[Perf] Linux/x64: 6 Regressions on 11/1/2024 7:42:33 PM

[performanceautofiler[bot]]

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	357b09da5abffaeb67d64c928e15293ca2a2de5e
Compare	a9ca41321284c0d1e423bfc240e9c9f8be970b8b
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_String

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[ToLowerInvariant - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Tests.Perf_String.ToLowerInvariant(s%3a%20%22test%22).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	2.68 ns	5.11 ns	1.91	0.10	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_String*'

### System.Tests.Perf_String.ToLowerInvariant(s: "test") #### 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)

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	357b09da5abffaeb67d64c928e15293ca2a2de5e
Compare	a9ca41321284c0d1e423bfc240e9c9f8be970b8b
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Perf_DefaultFrozenDictionary

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[TryGetValue_True_FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_True_FrozenDictionary(Count%3a%20100).html>) ADX - Test Multi Config Graph	964.24 ns	1.01 μs	1.05	0.00	False
[TryGetValue_True_FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_True_FrozenDictionary(Count%3a%2010000).html>) ADX - Test Multi Config Graph	229.16 μs	248.92 μs	1.09	0.00	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Perf_DefaultFrozenDictionary*'

### System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_True_FrozenDictionary(Count: 100) #### ETL Files #### Histogram #### JIT Disasms ### System.Collections.Perf_DefaultFrozenDictionary.TryGetValue_True_FrozenDictionary(Count: 10000) #### 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)

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	357b09da5abffaeb67d64c928e15293ca2a2de5e
Compare	a9ca41321284c0d1e423bfc240e9c9f8be970b8b
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsKeyTrue<String, String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[FrozenDictionary - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.ContainsKeyTrue(String%2c%20String).FrozenDictionary(Size%3a%20512).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	5.35 μs	5.87 μs	1.10	0.03	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyTrue<String, String>*'

### System.Collections.ContainsKeyTrue<String, String>.FrozenDictionary(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)

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	357b09da5abffaeb67d64c928e15293ca2a2de5e
Compare	a9ca41321284c0d1e423bfc240e9c9f8be970b8b
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.TryGetValueTrue<String, String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[FrozenDictionaryOptimized - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Collections.TryGetValueTrue(String%2c%20String).FrozenDictionaryOptimized(Size%3a%20512).html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	5.29 μs	5.63 μs	1.06	0.04	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueTrue<String, String>*'

### System.Collections.TryGetValueTrue<String, String>.FrozenDictionaryOptimized(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)

---

Run Information

Name	Value
Architecture	x64
OS	ubuntu 22.04
Queue	TigerUbuntu
Baseline	357b09da5abffaeb67d64c928e15293ca2a2de5e
Compare	a9ca41321284c0d1e423bfc240e9c9f8be970b8b
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Tests.ReadOnlySequenceTests<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
[IterateGetPositionTenSegments - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x64_ubuntu 22.04/System.Buffers.Tests.ReadOnlySequenceTests(Char).IterateGetPositionTenSegments.html>) 📝 - Benchmark Source ADX - Test Multi Config Graph	41.32 ns	43.52 ns	1.05	0.16	False

Test Report

Repro

General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Tests.ReadOnlySequenceTests<Char>*'

### System.Buffers.Tests.ReadOnlySequenceTests<Char>.IterateGetPositionTenSegments #### 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)

[LoopedBard3]

Likely caused by: https://github.com/dotnet/runtime/pull/109394. Diff range: https://github.com/dotnet/runtime/compare/a67a869fa741033c477f6d1fe8f5050f9414fa25...275ea587d87e9eacc36dfd719e85155a1e7014b6.

Related Regressions: Windows x64: https://github.com/dotnet/perf-autofiling-issues/issues/44341 Linux x64: https://github.com/dotnet/perf-autofiling-issues/issues/44265

[LoopedBard3]

FYI: @AndyAyersMS

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