[Perf] Linux/x64: 9 Improvements on 1/26/2025 3:08:25 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [a40f92ea4ed936117f7d490150b0195532a97493](https://github.com/dotnet/runtime/commit/a40f92ea4ed936117f7d490150b0195532a97493)
Compare | [f41b65f26753bfb061abf3841f11b2c12e173e5c](https://github.com/dotnet/runtime/commit/f41b65f26753bfb061abf3841f11b2c12e173e5c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a40f92ea4ed936117f7d490150b0195532a97493...f41b65f26753bfb061abf3841f11b2c12e173e5c)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[DeserializeFromReader - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Nullable(DateTimeOffset)).DeserializeFromReader(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L74-#L80>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 143.54 ns | 131.28 ns | 0.91 | 0.06 | False | | |
|<ul><li>[DeserializeFromUtf8Bytes - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Nullable(DateTimeOffset)).DeserializeFromUtf8Bytes(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.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> | 82.72 ns | 76.44 ns | 0.92 | 0.02 | False | | |
|<ul><li>[DeserializeFromString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Nullable(DateTimeOffset)).DeserializeFromString(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L66-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 104.65 ns | 90.46 ns | 0.86 | 0.07 | False | | |
|<ul><li>[DeserializeFromString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Nullable(DateTimeOffset)).DeserializeFromString(Mode%3a%20Reflection).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L66-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 96.76 ns | 90.74 ns | 0.94 | 0.04 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Nullable%28DateTimeOffset%29%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Nullable%28DateTimeOffset%29%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Nullable%28DateTimeOffset%29%29_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Nullable%28DateTimeOffset%29%29_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Nullable%28DateTimeOffset%29%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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;*'
```

<details>

### System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;.DeserializeFromReader(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;.DeserializeFromUtf8Bytes(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;.DeserializeFromString(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Nullable&lt;DateTimeOffset&gt;&gt;.DeserializeFromString(Mode: Reflection)

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [a40f92ea4ed936117f7d490150b0195532a97493](https://github.com/dotnet/runtime/commit/a40f92ea4ed936117f7d490150b0195532a97493)
Compare | [f41b65f26753bfb061abf3841f11b2c12e173e5c](https://github.com/dotnet/runtime/commit/f41b65f26753bfb061abf3841f11b2c12e173e5c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a40f92ea4ed936117f7d490150b0195532a97493...f41b65f26753bfb061abf3841f11b2c12e173e5c)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[DeserializeFromString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromString(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L66-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 62.97 ns | 58.38 ns | 0.93 | 0.11 | False | | |
|<ul><li>[DeserializeFromReader - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromReader(Mode%3a%20Reflection).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L74-#L80>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 111.21 ns | 96.03 ns | 0.86 | 0.06 | False | | |
|<ul><li>[DeserializeFromReader - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromReader(Mode%3a%20SourceGen).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L74-#L80>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 110.60 ns | 97.98 ns | 0.89 | 0.12 | False | | |
|<ul><li>[DeserializeFromString - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Serialization.Tests.ReadJson(Int32).DeserializeFromString(Mode%3a%20Reflection).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Serializer/ReadJson.cs#L66-#L68>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 62.21 ns | 58.18 ns | 0.94 | 0.02 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Int32%29_001.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Int32%29_002.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Int32%29_003.png>)
![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Int32%29_004.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Serialization.Tests.ReadJson%28Int32%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
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;*'
```

<details>

### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromString(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromReader(Mode: Reflection)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromReader(Mode: SourceGen)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Text.Json.Serialization.Tests.ReadJson&lt;Int32&gt;.DeserializeFromString(Mode: Reflection)

#### 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 | ubuntu 22.04
Queue | TigerUbuntu
Baseline | [a40f92ea4ed936117f7d490150b0195532a97493](https://github.com/dotnet/runtime/commit/a40f92ea4ed936117f7d490150b0195532a97493)
Compare | [f41b65f26753bfb061abf3841f11b2c12e173e5c](https://github.com/dotnet/runtime/commit/f41b65f26753bfb061abf3841f11b2c12e173e5c)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a40f92ea4ed936117f7d490150b0195532a97493...f41b65f26753bfb061abf3841f11b2c12e173e5c)
Configs | CompilationMode:tiered, RunKind:micro


### Improvements in System.Text.Json.Tests.Perf_Depth

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|<ul><li>[ReadSpanEmptyLoop - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Text.Json.Tests.Perf_Depth.ReadSpanEmptyLoop(Depth%3a%201).html>)</li><li>📝 - [Benchmark Source](<https://github.com/dotnet/performance/blob/main/src/benchmarks/micro/libraries/System.Text.Json/Utf8JsonReader/Perf.Depth.cs#L30-#L39>)</li><li>[ADX - Test Multi Config Graph](<https://dataexplorer.azure.com/clusters/dotnetperf.westus/databases/PerformanceData?query=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>)</li></ul> | 58.53 ns | 52.17 ns | 0.89 | 0.07 | False | | |

![graph](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Tests.Perf_Depth_001.png>)
[Test Report](<https://pvscmdupload.z22.web.core.windows.net/autofilereport/autofilereports/01_28_2025/refs/heads/main_x64_ubuntu%2022.04_Improvement/System.Text.Json.Tests.Perf_Depth.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.Json.Tests.Perf_Depth*'
```

<details>

### System.Text.Json.Tests.Perf_Depth.ReadSpanEmptyLoop(Depth: 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	ubuntu 22.04
Queue	TigerUbuntu
Baseline	a40f92ea4ed936117f7d490150b0195532a97493
Compare	f41b65f26753bfb061abf3841f11b2c12e173e5c
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
DeserializeFromReader - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	143.54 ns	131.28 ns	0.91	0.06	False
DeserializeFromUtf8Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	82.72 ns	76.44 ns	0.92	0.02	False
DeserializeFromString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	104.65 ns	90.46 ns	0.86	0.07	False
DeserializeFromString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	96.76 ns	90.74 ns	0.94	0.04	False

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
DeserializeFromString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	62.97 ns	58.38 ns	0.93	0.11	False
DeserializeFromReader - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	111.21 ns	96.03 ns	0.86	0.06	False
DeserializeFromReader - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	110.60 ns	97.98 ns	0.89	0.12	False
DeserializeFromString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	62.21 ns	58.18 ns	0.94	0.02	False

[Perf] Linux/x64: 9 Improvements on 1/26/2025 3:08:25 PM +00:00 #48892

Description

Run Information

Improvements in System.Text.Json.Serialization.Tests.ReadJson<Nullable<DateTimeOffset>>

Repro

System.Text.Json.Serialization.Tests.ReadJson<Nullable<DateTimeOffset>>.DeserializeFromReader(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Nullable<DateTimeOffset>>.DeserializeFromUtf8Bytes(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Nullable<DateTimeOffset>>.DeserializeFromString(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Nullable<DateTimeOffset>>.DeserializeFromString(Mode: Reflection)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.Text.Json.Serialization.Tests.ReadJson<Int32>

Repro

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromString(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromReader(Mode: Reflection)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromReader(Mode: SourceGen)

ETL Files

Histogram

JIT Disasms

System.Text.Json.Serialization.Tests.ReadJson<Int32>.DeserializeFromString(Mode: Reflection)

ETL Files

Histogram

JIT Disasms

Docs

Run Information

Improvements in System.Text.Json.Tests.Perf_Depth

Repro

System.Text.Json.Tests.Perf_Depth.ReadSpanEmptyLoop(Depth: 1)

ETL Files

Histogram

JIT Disasms

Docs

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