GCC 7.1 vs. 8.0 vs. LLVM Clang znver1 Compiler Tests

AMD Ryzen 7 1700 Eight-Core compiler tests. Tests by Michael Larabel for a future article.

HTML result view exported from: https://openbenchmarking.org/result/1707212-TR-GCCLLVMZE77&sro.

ProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay DriverCompilerFile-SystemScreen ResolutionClang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1AMD Ryzen 7 1700 Eight-Core @ 3.00GHz (16 Cores)MSI B350 TOMAHAWK (MS-7A34) v1.0AMD Device 145016384MB120GB Samsung SSD 840HIS AMD Radeon HD 7750/8740 / R7 250E 1024MBAMD Cape Verde/PitcairnRealtek RTL8111/8168/8411Ubuntu 17.044.12.0-999-generic (x86_64) 20170622Unity 7.5.0modesetting 1.19.3Clang 4.0.0-1ubuntu1ext41024x768Clang 6.0.0 (SVN 308494)GCC 6.3.0 20170406GCC 7.1.0GCC 8.0.0 20170716OpenBenchmarking.orgProcessor Details- Scaling Governor: acpi-cpufreq ondemandCompiler Details- Clang SVN: -O3 -march=x86-64: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1- Clang SVN: -O3 -march=znver1: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1- GCC 6.3.0: -O3 -march=x86-64: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --program-prefix=x86_64-linux-gnu- --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - GCC 6.3.0: -O3 -march=znver1: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --program-prefix=x86_64-linux-gnu- --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic -v - GCC 7.1.0: -O3 -march=x86-64: --disable-multilib --enable-checking=release --enable-languages=c,c++- GCC 7.1.0: -O3 -march=znver1: --disable-multilib --enable-checking=release --enable-languages=c,c++- GCC 8.0.0: -O3 -march=x86-64: --disable-multilib --enable-checking=release --enable-languages=c,c++- GCC 8.0.0: -O3 -march=znver1: --disable-multilib --enable-checking=release --enable-languages=c,c++

fftw: Float + SSE - 2D FFT Size 4096scimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationtscp: AI Chess Performancex264: H.264 Video Encodinggraphics-magick: Blurgraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solverebizzy: c-ray: Total Timestockfish: Total Timebullet: Raytestsbullet: 3000 Fallbullet: 1000 Stackbullet: 1000 Convexbullet: 136 Ragdollsbullet: Prim Trimeshbullet: Convex Trimeshencode-flac: WAV To FLACencode-mp3: WAV To MP3encode-wavpack: WAV To WavPacktachyon: Total Timetjbench: Decompression Throughputpgbench: Buffer Test - Normal Load - Read Writepgbench: Buffer Test - Single Thread - Read Writepgbench: Buffer Test - Heavy Contention - Read Writeredis: LPOPredis: GETredis: SEThint: FLOATapache: Static Web Page ServingClang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1 -O3 -march=x86-64 -O3 -march=znver1129752124.54623.66134.392654.485534.541675.631054730252.21105571321631331114.0340827814.7237042.854.625.334.892.970.991.196.779.626.505.23163.711899.66226.162021.121890860.671900142.801415121.33301996595.0927221.41130722174.86651.73135.842616.815792.781677.131019964252.73101601351481341115.3640680214.6236712.794.535.144.692.930.991.175.7210.746.445.25166.391938.55226.212061.891908429.461896426.081400655.09301686748.9226808.65136902129.48642.55133.362623.755572.721675.031103331252.331361371731331110.9240850913.6837102.864.625.274.842.961.001.206.779.756.525.29161.781865.09226.041938.931968693.381953368.381385134.04301795000.8526994.80133982152.36657.96134.242597.545692.831679.211096303252.521401391781361022.6538296013.6236702.784.535.104.642.930.991.165.6910.926.455.29165.301813.34224.891875.271960971.501973143.291413713.29300351844.0527700.93129241528.55677.17264.452445.903177.751077.4910245301591672142231261096.253935029.1939142.774.595.394.802.870.961.185.729.776.447.36163.541567.11213.801700.042022888.711965296.751449577.00304975438.9926067.59135781551.20674.30254.892595.213157.081074.5210154521681832242341291042.523878838.3439262.694.475.164.502.810.941.136.159.526.397.28165.821683.62215.461403.152040441.772024240.251455351.92308730450.2325746.88128031673.15673.41264.572553.083796.791077.89944083239.531581652102191251093.2339718911.2037542.714.515.174.742.860.931.155.929.726.45165.771453.17196.491009.232007166.132039849.731433512.50306015412.4625648.47135451593.68232.87252.962593.923811.921076.731011716237.231661812202281281032.293860149.6338262.844.445.135.412.780.941.236.149.506.39167.021119.32160.27958.072045776.022026468.131452900.96309323159.0325688.51129371562.89672.69239.172653.083171.291078.21987426237.591611712152251281004.303718349.1638042.684.515.234.732.880.941.165.939.736.45165.611137.96170.67954.571962522.211959467.751416798.48307840753.3525669.38134861441.42274.03240.012438.893177.121077.041015447238.41167182225233129982.633889238.1839312.824.485.185.422.820.951.246.159.326.39163.54904.86144.57987.101955849.542020214.601422985.00309230599.8825831.38OpenBenchmarking.org

FFTW

Build: Float + SSE - Size: 2D FFT Size 4096

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.4Build: Float + SSE - Size: 2D FFT Size 4096-O3 -march=x86-64-O3 -march=znver13K6K9K12K15KSE +/- 25.06, N = 5SE +/- 75.88, N = 5SE +/- 12.52, N = 5SE +/- 55.71, N = 5SE +/- 39.73, N = 5SE +/- 27.02, N = 5SE +/- 64.07, N = 5SE +/- 31.07, N = 5SE +/- 46.46, N = 5SE +/- 68.37, N = 5129751307213690133981292413578128031354512937134861. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Composite

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Composite-O3 -march=x86-64-O3 -march=znver15001000150020002500SE +/- 10.27, N = 4SE +/- 6.84, N = 4SE +/- 2.34, N = 4SE +/- 2.54, N = 4SE +/- 1.69, N = 4SE +/- 2.44, N = 4SE +/- 1.19, N = 4SE +/- 3.68, N = 4SE +/- 2.94, N = 4SE +/- 2.23, N = 42124.542174.862129.482152.361528.551551.201673.151593.681562.891441.421. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Monte Carlo

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte Carlo-O3 -march=x86-64-O3 -march=znver1150300450600750SE +/- 0.39, N = 4SE +/- 0.07, N = 4SE +/- 0.08, N = 4SE +/- 0.67, N = 4SE +/- 0.12, N = 4SE +/- 2.36, N = 4SE +/- 0.12, N = 4SE +/- 0.19, N = 4SE +/- 0.67, N = 4SE +/- 0.05, N = 4623.66651.73642.55657.96677.17674.30673.41232.87672.69274.031. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Fast Fourier Transform

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier Transform-O3 -march=x86-64-O3 -march=znver160120180240300SE +/- 0.28, N = 4SE +/- 0.22, N = 4SE +/- 0.55, N = 4SE +/- 0.63, N = 4SE +/- 0.07, N = 4SE +/- 0.11, N = 4SE +/- 0.09, N = 4SE +/- 0.19, N = 4SE +/- 0.16, N = 4SE +/- 0.10, N = 4134.39135.84133.36134.24264.45254.89264.57252.96239.17240.011. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Sparse Matrix Multiply

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix Multiply-O3 -march=x86-64-O3 -march=znver16001200180024003000SE +/- 3.12, N = 4SE +/- 3.22, N = 4SE +/- 4.33, N = 4SE +/- 5.05, N = 4SE +/- 6.35, N = 4SE +/- 7.33, N = 4SE +/- 5.49, N = 4SE +/- 11.85, N = 4SE +/- 10.45, N = 4SE +/- 7.39, N = 42654.482616.812623.752597.542445.902595.212553.082593.922653.082438.891. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Dense LU Matrix Factorization

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix Factorization-O3 -march=x86-64-O3 -march=znver112002400360048006000SE +/- 49.61, N = 4SE +/- 36.57, N = 4SE +/- 14.40, N = 4SE +/- 16.27, N = 4SE +/- 2.94, N = 4SE +/- 10.73, N = 4SE +/- 8.77, N = 4SE +/- 8.48, N = 4SE +/- 6.28, N = 4SE +/- 6.13, N = 45534.545792.785572.725692.833177.753157.083796.793811.923171.293177.121. (CC) gcc options: -O3 -lm

SciMark

Computational Test: Jacobi Successive Over-Relaxation

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-Relaxation-O3 -march=x86-64-O3 -march=znver1400800120016002000SE +/- 0.35, N = 4SE +/- 0.75, N = 4SE +/- 0.35, N = 4SE +/- 0.50, N = 4SE +/- 0.62, N = 4SE +/- 1.27, N = 4SE +/- 0.26, N = 4SE +/- 0.56, N = 4SE +/- 0.42, N = 4SE +/- 0.33, N = 41675.631677.131675.031679.211077.491074.521077.891076.731078.211077.041. (CC) gcc options: -O3 -lm

TSCP

AI Chess Performance

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess Performance-O3 -march=x86-64-O3 -march=znver1200K400K600K800K1000KSE +/- 987.82, N = 5SE +/- 1196.29, N = 5SE +/- 1625.76, N = 5SE +/- 1629.46, N = 5SE +/- 2144.16, N = 5SE +/- 1272.16, N = 5SE +/- 396.08, N = 5SE +/- 455.12, N = 5SE +/- 1962.31, N = 5SE +/- 458.30, N = 5105473010199641103331109630310245301015452944083101171698742610154471. (CC) gcc options: -O3

x264

H.264 Video Encoding

Clang 4.0Clang SVNGCC 7.1.0GCC 8.0.0OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2017-05-19H.264 Video Encoding-O3 -march=x86-64-O3 -march=znver160120180240300SE +/- 0.72, N = 5SE +/- 1.15, N = 5SE +/- 0.34, N = 5SE +/- 0.68, N = 5SE +/- 0.55, N = 5SE +/- 1.90, N = 5SE +/- 2.25, N = 5SE +/- 2.46, N = 5252.21252.73252.33252.52239.53237.23237.59238.411. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize

GraphicsMagick

Operation: Blur

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Blur-O3 -march=x86-64-O3 -march=znver14080120160200SE +/- 0.67, N = 3SE +/- 0.33, N = 31051011361401591681581661611671. (CC) gcc options: -fopenmp -O3 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -ldl -lpthread

GraphicsMagick

Operation: Sharpen

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Sharpen-O3 -march=x86-64-O3 -march=znver14080120160200SE +/- 0.33, N = 357601371391671831651811711821. (CC) gcc options: -fopenmp -O3 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -ldl -lpthread

GraphicsMagick

Operation: Resizing

Clang 4.0GCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Resizing-O3 -march=x86-64-O3 -march=znver150100150200250SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 31321352142242102202152251. (CC) gcc options: -fopenmp -O3 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -ldl -lpthread

GraphicsMagick

Operation: HWB Color Space

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color Space-O3 -march=x86-64-O3 -march=znver150100150200250SE +/- 0.33, N = 3SE +/- 0.58, N = 31631481731782232342192282252331. (CC) gcc options: -fopenmp -O3 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -ldl -lpthread

GraphicsMagick

Operation: Local Adaptive Thresholding

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive Thresholding-O3 -march=x86-64-O3 -march=znver13060901201501331341331361261291251281281291. (CC) gcc options: -fopenmp -O3 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -ldl -lpthread

Himeno Benchmark

Poisson Pressure Solver

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure Solver-O3 -march=x86-64-O3 -march=znver12004006008001000SE +/- 0.52, N = 3SE +/- 6.87, N = 3SE +/- 1.19, N = 3SE +/- 5.42, N = 3SE +/- 1.15, N = 3SE +/- 0.76, N = 3SE +/- 0.70, N = 3SE +/- 0.57, N = 3SE +/- 0.93, N = 3SE +/- 0.92, N = 31114.031115.361110.921022.651096.251042.521093.231032.291004.30982.631. (CC) gcc options: -O3 -mavx2

ebizzy

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3-O3 -march=x86-64-O3 -march=znver190K180K270K360K450KSE +/- 6544.76, N = 4SE +/- 4344.35, N = 3SE +/- 4432.38, N = 3SE +/- 5536.66, N = 6SE +/- 6365.94, N = 4SE +/- 4952.37, N = 3SE +/- 6656.12, N = 6SE +/- 6377.52, N = 4SE +/- 9800.19, N = 6SE +/- 7421.08, N = 64082784068024085093829603935023878833971893860143718343889231. (CC) gcc options: -pthread -lpthread -O3

C-Ray

Total Time

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total Time-O3 -march=x86-64-O3 -march=znver148121620SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 314.7214.6213.6813.629.198.3411.209.639.168.181. (CC) gcc options: -lm -lpthread -O3

Stockfish

Total Time

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgms, Fewer Is BetterStockfish 2014-11-26Total Time-O3 -march=x86-64-O3 -march=znver18001600240032004000SE +/- 2.96, N = 3SE +/- 12.02, N = 3SE +/- 1.76, N = 3SE +/- 5.03, N = 3SE +/- 4.73, N = 3SE +/- 23.13, N = 3SE +/- 15.94, N = 3SE +/- 6.00, N = 3SE +/- 3.71, N = 3SE +/- 6.12, N = 337043671371036703914392637543826380439311. (CXX) g++ options: -lpthread -O3 -fno-exceptions -fno-rtti -ansi -pedantic -msse -msse3 -mpopcnt -flto

Bullet Physics Engine

Test: Raytests

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Raytests-O3 -march=x86-64-O3 -march=znver10.64351.2871.93052.5743.2175SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 32.852.792.862.782.772.692.712.842.682.821. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 3000 Fall

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 Fall-O3 -march=x86-64-O3 -march=znver11.03952.0793.11854.1585.1975SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 34.624.534.624.534.594.474.514.444.514.481. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 1000 Stack

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 Stack-O3 -march=x86-64-O3 -march=znver11.21282.42563.63844.85126.064SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 35.335.145.275.105.395.165.175.135.235.181. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 1000 Convex

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 Convex-O3 -march=x86-64-O3 -march=znver11.21952.4393.65854.8786.0975SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 34.894.694.844.644.804.504.745.414.735.421. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 136 Ragdolls

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 136 Ragdolls-O3 -march=x86-64-O3 -march=znver10.66831.33662.00492.67323.3415SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 32.972.932.962.932.872.812.862.782.882.821. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: Prim Trimesh

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Prim Trimesh-O3 -march=x86-64-O3 -march=znver10.2250.450.6750.91.125SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 30.990.991.000.990.960.940.930.940.940.951. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: Convex Trimesh

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Convex Trimesh-O3 -march=x86-64-O3 -march=znver10.2790.5580.8371.1161.395SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.191.171.201.161.181.131.151.231.161.241. (CXX) g++ options: -O3 -rdynamic -lglut -lGL -lGLU

FLAC Audio Encoding

WAV To FLAC

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLAC-O3 -march=x86-64-O3 -march=znver1246810SE +/- 0.00, N = 5SE +/- 0.06, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 56.775.726.775.695.726.155.926.145.936.151. (CXX) g++ options: -O3 -fvisibility=hidden -logg -lm

LAME MP3 Encoding

WAV To MP3

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3-O3 -march=x86-64-O3 -march=znver13691215SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.02, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 59.6210.749.7510.929.779.529.729.509.739.321. (CC) gcc options: -O3 -ffast-math -funroll-loops -fschedule-insns2 -fbranch-count-reg -fforce-addr -pipe -lm

WavPack Audio Encoding

WAV To WavPack

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgSeconds, Fewer Is BetterWavPack Audio Encoding 5.1WAV To WavPack-O3 -march=x86-64-O3 -march=znver1246810SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 56.506.446.526.456.446.396.456.396.456.391. (CC) gcc options: -O3 -lm

Tachyon

Total Time

Clang 4.0Clang SVNGCC 6.3.0OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total Time-O3 -march=x86-64-O3 -march=znver1246810SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.08, N = 3SE +/- 0.06, N = 35.235.255.295.297.367.281. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread

libjpeg-turbo tjbench

Test: Decompression Throughput

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgMegapixels/sec, More Is Betterlibjpeg-turbo tjbench 1.5.1Test: Decompression Throughput-O3 -march=x86-64-O3 -march=znver14080120160200SE +/- 0.04, N = 3SE +/- 0.06, N = 3SE +/- 0.11, N = 3SE +/- 0.07, N = 3SE +/- 0.02, N = 3SE +/- 1.53, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3163.71166.39161.78165.30163.54165.82165.77167.02165.61163.541. (CC) gcc options: -O3 -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Normal Load - Mode: Read Write

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.6.3Scaling: Buffer Test - Test: Normal Load - Mode: Read Write-O3 -march=x86-64-O3 -march=znver1400800120016002000SE +/- 33.75, N = 6SE +/- 30.13, N = 3SE +/- 47.88, N = 6SE +/- 52.04, N = 6SE +/- 83.58, N = 6SE +/- 69.43, N = 6SE +/- 115.54, N = 6SE +/- 144.73, N = 6SE +/- 78.24, N = 6SE +/- 102.75, N = 61899.661938.551865.091813.341567.111683.621453.171119.321137.96904.861. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -fpic -lpgcommon -lpgport -lrt -lcrypt -ldl -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Single Thread - Mode: Read Write

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.6.3Scaling: Buffer Test - Test: Single Thread - Mode: Read Write-O3 -march=x86-64-O3 -march=znver150100150200250SE +/- 0.18, N = 3SE +/- 0.63, N = 3SE +/- 0.39, N = 3SE +/- 1.25, N = 3SE +/- 3.41, N = 3SE +/- 3.62, N = 3SE +/- 7.54, N = 6SE +/- 20.38, N = 6SE +/- 15.80, N = 6SE +/- 21.89, N = 6226.16226.21226.04224.89213.80215.46196.49160.27170.67144.571. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -fpic -lpgcommon -lpgport -lrt -lcrypt -ldl -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.6.3Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write-O3 -march=x86-64-O3 -march=znver1400800120016002000SE +/- 7.18, N = 3SE +/- 36.47, N = 6SE +/- 30.24, N = 3SE +/- 30.52, N = 4SE +/- 135.65, N = 6SE +/- 106.64, N = 6SE +/- 71.53, N = 6SE +/- 53.51, N = 6SE +/- 58.21, N = 6SE +/- 43.17, N = 62021.122061.891938.931875.271700.041403.151009.23958.07954.57987.101. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -fpic -lpgcommon -lpgport -lrt -lcrypt -ldl -lm

Redis

Test: LPOP

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: LPOP-O3 -march=x86-64-O3 -march=znver1400K800K1200K1600K2000KSE +/- 21807.56, N = 3SE +/- 5577.00, N = 3SE +/- 13701.81, N = 3SE +/- 13594.16, N = 3SE +/- 36932.04, N = 3SE +/- 35449.52, N = 6SE +/- 21789.08, N = 3SE +/- 39319.57, N = 6SE +/- 21154.00, N = 3SE +/- 37770.88, N = 31890860.671908429.461968693.381960971.502022888.712040441.772007166.132045776.021962522.211955849.541. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

Redis

Test: GET

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: GET-O3 -march=x86-64-O3 -march=znver1400K800K1200K1600K2000KSE +/- 29446.39, N = 5SE +/- 9354.06, N = 3SE +/- 15420.28, N = 3SE +/- 27406.80, N = 3SE +/- 25624.27, N = 3SE +/- 36741.38, N = 3SE +/- 39927.16, N = 6SE +/- 34137.72, N = 6SE +/- 31907.52, N = 4SE +/- 28926.92, N = 51900142.801896426.081953368.381973143.291965296.752024240.252039849.732026468.131959467.752020214.601. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

Redis

Test: SET

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: SET-O3 -march=x86-64-O3 -march=znver1300K600K900K1200K1500KSE +/- 4364.72, N = 3SE +/- 8135.91, N = 3SE +/- 8018.20, N = 3SE +/- 23768.12, N = 6SE +/- 20122.37, N = 6SE +/- 18650.68, N = 6SE +/- 24800.25, N = 3SE +/- 9173.79, N = 3SE +/- 21926.88, N = 6SE +/- 20903.17, N = 61415121.331400655.091385134.041413713.291449577.001455351.921433512.501452900.961416798.481422985.001. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

Hierarchical INTegration

Test: FLOAT

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgQUIPs, More Is BetterHierarchical INTegration 1.0Test: FLOAT-O3 -march=x86-64-O3 -march=znver170M140M210M280M350MSE +/- 176504.67, N = 3SE +/- 359206.87, N = 3SE +/- 120507.74, N = 3SE +/- 20484.23, N = 3SE +/- 414269.32, N = 3SE +/- 55265.16, N = 3SE +/- 168070.96, N = 3SE +/- 334577.77, N = 3SE +/- 475847.52, N = 3SE +/- 241826.97, N = 3301996595.09301686748.92301795000.85300351844.05304975438.99308730450.23306015412.46309323159.03307840753.35309230599.881. (CC) gcc options: -O3 -lm

Apache Benchmark

Static Web Page Serving

Clang 4.0Clang SVNGCC 6.3.0GCC 7.1.0GCC 8.0.0OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page Serving-O3 -march=x86-64-O3 -march=znver16K12K18K24K30KSE +/- 320.32, N = 3SE +/- 228.50, N = 3SE +/- 179.13, N = 3SE +/- 44.40, N = 3SE +/- 359.02, N = 3SE +/- 57.45, N = 3SE +/- 100.46, N = 3SE +/- 102.75, N = 3SE +/- 382.06, N = 3SE +/- 26.48, N = 327221.4126808.6526994.8027700.9326067.5925746.8825648.4725688.5125669.3825831.381. (CC) gcc options: -shared -fPIC -pthread -O3

Phoronix Test Suite v10.8.5