[Perf] Windows/x64: 88 Regressions on 6/17/2024 6:09:36 PM #36986

performanceautofiler · 2024-06-25T09:11:47Z

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

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

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ImmutableDictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	34.70 μs	39.43 μs	1.14	0.15	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyFalse&lt;String, String&gt;*'

System.Collections.ContainsKeyFalse<String, String>.ImmutableDictionary(Size: 512)

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_UInt32

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	14.97 ns	20.66 ns	1.38	0.06	False
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.73 ns	12.72 ns	1.19	0.06	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.58 ns	12.65 ns	1.20	0.08	False
TryParse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.04 ns	20.73 ns	1.29	0.07	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.42 ns	8.53 ns	1.15	0.09	False
TryFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.87 ns	8.64 ns	1.26	0.03	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.44 ns	21.20 ns	1.37	0.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_UInt32*'

System.Tests.Perf_UInt32.Parse(value: "4294967295")

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_UInt32.Parse(value: "12345")

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Histogram

JIT Disasms

System.Tests.Perf_UInt32.ParseSpan(value: "12345")

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Histogram

JIT Disasms

System.Tests.Perf_UInt32.TryParse(value: "4294967295")

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_UInt32.ParseSpan(value: "0")

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Histogram

JIT Disasms

System.Tests.Perf_UInt32.TryFormat(value: 4294967295)

ETL Files

Histogram

JIT Disasms

System.Tests.Perf_UInt32.ParseSpan(value: "4294967295")

ETL Files

Histogram

JIT Disasms

Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

performanceautofiler · 2024-06-25T09:11:48Z

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Numerics.Tests.Perf_BigInteger

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToByteArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.18 μs	5.61 μs	1.34	0.01	False
ToByteArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.17 μs	5.62 μs	1.35	0.01	False
Remainder - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.35 ms	6.51 ms	1.22	0.18	False
Remainder - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	592.55 ns	717.05 ns	1.21	0.12	False
Multiply - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	566.46 ns	633.90 ns	1.12	0.03	False
Divide - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	601.18 ns	826.62 ns	1.37	0.07	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Numerics.Tests.Perf_BigInteger*'

System.Numerics.Tests.Perf_BigInteger.ToByteArray(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890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)

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Histogram

JIT Disasms

System.Numerics.Tests.Perf_BigInteger.ToByteArray(numberString: 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890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)

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System.Numerics.Tests.Perf_BigInteger.Remainder(arguments: 65536,32768 bits)

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System.Numerics.Tests.Perf_BigInteger.Remainder(arguments: 1024,512 bits)

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System.Numerics.Tests.Perf_BigInteger.Multiply(arguments: 1024,512 bits)

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System.Numerics.Tests.Perf_BigInteger.Divide(arguments: 1024,512 bits)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Tests.Perf_StringBuilder

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Append_Char_Capacity - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	211.56 μs	313.10 μs	1.48	0.00	True
Append_Char_Capacity - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	174.35 ns	276.58 ns	1.59	0.09	True

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Tests.Perf_StringBuilder*'

System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100000)

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System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Random

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ctor_seeded - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	369.91 ns	449.72 ns	1.22	0.06	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Random*'

System.Tests.Perf_Random.ctor_seeded

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

performanceautofiler · 2024-06-25T09:11:49Z

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Enum

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
InterpolateIntoSpan_NonFlags - Duration of single invocation ADX - Test Multi Config Graph	104.45 ns	111.45 ns	1.07	0.02	False
ToString_Format_Flags_Large - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	22.31 ns	24.13 ns	1.08	0.09	False
InterpolateIntoSpan_Flags - Duration of single invocation ADX - Test Multi Config Graph	93.33 ns	104.71 ns	1.12	0.02	False
ToString_Flags - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	22.47 ns	26.44 ns	1.18	0.06	False
TryParseGeneric_Flags - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	108.80 ns	119.86 ns	1.10	0.11	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Enum*'

System.Tests.Perf_Enum.InterpolateIntoSpan_NonFlags(value: 42)

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System.Tests.Perf_Enum.ToString_Format_Flags_Large(value: All, format: "d")

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System.Tests.Perf_Enum.InterpolateIntoSpan_Flags(value: 32)

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System.Tests.Perf_Enum.ToString_Flags(value: 36)

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System.Tests.Perf_Enum.TryParseGeneric_Flags(text: "Red, Orange, Yellow, Green, Blue")

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	308.77 ns	332.05 ns	1.08	0.06	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	98.33 ns	106.95 ns	1.09	0.09	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	147.50 ns	162.13 ns	1.10	0.10	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	300.59 ns	326.21 ns	1.09	0.04	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	92.63 ns	99.88 ns	1.08	0.01	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	347.46 ns	382.70 ns	1.10	0.08	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	114.25 ns	125.13 ns	1.10	0.04	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	90.64 ns	97.53 ns	1.08	0.07	False
IsMatch - Duration of single invocation ADX - Test Multi Config Graph	94.45 ns	99.64 ns	1.05	0.07	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple*'

System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 5, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 6, Options: NonBacktracking)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 1, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 4, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 11, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 3, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 6, Options: None)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 7, Options: NonBacktracking)

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System.Text.RegularExpressions.Tests.Perf_Regex_Industry_BoostDocs_Simple.IsMatch(Id: 8, Options: NonBacktracking)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Dequeue_And_Enqueue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	231.83 ns	257.66 ns	1.11	0.15	False
HeapSort - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	63.50 μs	79.46 μs	1.25	0.02	False
Dequeue_And_Enqueue - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	149.45 μs	175.72 μs	1.18	0.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Tests.Perf_PriorityQueue&lt;Int32, Int32&gt;*'

System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>.Dequeue_And_Enqueue(Size: 10)

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System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>.HeapSort(Size: 1000)

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System.Collections.Tests.Perf_PriorityQueue<Int32, Int32>.Dequeue_And_Enqueue(Size: 1000)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Uri

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
UnescapeDataString - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	54.62 ns	59.60 ns	1.09	0.24	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Uri*'

System.Tests.Perf_Uri.UnescapeDataString(input: "abc%20def%20ghi%20")

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
BinarySearch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.09 ns	8.17 ns	1.34	0.03	False
BinarySearch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.68 ns	14.43 ns	1.35	0.03	False
BinarySearch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	17.44 ns	22.92 ns	1.31	0.13	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span&lt;Int32&gt;*'

System.Memory.Span<Int32>.BinarySearch(Size: 4)

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System.Memory.Span<Int32>.BinarySearch(Size: 33)

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System.Memory.Span<Int32>.BinarySearch(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Int32

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TryFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.71 ns	18.01 ns	1.15	0.14	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Int32*'

System.Tests.Perf_Int32.TryFormat(value: -2147483648)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Perf_LengthBucketsFrozenDictionary

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	163.60 ns	225.38 ns	1.38	0.02	False
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	1.62 μs	2.21 μs	1.36	0.04	True
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	16.40 ns	22.24 ns	1.36	0.16	False
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	16.12 ns	22.45 ns	1.39	0.12	False
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	1.65 μs	2.21 μs	1.34	0.04	True
TryGetValue_False_FrozenDictionary - Duration of single invocation ADX - Test Multi Config Graph	163.73 ns	225.19 ns	1.38	0.06	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Perf_LengthBucketsFrozenDictionary*'

System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 100, ItemsPerBucket: 1)

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System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 1000, ItemsPerBucket: 5)

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System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 10, ItemsPerBucket: 5)

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System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 10, ItemsPerBucket: 1)

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System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 1000, ItemsPerBucket: 1)

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System.Collections.Perf_LengthBucketsFrozenDictionary.TryGetValue_False_FrozenDictionary(Count: 100, ItemsPerBucket: 5)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Text.Tests.Utf8ParserTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TryParseByte - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	4.13 ns	5.23 ns	1.27	0.05	False
TryParseSByte - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.22 ns	6.82 ns	1.31	0.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8ParserTests*'

System.Buffers.Text.Tests.Utf8ParserTests.TryParseByte(value: 255)

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System.Buffers.Text.Tests.Utf8ParserTests.TryParseSByte(value: 127)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

performanceautofiler · 2024-06-25T09:11:50Z

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Perf_Get

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
GetInt32 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	772.92 ns	828.50 ns	1.07	0.15	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Get*'

System.Text.Json.Tests.Perf_Get.GetInt32

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchF.InvMt

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.33 ms	3.57 ms	1.07	0.31	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchF.InvMt*'

Benchstone.BenchF.InvMt.Test

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Cache

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IsMatch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	35.68 ms	38.07 ms	1.07	0.08	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Cache*'

System.Text.RegularExpressions.Tests.Perf_Regex_Cache.IsMatch(total: 400000, unique: 1, cacheSize: 15)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsTrue<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FrozenSet - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	2.11 μs	2.31 μs	1.10	0.08	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrue&lt;Int32&gt;*'

System.Collections.ContainsTrue<Int32>.FrozenSet(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.RegularExpressions.Tests.Perf_Regex_Common

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IP_IsMatch - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	526.26 ns	572.98 ns	1.09	0.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.RegularExpressions.Tests.Perf_Regex_Common*'

System.Text.RegularExpressions.Tests.Perf_Regex_Common.IP_IsMatch(Options: None)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in LinqBenchmarks

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
Where00LinqMethodX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	244.41 ms	278.45 ms	1.14	0.14	False
Order00LinqQueryX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	65.89 ms	70.74 ms	1.07	0.15	False
Count00LinqMethodX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	507.55 ms	590.24 ms	1.16	0.18	False
Order00ManualX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	106.41 ms	117.86 ms	1.11	0.03	False
Order00LinqMethodX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	65.81 ms	72.23 ms	1.10	0.14	False
Where00LinqQueryX - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	240.25 ms	278.21 ms	1.16	0.14	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'LinqBenchmarks*'

LinqBenchmarks.Where00LinqMethodX

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LinqBenchmarks.Order00LinqQueryX

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LinqBenchmarks.Count00LinqMethodX

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LinqBenchmarks.Order00ManualX

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LinqBenchmarks.Order00LinqMethodX

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LinqBenchmarks.Where00LinqQueryX

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_UInt64

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
TryFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.72 ns	6.86 ns	1.20	0.03	False
TryFormat - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	16.82 ns	20.33 ns	1.21	0.02	False
TryParse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	7.25 ns	8.85 ns	1.22	0.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_UInt64*'

System.Tests.Perf_UInt64.TryFormat(value: 12345)

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System.Tests.Perf_UInt64.TryFormat(value: 18446744073709551615)

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System.Tests.Perf_UInt64.TryParse(value: "0")

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsFalse<String>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Array - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	439.51 μs	664.32 μs	1.51	0.09	False
ImmutableArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	828.32 μs	939.62 μs	1.13	0.09	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsFalse&lt;String&gt;*'

System.Collections.ContainsFalse<String>.Array(Size: 512)

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System.Collections.ContainsFalse<String>.ImmutableArray(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Byte

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.65 ns	11.76 ns	1.10	0.07	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_Byte*'

System.Tests.Perf_Byte.Parse(value: "255")

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Perf_Convert

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector
ToBase64String - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.72 μs	1.89 μs	1.10	0.03	False
FromHexString - Duration of single invocation ADX - Test Multi Config Graph	24.47 ns	26.34 ns	1.08	0.23	False
ToBase64CharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.59 μs	1.77 μs	1.12	0.01	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Perf_Convert*'

System.Perf_Convert.ToBase64String(formattingOptions: InsertLineBreaks)

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System.Perf_Convert.FromHexString

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System.Perf_Convert.ToBase64CharArray(binaryDataSize: 1024, formattingOptions: InsertLineBreaks)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Xml.Linq.Perf_XName

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
CreateElement - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.99 ns	15.73 ns	1.12	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Xml.Linq.Perf_XName*'

System.Xml.Linq.Perf_XName.CreateElement

ETL Files

Histogram

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsKeyTrue<Int32, Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ImmutableSortedDictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	17.25 μs	22.19 μs	1.29	0.02	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyTrue&lt;Int32, Int32&gt;*'

System.Collections.ContainsKeyTrue<Int32, Int32>.ImmutableSortedDictionary(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Xml.Linq.Perf_XElement

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
CreateElement - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	25.93 ns	28.38 ns	1.09	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Xml.Linq.Perf_XElement*'

System.Xml.Linq.Perf_XElement.CreateElement

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in ByteMark

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
BenchLUDecomp - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.34 secs	1.49 secs	1.11	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'ByteMark*'

ByteMark.BenchLUDecomp

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Reflection.Invoke

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
StaticMethod5_arrayNotCached_int_string_struct_class_bool - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	72.18 ns	79.09 ns	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Reflection.Invoke*'

System.Reflection.Invoke.StaticMethod5_arrayNotCached_int_string_struct_class_bool

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

performanceautofiler · 2024-06-25T09:11:50Z

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Reflection.Activator<EmptyClass>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
CreateInstanceType - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.17 ns	12.51 ns	1.12	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Reflection.Activator&lt;EmptyClass&gt;*'

System.Reflection.Activator<EmptyClass>.CreateInstanceType

ETL Files

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsKeyFalse<Int32, Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FrozenDictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.68 μs	1.95 μs	1.16	0.08	False
Dictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.32 μs	4.12 μs	1.24	0.15	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsKeyFalse&lt;Int32, Int32&gt;*'

System.Collections.ContainsKeyFalse<Int32, Int32>.FrozenDictionary(Size: 512)

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System.Collections.ContainsKeyFalse<Int32, Int32>.Dictionary(Size: 512)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Perf_Frozen<NotKnownComparable>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Contains_True - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	208.39 ns	263.64 ns	1.27	0.10	True
ToFrozenSet - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	111.51 ns	117.64 ns	1.05	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Perf_Frozen&lt;NotKnownComparable&gt;*'

System.Collections.Perf_Frozen<NotKnownComparable>.Contains_True(Count: 64)

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System.Collections.Perf_Frozen<NotKnownComparable>.ToFrozenSet(Count: 4)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
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
ReadReturnBytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	79.98 ns	89.14 ns	1.11	0.21	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Text.Json.Tests.Perf_Reader*'

System.Text.Json.Tests.Perf_Reader.ReadReturnBytes(IsDataCompact: False, TestCase: HelloWorld)

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_SByte

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
TryParse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.69 ns	13.10 ns	1.12	0.07	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Tests.Perf_SByte*'

System.Tests.Perf_SByte.TryParse(value: "127")

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.MDBenchI.MDMidpoint

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	547.39 ms	651.98 ms	1.19	0.08	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.MDBenchI.MDMidpoint*'

Benchstone.MDBenchI.MDMidpoint.Test

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsTrueComparer<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
SortedSet - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	18.82 μs	20.68 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.ContainsTrueComparer&lt;Int32&gt;*'

System.Collections.ContainsTrueComparer<Int32>.SortedSet(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchF.SqMtx

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	585.39 ms	619.64 ms	1.06	0.00	True

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchF.SqMtx*'

Benchstone.BenchF.SqMtx.Test

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Text.Tests.Utf8FormatterTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FormatterUInt64 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	18.51 ns	21.22 ns	1.15	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Buffers.Text.Tests.Utf8FormatterTests*'

System.Buffers.Text.Tests.Utf8FormatterTests.FormatterUInt64(value: 18446744073709551615)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in SciMark2.kernel

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
benchMonteCarlo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	825.87 ms	911.76 ms	1.10	0.00	True

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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'SciMark2.kernel*'

SciMark2.kernel.benchMonteCarlo

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Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

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

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ConcurrentDictionary - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	6.70 μs	7.30 μs	1.09	0.06	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.TryGetValueFalse&lt;String, String&gt;*'

System.Collections.TryGetValueFalse<String, String>.ConcurrentDictionary(Size: 512)

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchI.Array2

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	917.21 ms	1.13 secs	1.23	0.01	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchI.Array2*'

Benchstone.BenchI.Array2.Test

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Net.Tests.Perf_WebUtility

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Decode_DecodingRequired - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	93.06 ns	103.46 ns	1.11	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Net.Tests.Perf_WebUtility*'

System.Net.Tests.Perf_WebUtility.Decode_DecodingRequired

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	257e76dfe64cb5b347aba7bc5a31a50c3c8cc106
Compare	4a7ac0e1f2dd20ec4424b4fccb0aba0624407a5f
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchI.BubbleSort2

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Test - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	31.69 ms	48.25 ms	1.52	0.07	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchI.BubbleSort2*'

Benchstone.BenchI.BubbleSort2.Test

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Docs

Profiling workflow for dotnet/runtime repository
Benchmarking workflow for dotnet/runtime repository

performanceautofiler bot added arch-x64 branch-refs/heads/main kind-micro os-windows perf-regression runtime-coreclr untriaged labels Jun 25, 2024

performanceautofiler bot mentioned this issue Jun 25, 2024

[SENTINEL] Autofile run complete at 6/25/2024 9:17:43 AM. 19 issues filed. #37004

Closed

DrewScoggins removed the untriaged label Jun 25, 2024

DrewScoggins closed this as completed Jun 25, 2024

DrewScoggins mentioned this issue Jun 25, 2024

JIT: Move targets of hot jumps to create fallthrough post-RPO layout dotnet/runtime#102927

Merged

DrewScoggins mentioned this issue Aug 22, 2024

Performance Fundamental: Net 8 -> Net 9 Manual Comparison Report dotnet/runtime#106824

Closed

[Perf] Windows/x64: 88 Regressions on 6/17/2024 6:09:36 PM #36986

[Perf] Windows/x64: 88 Regressions on 6/17/2024 6:09:36 PM #36986

Comments

performanceautofiler bot commented Jun 25, 2024

Run Information

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

Repro

System.Collections.ContainsKeyFalse<String, String>.ImmutableDictionary(Size: 512)

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Regressions in System.Tests.Perf_UInt32

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System.Tests.Perf_UInt32.Parse(value: "4294967295")

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System.Tests.Perf_UInt32.Parse(value: "12345")

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System.Tests.Perf_UInt32.ParseSpan(value: "12345")

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System.Tests.Perf_UInt32.TryParse(value: "4294967295")

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System.Tests.Perf_UInt32.ParseSpan(value: "0")

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System.Tests.Perf_UInt32.TryFormat(value: 4294967295)

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System.Tests.Perf_UInt32.ParseSpan(value: "4294967295")

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performanceautofiler bot commented Jun 25, 2024

Run Information

Regressions in System.Numerics.Tests.Perf_BigInteger

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System.Numerics.Tests.Perf_BigInteger.Remainder(arguments: 65536,32768 bits)

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System.Numerics.Tests.Perf_BigInteger.Remainder(arguments: 1024,512 bits)

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System.Numerics.Tests.Perf_BigInteger.Multiply(arguments: 1024,512 bits)

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System.Numerics.Tests.Perf_BigInteger.Divide(arguments: 1024,512 bits)

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Regressions in System.Text.Tests.Perf_StringBuilder

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System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100000)

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System.Text.Tests.Perf_StringBuilder.Append_Char_Capacity(length: 100)

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