[Perf] Windows/x64: 52 Regressions on 6/14/2025 5:22:46 PM +00:00

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Span.Sorting

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
QuickSortSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	13.69 μs	18.30 μs	1.34	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 'Span.Sorting*'

Span.Sorting.QuickSortSpan(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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Int64

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	11.31 ns	16.47 ns	1.46	0.02	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	26.68 ns	37.01 ns	1.39	0.04	False
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.37 ns	14.94 ns	1.44	0.05	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.23 ns	15.43 ns	1.37	0.04	False
TryParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	26.60 ns	36.91 ns	1.39	0.09	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	27.61 ns	30.69 ns	1.11	0.06	False
TryParse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	27.40 ns	30.62 ns	1.12	0.05	False
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	30.57 ns	42.02 ns	1.37	0.06	False
TryParse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	31.91 ns	37.62 ns	1.18	0.06	False
TryParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	10.95 ns	16.83 ns	1.54	0.08	False
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	26.75 ns	32.32 ns	1.21	0.04	False
TryParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	26.96 ns	31.77 ns	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.Tests.Perf_Int64*'

System.Tests.Perf_Int64.TryParse(value: "12345")

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System.Tests.Perf_Int64.ParseSpan(value: "9223372036854775807")

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System.Tests.Perf_Int64.Parse(value: "12345")

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System.Tests.Perf_Int64.ParseSpan(value: "12345")

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System.Tests.Perf_Int64.TryParseSpan(value: "9223372036854775807")

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System.Tests.Perf_Int64.ParseSpan(value: "-9223372036854775808")

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System.Tests.Perf_Int64.TryParse(value: "-9223372036854775808")

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System.Tests.Perf_Int64.Parse(value: "9223372036854775807")

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System.Tests.Perf_Int64.TryParse(value: "9223372036854775807")

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System.Tests.Perf_Int64.TryParseSpan(value: "12345")

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System.Tests.Perf_Int64.Parse(value: "-9223372036854775808")

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System.Tests.Perf_Int64.TryParseSpan(value: "-9223372036854775808")

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in ArrayDeAbstraction

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
foreach_opaque_array_via_interface - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	376.44 ns	487.18 ns	1.29	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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'ArrayDeAbstraction*'

ArrayDeAbstraction.foreach_opaque_array_via_interface

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in PerfLabTests.LowLevelPerf

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
EmptyStaticFunction5Arg - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.59 ms	1.84 ms	1.15	0.02	False
GenericClassGenericStaticMethod - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	155.96 μs	187.15 μs	1.20	0.12	False
StructWithInterfaceInterfaceMethod - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	156.00 μs	187.15 μs	1.20	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 'PerfLabTests.LowLevelPerf*'

PerfLabTests.LowLevelPerf.EmptyStaticFunction5Arg

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PerfLabTests.LowLevelPerf.GenericClassGenericStaticMethod

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PerfLabTests.LowLevelPerf.StructWithInterfaceInterfaceMethod

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.ContainsFalse<Int32>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	24.44 μs	27.79 μs	1.14	0.14	False
ImmutableArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	21.66 μs	24.82 μs	1.15	0.27	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<Int32>*'

System.Collections.ContainsFalse<Int32>.Span(Size: 512)

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System.Collections.ContainsFalse<Int32>.ImmutableArray(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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Memory.Span<Char>

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
StartsWith - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	12.14 ns	13.43 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.Memory.Span<Char>*'

System.Memory.Span<Char>.StartsWith(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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in PerfLabTests.CastingPerf

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
FooObjIsFoo2 - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	283.70 μs	313.05 μs	1.10	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 'PerfLabTests.CastingPerf*'

PerfLabTests.CastingPerf.FooObjIsFoo2

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
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	768.46 μs	871.82 μs	1.13	0.01	False
Span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	768.20 μs	870.05 μs	1.13	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.Collections.ContainsFalse<String>*'

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

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System.Collections.ContainsFalse<String>.Span(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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in IfStatements.IfStatements

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
AndAnd - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	37.46 μs	40.60 μs	1.08	0.01	False
Single - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	28.14 μs	34.32 μs	1.22	0.01	False
AndAndAnd - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	43.55 μs	49.75 μs	1.14	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 'IfStatements.IfStatements*'

IfStatements.IfStatements.AndAnd

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IfStatements.IfStatements.Single

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IfStatements.IfStatements.AndAndAnd

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Buffers.Binary.Tests.BinaryReadAndWriteTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
MeasureReverseEndianness - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	879.41 ns	941.12 ns	1.07	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.Binary.Tests.BinaryReadAndWriteTests*'

System.Buffers.Binary.Tests.BinaryReadAndWriteTests.MeasureReverseEndianness

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_UInt64

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	12.12 ns	14.42 ns	1.19	0.04	False
Parse - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.66 ns	14.99 ns	1.29	0.04	False
ParseSpan - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	12.15 ns	14.64 ns	1.20	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.Tests.Perf_UInt64*'

System.Tests.Perf_UInt64.TryParse(value: "12345")

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System.Tests.Perf_UInt64.Parse(value: "12345")

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System.Tests.Perf_UInt64.ParseSpan(value: "12345")

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

[performanceautofiler]

Run Information

Name	Value
Architecture	x64
OS	Windows 10.0.22621
Queue	TigerWindows
Baseline	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in PerfLabTests.CastingPerf2.CastingPerf

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IFooObjIsIFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	291.99 μs	343.12 μs	1.18	0.04	False
ObjFooIsObj - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	586.72 μs	624.65 μs	1.06	0.02	False
FooObjIsFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	557.66 μs	624.64 μs	1.12	0.03	False
FooObjIsDescendant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	286.38 μs	312.75 μs	1.09	0.09	False
IFooFooIsIFoo - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	593.65 μs	626.39 μs	1.06	0.01	False
FooObjIsNull - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	374.30 μs	496.12 μs	1.33	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 'PerfLabTests.CastingPerf2.CastingPerf*'

PerfLabTests.CastingPerf2.CastingPerf.IFooObjIsIFoo

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PerfLabTests.CastingPerf2.CastingPerf.ObjFooIsObj

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PerfLabTests.CastingPerf2.CastingPerf.FooObjIsFoo

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PerfLabTests.CastingPerf2.CastingPerf.FooObjIsDescendant

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PerfLabTests.CastingPerf2.CastingPerf.IFooFooIsIFoo

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PerfLabTests.CastingPerf2.CastingPerf.FooObjIsNull

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Perf_Ascii

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Equals_Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	5.55 ns	7.60 ns	1.37	0.01	False
Equals_Chars - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	11.18 ns	13.63 ns	1.22	0.01	False
EqualsIgnoreCase_DifferentCase_Bytes - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	15.06 ns	16.37 ns	1.09	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.Text.Perf_Ascii*'

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

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

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

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.MathBenchmarks.Double

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ScaleB - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	9.60 μs	10.21 μs	1.06	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.MathBenchmarks.Double*'

System.MathBenchmarks.Double.ScaleB

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Tests.Perf_Char

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Char_ToLowerInvariant - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	8.50 ns	10.67 ns	1.26	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_Char*'

System.Tests.Perf_Char.Char_ToLowerInvariant(input: "Hello World!")

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Globalization.Tests.StringSearch

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
IsSuffix_DifferentLastChar - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	12.32 ns	13.60 ns	1.10	0.03	False
IndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	24.93 ns	29.51 ns	1.18	0.02	False
LastIndexOf_Word_NotFound - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	929.52 ns	1.06 μs	1.15	0.33	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.Globalization.Tests.StringSearch*'

System.Globalization.Tests.StringSearch.IsSuffix_DifferentLastChar(Options: (en-US, IgnoreCase, False))

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System.Globalization.Tests.StringSearch.IndexOf_Word_NotFound(Options: (en-US, Ordinal, False))

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System.Globalization.Tests.StringSearch.LastIndexOf_Word_NotFound(Options: (en-US, OrdinalIgnoreCase, False))

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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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in SeekUnroll

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	2.11 secs	2.54 secs	1.20	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 'SeekUnroll*'

SeekUnroll.Test(boxedIndex: 27)

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.IterateForEach<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	1.37 μs	1.50 μs	1.09	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.IterateForEach<Int32>*'

System.Collections.IterateForEach<Int32>.FrozenDictionary(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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in Benchstone.BenchI.IniArray

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	78.96 ms	90.21 ms	1.14	0.50	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.IniArray*'

Benchstone.BenchI.IniArray.Test

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Collections.Perf_Frozen<Int16>

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	15.66 ns	16.82 ns	1.07	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.Perf_Frozen<Int16>*'

System.Collections.Perf_Frozen<Int16>.Contains_True(Count: 4)

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
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
IndexerCheckPathLength - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	116.25 ns	159.37 ns	1.37	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.Tests.Perf_String*'

System.Tests.Perf_String.IndexerCheckPathLength

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Text.Json.Tests.Utf8JsonReaderCommentsTests

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
Utf8JsonReaderCommentParsing - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	617.76 ns	651.98 ns	1.06	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.Text.Json.Tests.Utf8JsonReaderCommentsTests*'

System.Text.Json.Tests.Utf8JsonReaderCommentsTests.Utf8JsonReaderCommentParsing(CommentHandling: Allow, SegmentSize: 0, TestCase: LongMultiLine)

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
Diff	Diff
Configs	CompilationMode:tiered, RunKind:micro

Regressions in System.Perf_Convert

Benchmark	Baseline	Test	Test/Base	Test Quality	Edge Detector	Baseline IR	Compare IR	IR Ratio
ToBase64CharArray - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	1.67 μs	1.79 μs	1.07	0.41	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.ToBase64CharArray(binaryDataSize: 1024, formattingOptions: InsertLineBreaks)

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	3cabc2180c2a1707ba535e5d6911d53d58731dd2
Compare	9ed11b9729f17813247a8bebd39873c32305fc7e
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
NextBytes_span - Duration of single invocation 📝 - Benchmark Source ADX - Test Multi Config Graph	3.29 μs	3.75 μs	1.14	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.Tests.Perf_Random*'

System.Tests.Perf_Random.NextBytes_span

ETL Files

Histogram

JIT Disasms

Docs

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

[DrewScoggins]

Related to #115850

Related Regressions:

• [Perf] Linux/x64: 21 Regressions on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57704
• [Perf] Windows/x64: 33 Regressions on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57670
• [Perf] Linux/x64: 52 Regressions on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57674
• [Perf] Windows/x64: 1 Regression on 6/14/2025 10:32:44 AM +00:00 perf-autofiling-issues#57807
• [Perf] Linux/x64: 2 Regressions on 6/14/2025 9:46:56 PM +00:00 perf-autofiling-issues#57675
• [Perf] Windows/x64: 1 Regression on 6/16/2025 4:50:19 AM +00:00 perf-autofiling-issues#57671

Related Improvements:

• [Perf] Windows/x64: 31 Improvements on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57831
• [Perf] Linux/x64: 19 Improvements on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57712
• [Perf] Linux/x64: 50 Improvements on 6/14/2025 5:22:46 PM +00:00 perf-autofiling-issues#57689

[AndyAyersMS]

@amanasifkhalid FYI