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Increase max loops optimized by RyuJIT from 16 to 64. #55614
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Commits on Jul 14, 2021
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Increase max loops optimized by RyuJIT from 16 to 64.
16 seems remarkably small. Note that this number is used to allocate the statically-sized loop table, as well as for memory allocation for value numbering, so there is some overhead to increasing it. A few microbenchmarks that have diffs show benefit, including 9% for MulMatrix | Method | Job | Toolchain | Mean | Error | StdDev | Median | Min | Max | Ratio | |------- |----------- |---------------------------------------------------------------------------------- |---------:|--------:|--------:|---------:|---------:|---------:|------:| | LLoops | Job-JXEMSM | \runtime2\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 559.9 ms | 8.20 ms | 7.67 ms | 556.4 ms | 550.6 ms | 576.0 ms | 1.00 | | LLoops | Job-MUOLTV | \runtime\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 552.3 ms | 5.84 ms | 5.46 ms | 552.0 ms | 542.4 ms | 561.1 ms | 0.99 | | MulMatrix | Job-JXEMSM | \runtime2\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 369.7 ms | 4.01 ms | 3.56 ms | 369.9 ms | 364.6 ms | 376.9 ms | 1.00 | | MulMatrix | Job-MUOLTV | \runtime\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 338.1 ms | 2.69 ms | 2.51 ms | 337.7 ms | 332.2 ms | 341.9 ms | 0.91 | | Puzzle | Job-JXEMSM | \runtime2\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 403.4 ms | 6.93 ms | 6.48 ms | 402.3 ms | 394.8 ms | 412.5 ms | 1.00 | | Puzzle | Job-MUOLTV | \runtime\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root\CoreRun.exe | 394.9 ms | 4.16 ms | 3.68 ms | 395.5 ms | 388.2 ms | 401.8 ms | 0.98 | spmi diffs: ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 6264 Total bytes of diff: 6285 Total bytes of delta: 21 (0.34% of base) Total relative delta: 0.00 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 21 : 42451.dasm (0.34% of base) 1 total files with Code Size differences (0 improved, 1 regressed), 0 unchanged. Top method regressions (bytes): 21 ( 0.34% of base) : 42451.dasm - RelationalModel:Create(IModel,IRelationalAnnotationProvider):IRelationalModel Top method regressions (percentages): 21 ( 0.34% of base) : 42451.dasm - RelationalModel:Create(IModel,IRelationalAnnotationProvider):IRelationalModel 1 total methods with Code Size differences (0 improved, 1 regressed), 0 unchanged. ``` </details> -------------------------------------------------------------------------------- ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 39243 Total bytes of diff: 39940 Total bytes of delta: 697 (1.78% of base) Total relative delta: 0.16 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 536 : 25723.dasm (18.29% of base) 185 : 26877.dasm (2.21% of base) 66 : 16212.dasm (1.39% of base) 16 : 16196.dasm (0.36% of base) 13 : 13322.dasm (0.27% of base) 9 : 15596.dasm (0.16% of base) Top file improvements (bytes): -125 : 27270.dasm (-6.93% of base) -3 : 13993.dasm (-0.05% of base) 8 total files with Code Size differences (2 improved, 6 regressed), 0 unchanged. Top method regressions (bytes): 536 (18.29% of base) : 25723.dasm - Benchstone.BenchI.MulMatrix:Inner(System.Int32[][],System.Int32[][],System.Int32[][]) 185 ( 2.21% of base) : 26877.dasm - Benchstone.BenchF.LLoops:Main1(int):this 66 ( 1.39% of base) : 16212.dasm - Jil.Deserialize.Methods:SkipWithLeadChar(System.IO.TextReader,int) 16 ( 0.36% of base) : 16196.dasm - DynamicClass:_DynamicMethod9(System.IO.TextReader,int):MicroBenchmarks.Serializers.MyEventsListerViewModel 13 ( 0.27% of base) : 13322.dasm - DynamicClass:Regex1_Go(System.Text.RegularExpressions.RegexRunner) 9 ( 0.16% of base) : 15596.dasm - DynamicClass:_DynamicMethod9(byref,int):MicroBenchmarks.Serializers.MyEventsListerViewModel Top method improvements (bytes): -125 (-6.93% of base) : 27270.dasm - Benchstone.BenchI.Puzzle:DoIt():bool:this -3 (-0.05% of base) : 13993.dasm - Jil.Deserialize.Methods:SkipWithLeadCharThunkReader(byref,int) Top method regressions (percentages): 536 (18.29% of base) : 25723.dasm - Benchstone.BenchI.MulMatrix:Inner(System.Int32[][],System.Int32[][],System.Int32[][]) 185 ( 2.21% of base) : 26877.dasm - Benchstone.BenchF.LLoops:Main1(int):this 66 ( 1.39% of base) : 16212.dasm - Jil.Deserialize.Methods:SkipWithLeadChar(System.IO.TextReader,int) 16 ( 0.36% of base) : 16196.dasm - DynamicClass:_DynamicMethod9(System.IO.TextReader,int):MicroBenchmarks.Serializers.MyEventsListerViewModel 13 ( 0.27% of base) : 13322.dasm - DynamicClass:Regex1_Go(System.Text.RegularExpressions.RegexRunner) 9 ( 0.16% of base) : 15596.dasm - DynamicClass:_DynamicMethod9(byref,int):MicroBenchmarks.Serializers.MyEventsListerViewModel Top method improvements (percentages): -125 (-6.93% of base) : 27270.dasm - Benchstone.BenchI.Puzzle:DoIt():bool:this -3 (-0.05% of base) : 13993.dasm - Jil.Deserialize.Methods:SkipWithLeadCharThunkReader(byref,int) 8 total methods with Code Size differences (2 improved, 6 regressed), 0 unchanged. ``` </details> -------------------------------------------------------------------------------- ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 142908 Total bytes of diff: 143387 Total bytes of delta: 479 (0.34% of base) Total relative delta: 0.42 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 536 : 248723.dasm (18.29% of base) 390 : 220441.dasm (14.45% of base) 390 : 220391.dasm (14.61% of base) 150 : 239253.dasm (1.78% of base) 71 : 234803.dasm (1.72% of base) 16 : 225588.dasm (1.00% of base) 16 : 225590.dasm (1.00% of base) 5 : 225285.dasm (0.26% of base) Top file improvements (bytes): -359 : 215690.dasm (-0.99% of base) -320 : 215701.dasm (-1.16% of base) -128 : 215723.dasm (-0.73% of base) -128 : 215666.dasm (-0.62% of base) -125 : 239280.dasm (-6.93% of base) -29 : 216754.dasm (-0.33% of base) -3 : 225316.dasm (-0.15% of base) -3 : 225313.dasm (-0.15% of base) 16 total files with Code Size differences (8 improved, 8 regressed), 0 unchanged. Top method regressions (bytes): 536 (18.29% of base) : 248723.dasm - Benchstone.BenchI.MulMatrix:Inner(System.Int32[][],System.Int32[][],System.Int32[][]) 390 (14.45% of base) : 220441.dasm - VectorTest:Main():int 390 (14.61% of base) : 220391.dasm - VectorTest:Main():int 150 ( 1.78% of base) : 239253.dasm - Benchstone.BenchF.LLoops:Main1(int):this 71 ( 1.72% of base) : 234803.dasm - SmallLoop1:Main():int 16 ( 1.00% of base) : 225588.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int 16 ( 1.00% of base) : 225590.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int 5 ( 0.26% of base) : 225285.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int Top method improvements (bytes): -359 (-0.99% of base) : 215690.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -320 (-1.16% of base) : 215701.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -128 (-0.73% of base) : 215723.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -128 (-0.62% of base) : 215666.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -125 (-6.93% of base) : 239280.dasm - Benchstone.BenchI.Puzzle:DoIt():bool:this -29 (-0.33% of base) : 216754.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -3 (-0.15% of base) : 225316.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -3 (-0.15% of base) : 225313.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int Top method regressions (percentages): 536 (18.29% of base) : 248723.dasm - Benchstone.BenchI.MulMatrix:Inner(System.Int32[][],System.Int32[][],System.Int32[][]) 390 (14.61% of base) : 220391.dasm - VectorTest:Main():int 390 (14.45% of base) : 220441.dasm - VectorTest:Main():int 150 ( 1.78% of base) : 239253.dasm - Benchstone.BenchF.LLoops:Main1(int):this 71 ( 1.72% of base) : 234803.dasm - SmallLoop1:Main():int 16 ( 1.00% of base) : 225588.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int 16 ( 1.00% of base) : 225590.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int 5 ( 0.26% of base) : 225285.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int Top method improvements (percentages): -125 (-6.93% of base) : 239280.dasm - Benchstone.BenchI.Puzzle:DoIt():bool:this -320 (-1.16% of base) : 215701.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -359 (-0.99% of base) : 215690.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -128 (-0.73% of base) : 215723.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -128 (-0.62% of base) : 215666.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -29 (-0.33% of base) : 216754.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -3 (-0.15% of base) : 225316.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int -3 (-0.15% of base) : 225313.dasm - IntelHardwareIntrinsicTest.Program:Main(System.String[]):int 16 total methods with Code Size differences (8 improved, 8 regressed), 0 unchanged. ``` </details> -------------------------------------------------------------------------------- ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 15351 Total bytes of diff: 15448 Total bytes of delta: 97 (0.63% of base) Total relative delta: 0.08 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 71 : 63973.dasm (7.63% of base) 26 : 106039.dasm (0.19% of base) 2 total files with Code Size differences (0 improved, 2 regressed), 1 unchanged. Top method regressions (bytes): 71 ( 7.63% of base) : 63973.dasm - Microsoft.Diagnostics.Tracing.Parsers.Symbol.FileVersionTraceData:ToXml(System.Text.StringBuilder):System.Text.StringBuilder:this 26 ( 0.19% of base) : 106039.dasm - Microsoft.VisualBasic.CompilerServices.VBBinder:BindToMethod(int,System.Reflection.MethodBase[],byref,System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,System.String[],byref):System.Reflection.MethodBase:this Top method regressions (percentages): 71 ( 7.63% of base) : 63973.dasm - Microsoft.Diagnostics.Tracing.Parsers.Symbol.FileVersionTraceData:ToXml(System.Text.StringBuilder):System.Text.StringBuilder:this 26 ( 0.19% of base) : 106039.dasm - Microsoft.VisualBasic.CompilerServices.VBBinder:BindToMethod(int,System.Reflection.MethodBase[],byref,System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,System.String[],byref):System.Reflection.MethodBase:this 2 total methods with Code Size differences (0 improved, 2 regressed), 1 unchanged. ``` </details> -------------------------------------------------------------------------------- ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 22540 Total bytes of diff: 22576 Total bytes of delta: 36 (0.16% of base) Total relative delta: 0.01 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 23 : 104600.dasm (0.15% of base) 14 : 43143.dasm (0.47% of base) Top file improvements (bytes): -1 : 35267.dasm (-0.03% of base) 3 total files with Code Size differences (1 improved, 2 regressed), 0 unchanged. Top method regressions (bytes): 23 ( 0.15% of base) : 104600.dasm - Microsoft.VisualBasic.CompilerServices.VBBinder:BindToMethod(int,System.Reflection.MethodBase[],byref,System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,System.String[],byref):System.Reflection.MethodBase:this 14 ( 0.47% of base) : 43143.dasm - Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol:ForceComplete(Microsoft.CodeAnalysis.SourceLocation,System.Threading.CancellationToken):this Top method improvements (bytes): -1 (-0.03% of base) : 35267.dasm - Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LanguageParser:ParseNamespaceBody(byref,byref,byref,ushort):this Top method regressions (percentages): 14 ( 0.47% of base) : 43143.dasm - Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol:ForceComplete(Microsoft.CodeAnalysis.SourceLocation,System.Threading.CancellationToken):this 23 ( 0.15% of base) : 104600.dasm - Microsoft.VisualBasic.CompilerServices.VBBinder:BindToMethod(int,System.Reflection.MethodBase[],byref,System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,System.String[],byref):System.Reflection.MethodBase:this Top method improvements (percentages): -1 (-0.03% of base) : 35267.dasm - Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.LanguageParser:ParseNamespaceBody(byref,byref,byref,ushort):this 3 total methods with Code Size differences (1 improved, 2 regressed), 0 unchanged. ``` </details> -------------------------------------------------------------------------------- ``` Summary of Code Size diffs: (Lower is better) Total bytes of base: 53782 Total bytes of diff: 53837 Total bytes of delta: 55 (0.10% of base) Total relative delta: 0.00 diff is a regression. relative diff is a regression. ``` <details> <summary>Detail diffs</summary> ``` Top file regressions (bytes): 28 : 28889.dasm (0.16% of base) 27 : 28887.dasm (0.15% of base) 2 total files with Code Size differences (0 improved, 2 regressed), 2 unchanged. Top method regressions (bytes): 28 ( 0.16% of base) : 28889.dasm - ManagedTests.DynamicCSharp.Conformance.dynamic.statements.freach.freach003.freach003.Test:MainMethod():int 27 ( 0.15% of base) : 28887.dasm - ManagedTests.DynamicCSharp.Conformance.dynamic.statements.freach.freach004.freach004.Test:MainMethod():int Top method regressions (percentages): 28 ( 0.16% of base) : 28889.dasm - ManagedTests.DynamicCSharp.Conformance.dynamic.statements.freach.freach003.freach003.Test:MainMethod():int 27 ( 0.15% of base) : 28887.dasm - ManagedTests.DynamicCSharp.Conformance.dynamic.statements.freach.freach004.freach004.Test:MainMethod():int 2 total methods with Code Size differences (0 improved, 2 regressed), 2 unchanged. ``` </details> --------------------------------------------------------------------------------
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