[Perf] Windows/x64: 15 Regressions on 5/2/2025 11:56:41 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.CastingPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[IntObj - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.IntObj.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L254-#L259>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 266.95 μs | 340.52 μs | 1.28 | 0.06 | False | | |
|<ul><li>[IFooObjIsIFooInterAlia - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.IFooObjIsIFooInterAlia.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L227-#L232>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 268.25 μs | 341.05 μs | 1.27 | 0.05 | False | | |
|<ul><li>[ObjObjIsFoo - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.ObjObjIsFoo.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L163-#L168>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 270.88 μs | 341.77 μs | 1.26 | 0.06 | False | | |
|<ul><li>[FooObjIsFoo - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.FooObjIsFoo.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L173-#L178>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 266.82 μs | 340.93 μs | 1.28 | 0.04 | False | | |
|<ul><li>[IFooObjIsIFoo - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.IFooObjIsIFoo.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L217-#L222>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 270.24 μs | 340.93 μs | 1.26 | 0.04 | False | | |
|<ul><li>[IFooObjIsDescendantOfIFoo - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.IFooObjIsDescendantOfIFoo.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L237-#L242>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RwW7bMAy9B8g/cLkowdzYadYhyCBgW9ptxVZ0aIPtzNh0okKWAoluE6z791Gxc9mFBJ/Ip8dHSwxMkUHDR/WTQv0DN2up43SFkY3bJmx6+8X7+83TbbymWJKr0PF9nUD1YTiwQoE1UxCOCpnYNDS+LC6vLor5RfF+XSyWs/lyvpi+my+uFrPZ26JYFsWknwy09zKoKs+OOA+tS/Nn3k1AV+7Se6A65jvCKuYNGnduKL2rzTb9fHTYmHL8R618szcW2Xh35ytSS1BsKFClMlAPrftuXJVA6Q5e/U1CvhJ/M5F9MCXaa2T8bXiXeDCY6F0cJ4t0Clm3qj7F7KRep5D1UnWXsl6Y7tJkOHiFffBPVDI8UjAUM/jcGlutZdlHxmafwS+0Lelk/sqLCxQeKLaWPz1TwC0NB3n+Ci87WaRngDdCzuJFhNGI/c2htG1FoxHkOdwchNIS+BpqY4VLLgm+lUNBPA0nQUEuKVdLfpc7DAwvsjWMuwZ9lnkovW0bp/+Xe+zwqE+6pY8NW9JK7CNx+tiXd4SxDdSQYzX5B/bmsRFuAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 268.75 μs | 341.08 μs | 1.27 | 0.05 | False | | |
|<ul><li>[FooObjIsDescendant - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.CastingPerf.FooObjIsDescendant.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/CastingPerf.cs#L200-#L205>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 272.03 μs | 340.91 μs | 1.25 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_004.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_005.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_006.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf_007.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.CastingPerf.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 'PerfLabTests.CastingPerf*'
```

<details>

### PerfLabTests.CastingPerf.IntObj

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.IFooObjIsIFooInterAlia

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.ObjObjIsFoo

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.FooObjIsFoo

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.IFooObjIsIFoo

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.IFooObjIsDescendantOfIFoo

#### ETL Files

#### Histogram

#### JIT Disasms

### PerfLabTests.CastingPerf.FooObjIsDescendant

#### 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 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Perf_Utf8Encoding

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20Chinese).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Utf8Encoding.cs#L26-#L28>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 11.47 μs | 15.18 μs | 1.32 | 0.34 | False | | |
|<ul><li>[GetByteCount - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Utf8Encoding.GetByteCount(Input%3a%20Cyrillic).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Utf8Encoding.cs#L26-#L28>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 10.09 μs | 12.95 μs | 1.28 | 0.38 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Utf8Encoding_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Utf8Encoding_002.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Utf8Encoding.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.Perf_Utf8Encoding*'
```

<details>

### System.Text.Perf_Utf8Encoding.GetByteCount(Input: Chinese)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Utf8Encoding.GetByteCount(Input: Cyrillic)

#### 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 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Perf_Ascii

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[EqualsIgnoreCase_DifferentCase_Chars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L70-#L72>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 28.31 ns | 31.78 ns | 1.12 | 0.04 | False | | |
|<ul><li>[EqualsIgnoreCase_ExactlyTheSame_Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L55-#L56>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=H4sIAAAAAAAACl1RwY7TMBC9V+o/DL04Fdkm20JZgiyxWypAaCW0ieBYmWTSGDl2sCe7DSz/jt2kFy4z8vjNmzdvFBIQOgIO71k+OMJ2VeCJVl/R1odbV0q52v/qhXKfj9pY3AmHh/1JlKSGosFctHi4GzxDlMvfmMH1+mbJ3s1nyvOKmtB64koQkmwxWqfr11fp5irdFulNdv0q26xXb9Nt+mazfZmmWZoup06LnfGNrDKkkRLb69B/4f1hhS6b8G+xdkmDonJJK6S+AEqja3kMkwctWllGf9jOtJ1UgqTR96ZClgEjiRYrFgN76PUXqatQ9Ghr2N8g5CPSJ+nIWFkK9UGQ+C6pCTzCSme0i4JvPIR4XJWfY3xWz0OIJ6l8TPEkjI9pOZ89Q2fNTywJcrQSXQx3vVRV4ZfNSbRdDN+E6pEXfsjOeBfQPqDrFd0+ohVHnM+S5BmeGr/IxAAvPDl5LxwsFmT2p1L1FS4WkCTgz9Z2CsHUUEvluaQ+gun9ocCdm4Mgi7ryVwt+l42wBE9+a4hGAL/IPJVG9a3m/8sdxrrjZ90eR5IUcubtQ+/0MD3vUbjeYoua2PIfbOk9WYMCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=>)</li></ul> | 6.83 ns | 8.57 ns | 1.26 | 0.20 | False | | |
|<ul><li>[EqualsIgnoreCase_ExactlyTheSame_Bytes_Chars - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes_Chars(Size%3a%20128).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Ascii.cs#L62-#L64>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 16.58 ns | 19.51 ns | 1.18 | 0.03 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Ascii_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Ascii_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Ascii_003.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Perf_Ascii.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.Perf_Ascii*'
```

<details>

### System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes(Size: 128)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes_Chars(Size: 128)

#### 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 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Text.Json.Tests.Perf_Reader

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadReturnBytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Text.Json.Tests.Perf_Reader.ReadReturnBytes(IsDataCompact%3a%20True%2c%20TestCase%3a%20LotsOfStrings).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonReader/Perf.Reader.cs#L95-#L147>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 984.00 ns | 1.04 μs | 1.06 | 0.13 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Reader_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Text.Json.Tests.Perf_Reader.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.Json.Tests.Perf_Reader*'
```

<details>

### System.Text.Json.Tests.Perf_Reader.ReadReturnBytes(IsDataCompact: True, TestCase: LotsOfStrings)

#### 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 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in PerfLabTests.LowLevelPerf

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[InterfaceInterfaceMethod - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/PerfLabTests.LowLevelPerf.InterfaceInterfaceMethod.html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/runtime/perflab/LowLevelPerf.cs#L96-#L114>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 3.28 ms | 3.59 ms | 1.10 | 0.01 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.LowLevelPerf_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/PerfLabTests.LowLevelPerf.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 'PerfLabTests.LowLevelPerf*'
```

<details>

### PerfLabTests.LowLevelPerf.InterfaceInterfaceMethod

#### 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 10.0.22621
Queue | TigerWindows
Baseline | [cb3f507bacf3d941c44458613dc4129ef5508265](https://github.com/dotnet/runtime/commit/cb3f507bacf3d941c44458613dc4129ef5508265)
Compare | [4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8](https://github.com/dotnet/runtime/commit/4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Diff | [Diff](https://github.com/dotnet/runtime/compare/cb3f507bacf3d941c44458613dc4129ef5508265...4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8)
Configs | CompilationMode:tiered, RunKind:micro


### Regressions in System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ConcurrentDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_Windows 10.0.22621/System.Collections.ContainsKeyTrue(Int32%2c%20Int32).ConcurrentDictionary(Size%3a%20512).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Collections/Contains/ContainsKeyTrue.cs#L97-#L106>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 2.38 μs | 2.66 μs | 1.12 | 0.17 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Collections.ContainsKeyTrue%28Int32%2C%20Int32%29_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/05_06_2025/refs/heads/main_x64_Windows%2010.0.22621_Regression/System.Collections.ContainsKeyTrue%28Int32%2C%20Int32%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 'System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;*'
```

<details>

### System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;.ConcurrentDictionary(Size: 512)

#### 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 10.0.22621
Queue	TigerWindows
Baseline	cb3f507bacf3d941c44458613dc4129ef5508265
Compare	4352c7a1d4a71d63cf80cfd8f7c19036bcf131a8
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IntObj - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	266.95 μs	340.52 μs	1.28	0.06	False
IFooObjIsIFooInterAlia - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	268.25 μs	341.05 μs	1.27	0.05	False
ObjObjIsFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	270.88 μs	341.77 μs	1.26	0.06	False
FooObjIsFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	266.82 μs	340.93 μs	1.28	0.04	False
IFooObjIsIFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	270.24 μs	340.93 μs	1.26	0.04	False
IFooObjIsDescendantOfIFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	268.75 μs	341.08 μs	1.27	0.05	False
FooObjIsDescendant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	272.03 μs	340.91 μs	1.25	0.07	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
GetByteCount - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.47 μs	15.18 μs	1.32	0.34	False
GetByteCount - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.09 μs	12.95 μs	1.28	0.38	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
EqualsIgnoreCase_DifferentCase_Chars - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	28.31 ns	31.78 ns	1.12	0.04	False
EqualsIgnoreCase_ExactlyTheSame_Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.83 ns	8.57 ns	1.26	0.20	False
EqualsIgnoreCase_ExactlyTheSame_Bytes_Chars - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.58 ns	19.51 ns	1.18	0.03	False

Uh oh!

[Perf] Windows/x64: 15 Regressions on 5/2/2025 11:56:41 PM +00:00 #115340

Description

Run Information

Regressions in PerfLabTests.CastingPerf

Repro

PerfLabTests.CastingPerf.IntObj

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.IFooObjIsIFooInterAlia

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.ObjObjIsFoo

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.FooObjIsFoo

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.IFooObjIsIFoo

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.IFooObjIsDescendantOfIFoo

ETL Files

Histogram

JIT Disasms

PerfLabTests.CastingPerf.FooObjIsDescendant

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Perf_Utf8Encoding

Repro

System.Text.Perf_Utf8Encoding.GetByteCount(Input: Chinese)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Utf8Encoding.GetByteCount(Input: Cyrillic)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Perf_Ascii

Repro

System.Text.Perf_Ascii.EqualsIgnoreCase_DifferentCase_Chars(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes(Size: 128)

ETL Files

Histogram

JIT Disasms

System.Text.Perf_Ascii.EqualsIgnoreCase_ExactlyTheSame_Bytes_Chars(Size: 128)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in System.Text.Json.Tests.Perf_Reader

Repro

System.Text.Json.Tests.Perf_Reader.ReadReturnBytes(IsDataCompact: True, TestCase: LotsOfStrings)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Regressions in PerfLabTests.LowLevelPerf

Repro

PerfLabTests.LowLevelPerf.InterfaceInterfaceMethod

ETL Files

Histogram

JIT Disasms

Docs

Run Information