[Perf] Linux/x64: 9 Regressions on 3/16/2026 11:49:53 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [2c7ee1937a8bd2f17a8f54d3b54bcaa0956f37f2](https://github.com/dotnet/runtime/commit/2c7ee1937a8bd2f17a8f54d3b54bcaa0956f37f2)
Compare | [fc529276b042443bd335adc6b5a26526e7ac9905](https://github.com/dotnet/runtime/commit/fc529276b042443bd335adc6b5a26526e7ac9905)
Diff | [Diff](https://github.com/dotnet/runtime/compare/2c7ee1937a8bd2f17a8f54d3b54bcaa0956f37f2...fc529276b042443bd335adc6b5a26526e7ac9905)
Configs | CompilationMode:wasm, RunKind:micro


### Regressions in System.Text.Encodings.Web.Tests.Perf_Encoders

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20Url%2c%26lorem%20ipsum%3ddolor%20sit%20amet%2c16).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 604.45 ns | 773.91 ns | 1.28 | 0.06 | False | | |
|<ul><li>[EncodeUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments%3a%20JavaScript%2c%26Hello%2b(World)!%2c16).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L33-#L35>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 451.04 ns | 508.09 ns | 1.13 | 0.07 | False | | |
|<ul><li>[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20JavaScript%2c%26Hello%2b(World)!%2c512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 706.97 ns | 931.56 ns | 1.32 | 0.07 | False | | |
|<ul><li>[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20JavaScript%2c%26Hello%2b(World)!%2c16).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1SwW4aMRC9I/EPEw71omzYhaaI0Lpqm6JGqSJVgZZj5ezOgiuvjcazAdT032PvwqWXsTx+8+bNGxtkYPQMEj6J5dEz1qMVHni0sIUrtd340RqfQsqzH/1Aqn63D0i+Q+BPrmaJok1To2U/h3v1rJYF6R2nb+7QGHf5Ye3IlB8v0vF0KN73eya0VBUjhZ6lYmRdYzLJJ9OrfHw1vlnls/l4On/7bjSb3Uyur/PLPJ/n+fBUSbhzoVCUji1yRo2N9WfeJ1K22MZ3wspnW1Slz2ql7RlQOFvpTex8tKrWRfJX3Lp6p41i7exDGEjMQeyVr0UK4rGx37UtYypgyYl/UcY35Dvt2ZEulPmqWK01byOLIu2d9Uk0VMaQdoPKNqatdhlDehIquyM9yZLdMez3XmBH7g8WDEskjT6FL4025SqMumRV71L4pUyDMu7l1gUPkB7RN4Y/PyOpDfZ7WfYC+y0SnhjgIpBzcMLDYMBucShMU+JgAFkGi0OgNAiugkqbwBX2Dq4JawLfFkdBhDasHaLbxVYRwz5MDUkHkGeZh8KZprbyf7nHLu9lqzvgWLNBKYJ9GJw+nq4PqHxDGP+SGL4CfLyUp5wCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 479.03 ns | 582.50 ns | 1.22 | 0.06 | False | | |
|<ul><li>[EncodeUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments%3a%20JavaScript%2c%26Hello%2b(World)!%2c512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L33-#L35>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1SwW4aMRC9I/EPEw41KBt2FwVoaF21TVCjVpGqQMuxcnZnwZXXRuPZAGry77FZuPQylsdv3rx5Y4MMjJ5BwmexOHjGerjEPQ/ntnCltms/XOFTSHn2w59I1Z/jA5JvEfiLq3zSV7RuarTsZ/BdPatFQXrLybt7NMZdflw5MuWni2ScjwbiQ7djQlNVMVLoWipG1jX2R9locpXlV/nNMns/yyez6/HwZjqdXo+nl1k2y7LBqZJw60KhKB1b5JQaG+vPvE+kbLGJ74SVTzeoSp/WStszoHC20uvY+WBVrYv+P3Hr6q02irWzD2EkMQOxU74WCYjHxv7QtoypgCUnXqOMb8j32rMjXShzp1itNG8iiyLtnfX9aKmMIWkHlceYHLXLGJKTUNkeyUmWbI9Bt/MCW3J/sWBYIGn0CXxttCmXYdQFq3qbwG9lGpRxM7cueID0iL4x/OUZSa2x20nTF9htkPDEABeBnIMTHno9dvN9YZoSez1IU5jvA6VBcBVU2gSusHlwTVgT+GNxFERow+Ihul1sFDHswtTQbwHyLHNfONPUVv4v99DmvTzqDjjWbFCKYB8Gpw+n6wMq3xDGzyQGb68ZYkieAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 736.58 ns | 800.96 ns | 1.09 | 0.07 | False | | |
|<ul><li>[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20Url%2c%26lorem%20ipsum%3ddolor%20sit%20amet%2c512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 817.09 ns | 1.03 μs | 1.26 | 0.06 | False | | |
|<ul><li>[EncodeUtf8 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments%3a%20UnsafeRelaxed%2chello%20%22there%22%2c512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L28-#L31>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 614.91 ns | 710.97 ns | 1.16 | 0.08 | False | | |
|<ul><li>[EncodeUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments%3a%20Url%2c%26lorem%20ipsum%3ddolor%20sit%20amet%2c512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L33-#L35>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 779.15 ns | 911.33 ns | 1.17 | 0.03 | False | | |
|<ul><li>[EncodeUtf16 - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04_CompilationMode=wasm_RunKind=micro/ViperUbuntu/System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments%3a%20Url%2c%26lorem%20ipsum%3ddolor%20sit%20amet%2c16).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encodings.Web/Perf.Encoders.cs#L33-#L35>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 585.91 ns | 621.41 ns | 1.06 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_005.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_006.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_007.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_008.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders_009.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/03_19_2026/refs/heads/main_x64_ubuntu%2022.04_CompilationMode%3Dwasm_RunKind%3Dmicro/ViperUbuntu_Regression/System.Text.Encodings.Web.Tests.Perf_Encoders.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.Encodings.Web.Tests.Perf_Encoders*'
```

<details>

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,16)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+&lt;World&gt;!,16)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+&lt;World&gt;!,512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+&lt;World&gt;!,16)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+&lt;World&gt;!,512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: UnsafeRelaxed,hello "there",512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,512)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,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>

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	ViperUbuntu
Baseline	2c7ee1937a8bd2f17a8f54d3b54bcaa0956f37f2
Compare	fc529276b042443bd335adc6b5a26526e7ac9905
Diff	Diff
Configs	CompilationMode:wasm, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	604.45 ns	773.91 ns	1.28	0.06	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	451.04 ns	508.09 ns	1.13	0.07	False
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	706.97 ns	931.56 ns	1.32	0.07	False
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	479.03 ns	582.50 ns	1.22	0.06	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	736.58 ns	800.96 ns	1.09	0.07	False
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	817.09 ns	1.03 μs	1.26	0.06	False
EncodeUtf8 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	614.91 ns	710.97 ns	1.16	0.08	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	779.15 ns	911.33 ns	1.17	0.03	False
EncodeUtf16 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	585.91 ns	621.41 ns	1.06	0.07	False

[Perf] Linux/x64: 9 Regressions on 3/16/2026 11:49:53 PM +00:00 #70301

Description

Run Information

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

Repro

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,16)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+<World>!,16)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: JavaScript,&Hello+<World>!,512)

ETL Files

Histogram

JIT Disasms

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

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: JavaScript,&Hello+<World>!,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: Url,&lorem ipsum=dolor sit amet,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf8(arguments: UnsafeRelaxed,hello "there",512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,512)

ETL Files

Histogram

JIT Disasms

System.Text.Encodings.Web.Tests.Perf_Encoders.EncodeUtf16(arguments: Url,&lorem ipsum=dolor sit amet,16)

ETL Files

Histogram

JIT Disasms

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