GCC 4.9 Snapshot Compiler Flag Tests GCC 4.9 compiler optimization tests of an Intel Core i7 Haswell CPU and applying different CFLAGS/CXXFLAGS to look at impact of core-avx2 CPU optimizations and other x86_64 -march= options. Benchmarks by Michael Larabel.
HTML result view exported from: https://openbenchmarking.org/result/1308319-SO-GCC49SNAP71&sor .
GCC 4.9 Snapshot Compiler Flag Tests Processor Motherboard Chipset Memory Disk Graphics Audio Network OS Kernel Desktop Display Server Display Driver OpenGL Compiler File-System Screen Resolution Core-AVX2 Core-AVX-I Corei7-AVX Corei7 Core2 Nocona Intel Core i7-4900MQ @ 2.80GHz (8 Cores) System76 Gazelle Professional Intel Xeon E3-1200 v3/4th 8192MB 120GB INTEL SSDSC2CW12 Intel 4th Gen Core IGP (1300MHz) Intel Haswell HDMI Realtek RTL8111/8168/8411 + Intel Centrino Advanced-N 6235 Ubuntu 13.10 3.11.0-4-generic (x86_64) Unity 7.1.0 X Server 1.14.2.901 (1.14.3 RC 1) intel 2.21.14 3.1 Mesa 9.2.0 GCC 4.9.0 20130731 ext4 1920x1080 OpenBenchmarking.org Compiler Details - --build=x86_64-linux-gnu --disable-browser-plugin --disable-nls --disable-werror --enable-checking=yes --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-objc-gc --enable-plugin --enable-shared --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-snap-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-snap-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-snap-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v Processor Details - Scaling Governor: acpi-cpufreq ondemand
GCC 4.9 Snapshot Compiler Flag Tests scimark2: Monte Carlo scimark2: Fast Fourier Transform scimark2: Sparse Matrix Multiply scimark2: Dense LU Matrix Factorization scimark2: Jacobi Successive Over-Relaxation ttsiod-renderer: Phong Rendering With Soft-Shadow Mapping x264: H.264 Video Encoding graphics-magick: Blur graphics-magick: Sharpen graphics-magick: Resizing graphics-magick: HWB Color Space graphics-magick: Local Adaptive Thresholding himeno: Poisson Pressure Solver c-ray: Total Time primesieve: 1e12 Prime Number Generation smallpt: Global Illumination Renderer; 100 Samples encode-flac: WAV To FLAC encode-mp3: WAV To MP3 encode-ogg: WAV To Ogg ffmpeg: H.264 HD To NTSC DV n-queens: Elapsed Time apache: Static Web Page Serving Core-AVX2 Core-AVX-I Corei7-AVX Corei7 Core2 Nocona 595.70 335.89 2332.25 2783.23 1142.92 133.95 162.96 149 126 180 200 116 1770.48 19.71 93.19 29 5.31 14.30 7.06 13.17 42.54 31291.52 595.28 329.12 2184.67 2794.16 1142.92 133.36 163.77 149 116 176 201 116 1868.47 26.38 93.17 29 5.59 14.08 7.06 13.31 44.51 31007.19 594.05 315.45 2322.34 2786.85 1142.92 132.85 162.86 149 116 176 201 116 1803.82 26.40 93.15 29 5.59 14.07 7.06 13.37 44.50 30875.41 596.52 316.62 2388.35 2842.55 1140.79 150.07 162.76 149 116 175 200 115 1746.95 26.52 93.14 30 5.09 12.57 7.08 13.50 44.54 30666.53 595.70 319.57 2379.68 2853.98 1140.79 146.09 162.10 149 116 176 201 115 1747.23 26.53 93.15 30 5.21 12.88 7.06 13.33 44.51 31064.17 698.37 318.08 2346.98 2589.06 1140.79 144.87 162.14 148 115 172 198 114 1695.27 26.66 93.31 30 5.29 12.64 7.07 13.30 45.76 29830.02 OpenBenchmarking.org
SciMark Computational Test: Monte Carlo OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Monte Carlo Nocona Corei7 Core2 Core-AVX2 Core-AVX-I Corei7-AVX 150 300 450 600 750 SE +/- 0.66, N = 4 SE +/- 0.00, N = 4 SE +/- 0.48, N = 4 SE +/- 0.48, N = 4 SE +/- 0.41, N = 4 SE +/- 0.47, N = 4 698.37 596.52 595.70 595.70 595.28 594.05 -march=nocona -march=corei7 -march=core2 -march=core-avx2 -march=core-avx-i -march=corei7-avx 1. (CXX) g++ options: -O3
SciMark Computational Test: Fast Fourier Transform OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Fast Fourier Transform Core-AVX2 Core-AVX-I Core2 Nocona Corei7 Corei7-AVX 70 140 210 280 350 SE +/- 1.12, N = 4 SE +/- 1.63, N = 4 SE +/- 0.57, N = 4 SE +/- 0.48, N = 4 SE +/- 1.20, N = 4 SE +/- 0.73, N = 4 335.89 329.12 319.57 318.08 316.62 315.45 -march=core-avx2 -march=core-avx-i -march=core2 -march=nocona -march=corei7 -march=corei7-avx 1. (CXX) g++ options: -O3
SciMark Computational Test: Sparse Matrix Multiply OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Sparse Matrix Multiply Corei7 Core2 Nocona Core-AVX2 Corei7-AVX Core-AVX-I 500 1000 1500 2000 2500 SE +/- 2.84, N = 4 SE +/- 3.31, N = 4 SE +/- 32.43, N = 4 SE +/- 3.18, N = 4 SE +/- 3.15, N = 4 SE +/- 9.72, N = 4 2388.35 2379.68 2346.98 2332.25 2322.34 2184.67 -march=corei7 -march=core2 -march=nocona -march=core-avx2 -march=corei7-avx -march=core-avx-i 1. (CXX) g++ options: -O3
SciMark Computational Test: Dense LU Matrix Factorization OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Dense LU Matrix Factorization Core2 Corei7 Core-AVX-I Corei7-AVX Core-AVX2 Nocona 600 1200 1800 2400 3000 SE +/- 4.81, N = 4 SE +/- 1.89, N = 4 SE +/- 3.50, N = 4 SE +/- 1.82, N = 4 SE +/- 3.48, N = 4 SE +/- 12.57, N = 2 2853.98 2842.55 2794.16 2786.85 2783.23 2589.06 -march=core2 -march=corei7 -march=core-avx-i -march=corei7-avx -march=core-avx2 -march=nocona 1. (CXX) g++ options: -O3
SciMark Computational Test: Jacobi Successive Over-Relaxation OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Jacobi Successive Over-Relaxation Corei7-AVX Core-AVX-I Core-AVX2 Nocona Core2 Corei7 200 400 600 800 1000 SE +/- 1.07, N = 4 SE +/- 1.07, N = 4 SE +/- 1.07, N = 4 SE +/- 1.07, N = 4 SE +/- 1.07, N = 4 SE +/- 1.07, N = 4 1142.92 1142.92 1142.92 1140.79 1140.79 1140.79 -march=corei7-avx -march=core-avx-i -march=core-avx2 -march=nocona -march=core2 -march=corei7 1. (CXX) g++ options: -O3
TTSIOD 3D Renderer Phong Rendering With Soft-Shadow Mapping OpenBenchmarking.org FPS, More Is Better TTSIOD 3D Renderer 2.2z Phong Rendering With Soft-Shadow Mapping Corei7 Core2 Nocona Core-AVX2 Core-AVX-I Corei7-AVX 30 60 90 120 150 SE +/- 0.19, N = 3 SE +/- 0.25, N = 3 SE +/- 0.90, N = 3 SE +/- 0.65, N = 3 SE +/- 0.40, N = 3 SE +/- 0.31, N = 3 150.07 146.09 144.87 133.95 133.36 132.85 -march=corei7 -march=core2 -march=nocona -march=core-avx2 -march=core-avx-i -march=corei7-avx 1. (CXX) g++ options: -O3 -fomit-frame-pointer -ffast-math -mtune=native -flto -msse -mrecip -mfpmath=sse -msse2 -mssse3 -lSDL -lstdc++
x264 H.264 Video Encoding OpenBenchmarking.org Frames Per Second, More Is Better x264 2013-06-08 H.264 Video Encoding Core-AVX-I Core-AVX2 Corei7-AVX Corei7 Nocona Core2 40 80 120 160 200 SE +/- 0.36, N = 5 SE +/- 0.32, N = 5 SE +/- 0.58, N = 5 SE +/- 0.56, N = 5 SE +/- 0.30, N = 5 SE +/- 0.45, N = 5 163.77 162.96 162.86 162.76 162.14 162.10 -march=core-avx-i -march=core-avx2 -march=corei7-avx -march=corei7 -march=nocona -march=core2 1. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize
GraphicsMagick Operation: Blur OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Blur Core2 Corei7 Corei7-AVX Core-AVX-I Core-AVX2 Nocona 30 60 90 120 150 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 149 149 149 149 149 148 -march=core2 -march=corei7 -march=corei7-avx -march=core-avx-i -march=core-avx2 -march=nocona 1. (CC) gcc options: -std=gnu99 -fopenmp -O3 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lgomp -lpthread
GraphicsMagick Operation: Sharpen OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Sharpen Core-AVX2 Core2 Corei7 Corei7-AVX Core-AVX-I Nocona 30 60 90 120 150 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 126 116 116 116 116 115 -march=core-avx2 -march=core2 -march=corei7 -march=corei7-avx -march=core-avx-i -march=nocona 1. (CC) gcc options: -std=gnu99 -fopenmp -O3 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lgomp -lpthread
GraphicsMagick Operation: Resizing OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Resizing Core-AVX2 Core2 Corei7-AVX Core-AVX-I Corei7 Nocona 40 80 120 160 200 SE +/- 0.67, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 180 176 176 176 175 172 -march=core-avx2 -march=core2 -march=corei7-avx -march=core-avx-i -march=corei7 -march=nocona 1. (CC) gcc options: -std=gnu99 -fopenmp -O3 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lgomp -lpthread
GraphicsMagick Operation: HWB Color Space OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: HWB Color Space Core2 Corei7-AVX Core-AVX-I Corei7 Core-AVX2 Nocona 40 80 120 160 200 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 201 201 201 200 200 198 -march=core2 -march=corei7-avx -march=core-avx-i -march=corei7 -march=core-avx2 -march=nocona 1. (CC) gcc options: -std=gnu99 -fopenmp -O3 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lgomp -lpthread
GraphicsMagick Operation: Local Adaptive Thresholding OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Local Adaptive Thresholding Corei7-AVX Core-AVX-I Core-AVX2 Core2 Corei7 Nocona 30 60 90 120 150 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 116 116 116 115 115 114 -march=corei7-avx -march=core-avx-i -march=core-avx2 -march=core2 -march=corei7 -march=nocona 1. (CC) gcc options: -std=gnu99 -fopenmp -O3 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lgomp -lpthread
Himeno Benchmark Poisson Pressure Solver OpenBenchmarking.org MFLOPS, More Is Better Himeno Benchmark 3.0 Poisson Pressure Solver Core-AVX-I Corei7-AVX Core-AVX2 Core2 Corei7 Nocona 400 800 1200 1600 2000 SE +/- 0.59, N = 3 SE +/- 24.88, N = 6 SE +/- 29.31, N = 4 SE +/- 1.11, N = 3 SE +/- 1.79, N = 3 SE +/- 0.23, N = 3 1868.47 1803.82 1770.48 1747.23 1746.95 1695.27 -march=core-avx-i -march=corei7-avx -march=core-avx2 -march=core2 -march=corei7 -march=nocona 1. (CC) gcc options: -O3
C-Ray Total Time OpenBenchmarking.org Seconds, Fewer Is Better C-Ray 1.1 Total Time Core-AVX2 Core-AVX-I Corei7-AVX Corei7 Core2 Nocona 6 12 18 24 30 SE +/- 0.01, N = 3 SE +/- 0.01, N = 3 SE +/- 0.02, N = 3 SE +/- 0.01, N = 3 SE +/- 0.02, N = 3 SE +/- 0.02, N = 3 19.71 26.38 26.40 26.52 26.53 26.66 -march=core-avx2 -march=core-avx-i -march=corei7-avx -march=corei7 -march=core2 -march=nocona 1. (CC) gcc options: -lm -lpthread -O3
Primesieve 1e12 Prime Number Generation OpenBenchmarking.org Seconds, Fewer Is Better Primesieve 4.2 1e12 Prime Number Generation Corei7 Corei7-AVX Core2 Core-AVX-I Core-AVX2 Nocona 20 40 60 80 100 SE +/- 0.37, N = 3 SE +/- 0.35, N = 3 SE +/- 0.41, N = 3 SE +/- 0.43, N = 3 SE +/- 0.44, N = 3 SE +/- 0.33, N = 3 93.14 93.15 93.15 93.17 93.19 93.31 1. (CXX) g++ options: -O2 -fopenmp
Smallpt Global Illumination Renderer; 100 Samples OpenBenchmarking.org Seconds, Fewer Is Better Smallpt 1.0 Global Illumination Renderer; 100 Samples Core-AVX2 Core-AVX-I Corei7-AVX Corei7 Core2 Nocona 7 14 21 28 35 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 29 29 29 30 30 30 -march=core-avx2 -march=core-avx-i -march=corei7-avx -march=corei7 -march=core2 -march=nocona 1. (CXX) g++ options: -fopenmp -O3
FLAC Audio Encoding WAV To FLAC OpenBenchmarking.org Seconds, Fewer Is Better FLAC Audio Encoding 1.3.0 WAV To FLAC Corei7 Core2 Nocona Core-AVX2 Core-AVX-I Corei7-AVX 1.2578 2.5156 3.7734 5.0312 6.289 SE +/- 0.00, N = 5 SE +/- 0.00, N = 5 SE +/- 0.00, N = 5 SE +/- 0.00, N = 5 SE +/- 0.00, N = 5 SE +/- 0.00, N = 5 5.09 5.21 5.29 5.31 5.59 5.59 -march=corei7 -march=core2 -march=nocona -march=core-avx2 -march=core-avx-i -march=corei7-avx 1. (CXX) g++ options: -O3 -fvisibility=hidden -logg -lm
LAME MP3 Encoding WAV To MP3 OpenBenchmarking.org Seconds, Fewer Is Better LAME MP3 Encoding 3.99.3 WAV To MP3 Corei7 Nocona Core2 Corei7-AVX Core-AVX-I Core-AVX2 4 8 12 16 20 SE +/- 0.00, N = 5 SE +/- 0.01, N = 5 SE +/- 0.01, N = 5 SE +/- 0.00, N = 5 SE +/- 0.01, N = 5 SE +/- 0.02, N = 5 12.57 12.64 12.88 14.07 14.08 14.30 -march=corei7 -march=nocona -march=core2 -march=corei7-avx -march=core-avx-i -march=core-avx2 1. (CC) gcc options: -pipe -O3 -lm
Ogg Encoding WAV To Ogg OpenBenchmarking.org Seconds, Fewer Is Better Ogg Encoding 1.3.0 WAV To Ogg Core-AVX2 Core-AVX-I Corei7-AVX Core2 Nocona Corei7 2 4 6 8 10 SE +/- 0.00, N = 5 SE +/- 0.01, N = 5 SE +/- 0.00, N = 5 SE +/- 0.01, N = 5 SE +/- 0.01, N = 5 SE +/- 0.01, N = 5 7.06 7.06 7.06 7.06 7.07 7.08 -march=core-avx2 -march=core-avx-i -march=corei7-avx -march=core2 -march=nocona -march=corei7 1. (CC) gcc options: -O2 -ffast-math -fsigned-char -O3 -lm -logg
FFmpeg H.264 HD To NTSC DV OpenBenchmarking.org Seconds, Fewer Is Better FFmpeg 2.0 H.264 HD To NTSC DV Core-AVX2 Nocona Core-AVX-I Core2 Corei7-AVX Corei7 3 6 9 12 15 SE +/- 0.05, N = 3 SE +/- 0.04, N = 3 SE +/- 0.04, N = 3 SE +/- 0.03, N = 3 SE +/- 0.07, N = 3 SE +/- 0.06, N = 3 13.17 13.30 13.31 13.33 13.37 13.50 -march=core-avx2 -march=nocona -march=core-avx-i -march=core2 -march=corei7-avx -march=corei7 1. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2 -O3 -std=c99 -fomit-frame-pointer -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -MMD -MF -MT
N-Queens Elapsed Time OpenBenchmarking.org Seconds, Fewer Is Better N-Queens 1.0 Elapsed Time Core-AVX2 Corei7-AVX Core-AVX-I Core2 Corei7 Nocona 10 20 30 40 50 SE +/- 0.01, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.02, N = 3 SE +/- 0.00, N = 3 42.54 44.50 44.51 44.51 44.54 45.76 -march=core-avx2 -march=corei7-avx -march=core-avx-i -march=core2 -march=corei7 -march=nocona 1. (CC) gcc options: -static -fopenmp -O3
Apache Benchmark Static Web Page Serving OpenBenchmarking.org Requests Per Second, More Is Better Apache Benchmark 2.4.3 Static Web Page Serving Core-AVX2 Core2 Core-AVX-I Corei7-AVX Corei7 Nocona 7K 14K 21K 28K 35K SE +/- 88.76, N = 3 SE +/- 43.24, N = 3 SE +/- 162.72, N = 3 SE +/- 191.20, N = 3 SE +/- 225.32, N = 3 SE +/- 111.38, N = 3 31291.52 31064.17 31007.19 30875.41 30666.53 29830.02 -march=core-avx2 -march=core2 -march=core-avx-i -march=corei7-avx -march=corei7 -march=nocona 1. (CC) gcc options: -shared -fPIC -pthread -O3
Phoronix Test Suite v10.8.4