrfwejjxEieAbqtFqQQkTTAgzZqXG11Y%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1c03d5ae-6f17-4f44-9700-62cc50353ac251500437bae496c83/8dd81e6e-b6fb-4660-aa5b-6d1eaa9aa5ff.zip?sv=2021-08-06&se=2023-01-28T15%3A22%3A33Z&sr=c&sp=rl&sig=aAeP6dHQbtu5DuzO7pb8Yss%2BSA7gFzQLf1RzqLcY5MQ%3D>)
### Histogram

#### System.Numerics.Tests.Perf_Matrix4x4.CreateBillboardBenchmark

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 14.949935649858014 < 16.53165531925393.
IsChangePoint: Marked as a change because one of 12/28/2022 5:13:50 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 48.56187748338224 (T) = (0 -15.17351207429175) / Math.Sqrt((0.08356905932027467 / (299)) + (0.016326580865739154 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.10848596460596345 = (17.019936279057315 - 15.17351207429175) / 17.019936279057315 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_Matrix4x4.CreateConstrainedBillboardBenchmark

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 21.028890185157586 < 21.566710749759952.
IsChangePoint: Marked as a change because one of 10/31/2022 1:09:40 PM, 12/28/2022 5:13:50 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 34.3427353145053 (T) = (0 -21.06048486161879) / Math.Sqrt((0.1784762407458816 / (299)) + (0.02696755398750096 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.07570908096091228 = (22.785558559326443 - 21.06048486161879) / 22.785558559326443 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```#### System.Numerics.Tests.Perf_Matrix4x4.CreateLookAtBenchmark

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 21.265391138740927 < 22.742165856061746.
IsChangePoint: Marked as a change because one of 10/10/2022 3:36:43 PM, 12/28/2022 5:13:50 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 36.05286792903522 (T) = (0 -21.5773947106395) / Math.Sqrt((0.13816616229161455 / (299)) + (0.05185477059484998 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.09734680460824881 = (23.904412924916215 - 21.5773947106395) / 23.904412924916215 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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 | [8c58fc2347820ce48e09605d8adddb993df9ebb5](https://github.com/dotnet/runtime/commit/8c58fc2347820ce48e09605d8adddb993df9ebb5)
Compare | [1d15f2140f7eb30a976c66290491ec89cd628da0](https://github.com/dotnet/runtime/commit/1d15f2140f7eb30a976c66290491ec89cd628da0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/8c58fc2347820ce48e09605d8adddb993df9ebb5...1d15f2140f7eb30a976c66290491ec89cd628da0)


### Improvements in System.Text.Encodings.Web.Tests.Perf_Encoders

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20JavaScript%2c%26Hello%2b(World)!%2c16).html>) | 43.09 ns | 35.92 ns | 0.83 | 0.06 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Encodings.Web.Tests.Perf_Encoders_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Text.Encodings.Web.Tests.Perf_Encoders.html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Encodings.Web.Tests.Perf_Encoders*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-126f0349-fcee-4c08-9ec3-0fa0ac93e6ad2de6e327cc743ac9e/475669b2-9e21-4869-b433-87f27759218f.zip?sv=2021-08-06&se=2023-01-27T09%3A27%3A57Z&sr=c&sp=rl&sig=2qo%2B7zxSuMlCrfwejjxEieAbqtFqQQkTTAgzZqXG11Y%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1c03d5ae-6f17-4f44-9700-62cc50353ac251500437bae496c83/8dd81e6e-b6fb-4660-aa5b-6d1eaa9aa5ff.zip?sv=2021-08-06&se=2023-01-28T15%3A22%3A33Z&sr=c&sp=rl&sig=aAeP6dHQbtu5DuzO7pb8Yss%2BSA7gFzQLf1RzqLcY5MQ%3D>)
### Histogram

#### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+&lt;World&gt;!,16)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 35.92314244080981 < 40.78805184681181.
IsChangePoint: Marked as a change because one of 11/7/2022 10:11:20 AM, 11/10/2022 9:13:35 AM, 12/1/2022 7:29:59 PM, 12/7/2022 8:33:47 PM, 12/17/2022 10:44:50 PM, 12/21/2022 9:23:17 AM, 12/28/2022 5:13:50 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 35.43333133398268 (T) = (0 -35.92910143654136) / Math.Sqrt((8.154406749203927 / (299)) + (0.0015330160028067831 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.14029600095459205 = (41.79240933674388 - 35.92910143654136) / 41.79240933674388 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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 | [8c58fc2347820ce48e09605d8adddb993df9ebb5](https://github.com/dotnet/runtime/commit/8c58fc2347820ce48e09605d8adddb993df9ebb5)
Compare | [1d15f2140f7eb30a976c66290491ec89cd628da0](https://github.com/dotnet/runtime/commit/1d15f2140f7eb30a976c66290491ec89cd628da0)
Diff | [Diff](https://github.com/dotnet/runtime/compare/8c58fc2347820ce48e09605d8adddb993df9ebb5...1d15f2140f7eb30a976c66290491ec89cd628da0)


### Improvements in System.Collections.IterateFor&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
[ImmutableList - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 18.04/System.Collections.IterateFor(Int32).ImmutableList(Size%3a%20512).html>) | 12.04 μs | 11.13 μs | 0.93 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.IterateFor(Int32)_1.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_03_2023/refs/heads/main_x64_ubuntu%2018.04_Improvement/System.Collections.IterateFor(Int32).html>)

### Repro

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.IterateFor&lt;Int32&gt;*'
```
<details>

### Payloads

[Baseline](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-126f0349-fcee-4c08-9ec3-0fa0ac93e6ad2de6e327cc743ac9e/475669b2-9e21-4869-b433-87f27759218f.zip?sv=2021-08-06&se=2023-01-27T09%3A27%3A57Z&sr=c&sp=rl&sig=2qo%2B7zxSuMlCrfwejjxEieAbqtFqQQkTTAgzZqXG11Y%3D>)
[Compare](<https://helixdi107v0xdeko0k025g8.blob.core.windows.net/helix-job-1c03d5ae-6f17-4f44-9700-62cc50353ac251500437bae496c83/8dd81e6e-b6fb-4660-aa5b-6d1eaa9aa5ff.zip?sv=2021-08-06&se=2023-01-28T15%3A22%3A33Z&sr=c&sp=rl&sig=aAeP6dHQbtu5DuzO7pb8Yss%2BSA7gFzQLf1RzqLcY5MQ%3D>)
### Histogram

#### System.Collections.IterateFor&lt;Int32&gt;.ImmutableList(Size: 512)

```log

```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 11.134748633274231 < 11.313731682449374.
IsChangePoint: Marked as a change because one of 11/3/2022 3:03:31 PM, 11/7/2022 4:10:19 PM, 11/18/2022 7:31:41 AM, 11/18/2022 8:48:12 PM, 12/1/2022 7:29:59 PM, 12/6/2022 2:12:43 AM, 12/28/2022 5:13:50 PM, 1/3/2023 6:29:42 AM falls between 12/23/2022 9:40:21 PM and 1/3/2023 6:29:42 AM.
IsImprovementStdDev: Marked as improvement because 27.368660755867264 (T) = (0 -11143.890740674022) / Math.Sqrt((146307.08177978286 / (299)) + (913.1473280075089 / (14))) is greater than 1.9676211333067681 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (14) - 2, .975) and 0.054672370043298064 = (11788.38995871139 - 11143.890740674022) / 11788.38995871139 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.

```

### 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: 5 Improvements on 12/28/2022 6:20:56 PM #11278

performanceautofiler
openedon Jan 3, 2023

Run Information

Improvements in System.Numerics.Tests.Perf_Matrix4x4

Repro

Payloads

Histogram

System.Numerics.Tests.Perf_Matrix4x4.CreateBillboardBenchmark

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Text.Encodings.Web.Tests.Perf_Encoders

Repro

Payloads

Histogram

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+<World>!,16)

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateFor<Int32>

Repro

Payloads

Histogram

System.Collections.IterateFor<Int32>.ImmutableList(Size: 512)

Description of detection logic

Docs

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Architecture	x64
OS	ubuntu 18.04
Baseline	8c58fc2347820ce48e09605d8adddb993df9ebb5
Compare	1d15f2140f7eb30a976c66290491ec89cd628da0
Diff	Diff

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
CreateBillboardBenchmark - Duration of single invocation	17.35 ns	14.95 ns	0.86	0.05	False
CreateConstrainedBillboardBenchmark - Duration of single invocation	22.54 ns	21.03 ns	0.93	0.03	False
CreateLookAtBenchmark - Duration of single invocation	23.86 ns	21.27 ns	0.89	0.03	False

[Perf] Linux/x64: 5 Improvements on 12/28/2022 6:20:56 PM #11278

Description

performanceautofileropenedon Jan 3, 2023

Run Information

Improvements in System.Numerics.Tests.Perf_Matrix4x4

Repro

Payloads

Histogram

System.Numerics.Tests.Perf_Matrix4x4.CreateBillboardBenchmark

Description of detection logic

Description of detection logic

Description of detection logic

Docs

Improvements in System.Text.Encodings.Web.Tests.Perf_Encoders

Repro

Payloads

Histogram

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+<World>!,16)

Description of detection logic

Docs

Run Information

Improvements in System.Collections.IterateFor<Int32>

Repro

Payloads

Histogram

System.Collections.IterateFor<Int32>.ImmutableList(Size: 512)

Description of detection logic

Docs

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

performanceautofiler
openedon Jan 3, 2023