Skylake Xeon GCC vs. Clang Compiler Optimization Tests

Intel Broadwell-DE 1587

HTML result view exported from: https://openbenchmarking.org/result/1605174-GA-1602297GA34.

Skylake Xeon GCC vs. Clang Compiler Optimization TestsProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores)MSI C236A WORKSTATION (MS-7998) v1.0Intel Sky Lake16384MB120GB Samsung SSD 850MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MBRealtek ALC1150DELL P2415QIntel ConnectionUbuntu 16.044.4.0-7-generic (x86_64)Unity 7.4.0X Server 1.17.3radeon 7.6.14.1 Mesa 11.1.2 Gallium 0.4GCC 5.3.1 20160222ext43840x2160Clang 3.8.0-+rc2-1~exp1ubuntu206/56 @ 2.30GHz (32 Cores)Supermicro X10SDV-7TP8F v1.01Intel Xeon E7 v4/Xeon2 x 8192 MB DDR4-2133MHz Micron240GB Toshiba MKNSSDAT240GB-DXASPEED ASPEED FamilyIntel Connection X552 10 GbE SFP+Red Hat Enterprise Linux 7.23.10.0-327.el7.x86_64 (x86_64)GCC 4.8.5 20150623xfs1024x768OpenBenchmarking.orgCompiler Details- GCC: -O0: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -O1: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -O2: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -O2 -march=native: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -O3: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -O3 -march=native: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC: -Ofast -march=native: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --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 --enable-plugin --enable-shared --enable-threads=posix --host=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-tune=generic -v - GCC 4.8.5 20150623: --build=x86_64-redhat-linux --disable-libgcj --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-indirect-function --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=x86-64 --with-linker-hash-style=gnu --with-tune=genericProcessor Details- GCC: -O0: Scaling Governor: intel_pstate powersave- GCC: -O1: Scaling Governor: intel_pstate powersave- GCC: -O2: Scaling Governor: intel_pstate powersave- GCC: -O2 -march=native: Scaling Governor: intel_pstate powersave- GCC: -O3: Scaling Governor: intel_pstate powersave- GCC: -O3 -march=native: Scaling Governor: intel_pstate powersave- GCC: -Ofast -march=native: Scaling Governor: intel_pstate powersave- Clang: -O0: Scaling Governor: intel_pstate powersave- Clang: -O1: Scaling Governor: intel_pstate powersave- Clang: -O2: Scaling Governor: intel_pstate powersave- Clang: -O2 -march=native: Scaling Governor: intel_pstate powersave- Clang: -O3: Scaling Governor: intel_pstate powersave- Clang: -O3 -march=native: Scaling Governor: intel_pstate powersave- Clang: -Ofast -march=native: Scaling Governor: intel_pstate powersave- GCC 4.8.5 20150623: Scaling Governor: intel_pstate performanceSystem Details- GCC 4.8.5 20150623: SELinux: Enabled.

Skylake Xeon GCC vs. Clang Compiler Optimization Testshmmer: Pfam Database Searchgraphics-magick: Blurgraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solverbuild-apache: Time To Compilebuild-imagemagick: Time To Compilebuild-php: Time To Compilec-ray: Total Timeencode-flac: WAV To FLACencode-mp3: WAV To MP3redis: GETredis: SEThint: FLOATGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 2015062326.8910713622496.0611.0812.237.2761.5337.5630.501663526.961189110.86127505415.488.86170226921302.8317.0024.9613.3543.155.9713.252953039.462175575.75295705864.248.351692131002429.3723.1239.6719.1238.195.2212.903007445.962136957.54370257620.558.351732281032653.0722.8437.5718.6827.834.8711.992951037.212076614.15408904948.748.171702281032485.1424.8849.7021.2119.655.1012.102910194.792183433.83381719210.598.161782341042689.9125.1748.9721.6814.604.8810.693116395.332104521.04407575756.088.001772371042757.7725.1649.9921.7513.924.899.513023321.582243907.58392373251.2023.237510022325.2710.939.786.4457.0947.9531.951864548.291263741.85129742642.758.97150192891931.0618.8531.0713.5832.346.9712.043067218.961977929.48335679881.798.291501931002036.0022.3636.5316.9637.296.6612.172962310.252127555.19387996153.748.29150196991923.6423.1038.4517.9236.225.2612.033102899.832064604.79288801639.398.401501921002001.7722.8349.5917.5925.616.7112.162923813.881962280.52386593550.688.291531961021962.7123.0749.6317.9025.205.1111.662862656.752037699.96296846752.578.121531981012114.8023.1550.0217.9520.645.0511.103100373.252078148.71295042490.709.14113145591343.8429.8732.2619.1910.1011.9021.711363657.211078008.79241905166.12OpenBenchmarking.org

Timed HMMer Search

Pfam Database Search

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623612182430SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.03, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.09, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 326.898.868.358.358.178.168.0023.238.978.298.298.408.298.129.14-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O21. (CC) gcc options: -pthread -lhmmer -lsquid -lm

GraphicsMagick

Operation: Blur

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 201506234080120160200SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, 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 +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 310717016917317017817775150150150150153153113-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-std=gnu99 -O21. (CC) gcc options: -fopenmp -pthread -lz -lm -lgomp -lpthread

GraphicsMagick

Operation: HWB Color Space

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 2015062350100150200250SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.58, N = 3SE +/- 0.00, N = 3SE +/- 0.67, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3136226213228228234237100192193196192196198145-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-std=gnu99 -O21. (CC) gcc options: -fopenmp -pthread -lz -lm -lgomp -lpthread

GraphicsMagick

Operation: Local Adaptive Thresholding

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 2015062320406080100SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3229210010310310410422891009910010210159-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O0 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O1 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O2 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-O3 -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-Ofast -march=native -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2-std=gnu99 -O21. (CC) gcc options: -fopenmp -pthread -lz -lm -lgomp -lpthread

Himeno Benchmark

Poisson Pressure Solver

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 201506236001200180024003000SE +/- 1.58, N = 3SE +/- 7.15, N = 3SE +/- 2.14, N = 3SE +/- 5.04, N = 3SE +/- 2.83, N = 3SE +/- 13.72, N = 3SE +/- 8.78, N = 3SE +/- 4.31, N = 3SE +/- 3.51, N = 3SE +/- 5.22, N = 3SE +/- 0.78, N = 3SE +/- 1.61, N = 3SE +/- 14.49, N = 3SE +/- 3.27, N = 3SE +/- 3.00, N = 3496.061302.832429.372653.072485.142689.912757.77325.271931.062036.001923.642001.771962.712114.801343.84-O0-O1-O2-O2 -march=native-march=native-Ofast -march=native-O1-O2-O2 -march=native-march=native-Ofast -march=native1. (CC) gcc options: -O3 -mavx2

Timed Apache Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Apache Compilation 2.4.7Time To CompileGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623714212835SE +/- 0.05, N = 3SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.07, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.12, N = 3SE +/- 0.03, N = 3SE +/- 0.06, N = 3SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 311.0817.0023.1222.8424.8825.1725.1610.9318.8522.3623.1022.8323.0723.1529.87

Timed ImageMagick Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.9.0Time To CompileGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 201506231122334455SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.07, N = 3SE +/- 0.02, N = 3SE +/- 0.18, N = 3SE +/- 0.06, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 3SE +/- 0.17, N = 3SE +/- 0.12, N = 3SE +/- 0.05, N = 3SE +/- 0.10, N = 3SE +/- 0.21, N = 312.2324.9639.6737.5749.7048.9749.999.7831.0736.5338.4549.5949.6350.0232.26

Timed PHP Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623510152025SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.08, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 37.2713.3519.1218.6821.2121.6821.756.4413.5816.9617.9217.5917.9017.9519.19-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O21. (CC) gcc options: -pedantic -ldl -lz -lm

C-Ray

Total Time

OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 201506231428425670SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.05, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 361.5343.1538.1927.8319.6514.6013.9257.0932.3437.2936.2225.6125.2020.6410.10-O0-O1-O2-O2 -march=native-march=native-Ofast -march=native-O0-O1-O2-O2 -march=native-march=native-Ofast -march=native1. (CC) gcc options: -lm -lpthread -O3

FLAC Audio Encoding

WAV To FLAC

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLACGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 201506231122334455SE +/- 0.09, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 5SE +/- 0.02, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.14, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.04, N = 5SE +/- 0.02, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 537.565.975.224.875.104.884.8947.956.976.665.266.715.115.0511.90-O0 -fvisibility=hidden -logg-O1 -fvisibility=hidden -logg-O0 -logg-O1 -logg-O2 -logg-O2 -march=native -logg-O3 -logg-O2 -fvisibility=hidden1. (CXX) g++ options: -lm

LAME MP3 Encoding

WAV To MP3

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3GCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623714212835SE +/- 0.07, N = 5SE +/- 0.00, N = 5SE +/- 0.03, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.02, N = 5SE +/- 0.01, N = 5SE +/- 0.09, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.03, N = 5SE +/- 0.02, N = 5SE +/- 0.02, N = 5SE +/- 0.01, N = 5SE +/- 0.08, N = 530.5013.2512.9011.9912.1010.699.5131.9512.0412.1712.0312.1611.6611.1021.71-O0 -lncurses-O1 -lncurses-O2 -lncurses-O2 -march=native -lncurses-O3 -lncurses-O3 -march=native -lncurses-Ofast -march=native -lncurses-O0 -lncurses-O1 -lncurses-O2 -lncurses-O2 -march=native -lncurses-O3 -lncurses-O3 -march=native -lncurses-Ofast -march=native -lncurses-O3 -fomit-frame-pointer -ffast-math1. (CC) gcc options: -pipe -lm

Redis

Test: GET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: GETGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623700K1400K2100K2800K3500KSE +/- 38735.61, N = 6SE +/- 149849.11, N = 6SE +/- 115634.67, N = 6SE +/- 147992.17, N = 6SE +/- 114387.02, N = 6SE +/- 112169.48, N = 6SE +/- 119850.30, N = 6SE +/- 5812.17, N = 3SE +/- 114553.51, N = 6SE +/- 107422.82, N = 6SE +/- 28358.49, N = 3SE +/- 100673.54, N = 6SE +/- 117026.48, N = 6SE +/- 43230.51, N = 5SE +/- 3767.85, N = 31663526.962953039.463007445.962951037.212910194.793116395.333023321.581864548.293067218.962962310.253102899.832923813.882862656.753100373.251363657.21-std=gnu99 -pipe -g3 -O3 -funroll-loops1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

Redis

Test: SET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: SETGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 20150623500K1000K1500K2000K2500KSE +/- 18888.09, N = 6SE +/- 42146.85, N = 3SE +/- 42585.88, N = 3SE +/- 59339.63, N = 6SE +/- 5504.91, N = 3SE +/- 62171.83, N = 6SE +/- 9379.40, N = 3SE +/- 18772.48, N = 5SE +/- 89985.99, N = 6SE +/- 48427.64, N = 6SE +/- 37304.29, N = 3SE +/- 78877.64, N = 6SE +/- 55315.76, N = 6SE +/- 51322.74, N = 6SE +/- 4367.75, N = 31189110.862175575.752136957.542076614.152183433.832104521.042243907.581263741.851977929.482127555.192064604.791962280.522037699.962078148.711078008.79-std=gnu99 -pipe -g3 -O3 -funroll-loops1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

Hierarchical INTegration

Test: FLOAT

OpenBenchmarking.orgQUIPs, More Is BetterHierarchical INTegration 1.0Test: FLOATGCC: -O0GCC: -O1GCC: -O2GCC: -O2 -march=nativeGCC: -O3GCC: -O3 -march=nativeGCC: -Ofast -march=nativeClang: -O0Clang: -O1Clang: -O2Clang: -O2 -march=nativeClang: -O3Clang: -O3 -march=nativeClang: -Ofast -march=nativeGCC 4.8.5 2015062390M180M270M360M450MSE +/- 333507.82, N = 3SE +/- 261713.92, N = 3SE +/- 807099.70, N = 3SE +/- 839964.65, N = 3SE +/- 705518.12, N = 3SE +/- 469746.65, N = 3SE +/- 623958.85, N = 3SE +/- 202624.96, N = 3SE +/- 327258.73, N = 3SE +/- 684099.81, N = 3SE +/- 169985.20, N = 3SE +/- 732618.55, N = 3SE +/- 107212.94, N = 3SE +/- 189622.82, N = 3SE +/- 174524.26, N = 3127505415.48295705864.24370257620.55408904948.74381719210.59407575756.08392373251.20129742642.75335679881.79387996153.74288801639.39386593550.68296846752.57295042490.70241905166.12-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O0-O1-O2-O2 -march=native-O3-O3 -march=native-Ofast -march=native-O3 -march=native1. (CC) gcc options: -lm

Phoronix Test Suite v10.8.4