LLVM Clang 3.3, Clang 3.2, GCC 4.8 Compilers Benchmarking LLVM Clang 3.2, LLVM Clang 3.3 RC1, and GCC 4.8.0 on various Linux systems. Benchmarking by Michael Larabel for a future article on Phoronix.com.
HTML result view exported from: https://openbenchmarking.org/result/1305170-UT-LLVMCLANG75&grw .
Processor Motherboard Chipset Memory Disk Graphics Audio Monitor Network OS Kernel Desktop Display Server Display Driver OpenGL Compiler File-System Screen Resolution Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 Intel Core i7-3960X @ 3.30GHz (12 Cores) Intel DX79SI Intel Xeon E5/Core 8192MB 64GB OCZ VERTEX AMD Radeon HD 4650 512MB Realtek ALC892 DELL S2409W Intel 82579LM Gigabit Connection Ubuntu 13.04 3.8.0-19-generic (x86_64) Unity 7.0.0 X Server 1.13.3 radeon 7.1.0 3.0 Mesa 9.1.1 Gallium 0.4 GCC 4.8.0 ext4 1920x1080 Clang 3.2 + LLVM 3.2svn Clang 3.3 + LLVM 3.3svn AMD FX-8350 Eight-Core @ 4.00GHz (8 Cores) ASUS Crosshair V Formula AMD ATI RD890 bridge 60GB OCZ VERTEX2 AMD Radeon HD 4870 512MB Realtek ALC889 VA2431 Intel 82583V Gigabit Connection 3.0 Mesa 9.2.0 (git-a67b18e) Gallium 0.4 GCC 4.8.0 Clang 3.2 + LLVM 3.2svn Clang 3.3 + LLVM 3.3svn Intel Core i3-3217U @ 1.80GHz (4 Cores) ASUS K56CA v1.0 Intel 3rd Gen Core DRAM 4096MB 500GB Hitachi HTS54505 + 24GB SanDisk SSD i100 Intel 3rd Gen Core Realtek ALC270 Realtek RTL8111/8168 + Atheros AR9485 Wireless Ubuntu 13.10 3.10.0-999-generic (x86_64) intel 2.21.6 3.0 Mesa 9.2.0 (git-4f518e1) GCC 4.8.0 1366x768 Clang 3.2 + LLVM 3.2svn Clang 3.3 + LLVM 3.3svn OpenBenchmarking.org Compiler Details - Intel Core i7 3960X: GCC 4.8.0: --disable-multilib --enable-checking=release --enable-languages=c,c++ - Intel Core i7 3960X: Clang 3.2: Optimized build; Built May 12 2013 (18:35:01); Default target: x86_64-unknown-linux-gnu; Host CPU: corei7-avx - Intel Core i7 3960X: Clang 3.3-rc1: Optimized build; Built May 12 2013 (23:22:45); Default target: x86_64-unknown-linux-gnu; Host CPU: corei7-avx - AMD FX-8350: GCC 4.8.0: --disable-multilib --enable-checking=release --enable-languages=c,c++ - AMD FX-8350: Clang 3.2: Optimized build; Built May 14 2013 (10:55:50); Default target: x86_64-unknown-linux-gnu; Host CPU: bdver1 - AMD FX-8350: Clang 3.3-rc1: Optimized build; Built May 14 2013 (11:07:41); Default target: x86_64-unknown-linux-gnu; Host CPU: bdver1 - Intel Core i3 3217U: GCC 4.8.0: --disable-multilib --enable-checking=release --enable-languages=c,c++ - Intel Core i3 3217U: Clang 3.2: Optimized build; Built May 16 2013 (23:24:18); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx-i - Intel Core i3 3217U: Clang 3.3-rc1: Optimized build; Built May 17 2013 (00:03:18); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx-i Processor Details - Scaling Governor: ondemand
blake2: Phoronix Test Suite v4.6.0m1 hmmer: Pfam Database Search mafft: Multiple Sequence Alignment himeno: Poisson Pressure Solver build-imagemagick: Time To Compile build-php: Time To Compile graphics-magick: Blur graphics-magick: Sharpen graphics-magick: Resizing graphics-magick: HWB Color Space graphics-magick: Local Adaptive Thresholding c-ray: Total Time ffmpeg: H.264 HD To NTSC DV smallpt: Global Illumination Renderer; 100 Samples apache: Static Web Page Serving pgbench: TPC-B Transactions Per Second Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 5.00 15.91 7.19 1629.42 49.99 22.59 143 117 175 192 133 18.41 18.09 19 14318.97 5.52 15.42 7.42 1562.31 21.18 15.58 82 31 89 124 44 21.05 18.35 165 14267.94 354.32 5.50 15.94 7.54 1597.62 22.63 16.80 81 31 89 123 49 20.81 18.43 163 14662.33 351.51 8.99 11.52 6.42 731.99 102.92 31.17 116 112 148 159 99 19.26 20.35 33 19810.73 9.63 12.57 7.09 650.02 26.94 19.37 64 23 73 105 38 32.87 20.42 248 20186.40 2438.64 9.80 11.02 6.86 667.68 28.65 20.82 64 22 73 104 37 32.80 20.30 248 19950.55 2412.86 6.03 38.39 20.34 779.65 208.42 98.29 54 29 63 81 39 116.29 34.34 117 11374.96 6.48 48.17 23.88 781.12 97.07 57.64 40 15 42 69 21 133.72 34.45 341 12063.12 521.66 6.48 40.11 21.67 758.34 104.36 59.27 40 15 42 68 23 132.37 344 12423.85 542.70 OpenBenchmarking.org
BLAKE2 Phoronix Test Suite v4.6.0m1 Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Cycles Per Byte, Fewer Is Better BLAKE2 20121223 Phoronix Test Suite v4.6.0m1 GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 3 6 9 12 15 SE +/- 0.00, N = 3 SE +/- 0.01, N = 3 SE +/- 0.01, N = 3 SE +/- 0.01, N = 3 SE +/- 0.01, N = 3 SE +/- 0.17, N = 3 SE +/- 0.10, N = 4 SE +/- 0.00, N = 3 SE +/- 0.01, N = 3 5.00 5.52 5.50 8.99 9.63 9.80 6.03 6.48 6.48 1. (CC) gcc options: -std=gnu99 -O3 -march=native -lcrypto -lz
Timed HMMer Search Pfam Database Search Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better Timed HMMer Search 2.3.2 Pfam Database Search GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 11 22 33 44 55 SE +/- 0.01, N = 3 SE +/- 0.03, N = 3 SE +/- 0.02, N = 3 SE +/- 0.20, N = 6 SE +/- 0.11, N = 3 SE +/- 0.17, N = 3 SE +/- 0.10, N = 3 SE +/- 0.06, N = 3 SE +/- 0.01, N = 3 15.91 15.42 15.94 11.52 12.57 11.02 38.39 48.17 40.11 1. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm
Timed MAFFT Alignment Multiple Sequence Alignment Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better Timed MAFFT Alignment 6.864 Multiple Sequence Alignment GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 6 12 18 24 30 SE +/- 0.07, N = 3 SE +/- 0.18, N = 6 SE +/- 0.18, N = 6 SE +/- 0.11, N = 4 SE +/- 0.15, N = 6 SE +/- 0.05, N = 3 SE +/- 0.09, N = 3 SE +/- 0.06, N = 3 SE +/- 0.13, N = 3 7.19 7.42 7.54 6.42 7.09 6.86 20.34 23.88 21.67 1. (CC) gcc options: -O3 -lm -lpthread
Himeno Benchmark Poisson Pressure Solver Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org MFLOPS, More Is Better Himeno Benchmark 3.0 Poisson Pressure Solver GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 400 800 1200 1600 2000 SE +/- 1.14, N = 3 SE +/- 4.41, N = 3 SE +/- 1.53, N = 3 SE +/- 0.30, N = 3 SE +/- 0.79, N = 3 SE +/- 0.11, N = 3 SE +/- 0.50, N = 3 SE +/- 1.54, N = 3 SE +/- 0.37, N = 3 1629.42 1562.31 1597.62 731.99 650.02 667.68 779.65 781.12 758.34 1. (CC) gcc options: -O3 -march=native
Timed ImageMagick Compilation Time To Compile Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better Timed ImageMagick Compilation 6.8.1-10 Time To Compile GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 50 100 150 200 250 SE +/- 0.10, N = 3 SE +/- 0.19, N = 3 SE +/- 0.06, N = 3 SE +/- 0.14, N = 3 SE +/- 0.15, N = 3 SE +/- 0.05, N = 3 SE +/- 0.14, N = 3 SE +/- 0.17, N = 3 SE +/- 0.11, N = 3 49.99 21.18 22.63 102.92 26.94 28.65 208.42 97.07 104.36
Timed PHP Compilation Time To Compile Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better Timed PHP Compilation 5.2.9 Time To Compile GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 20 40 60 80 100 SE +/- 0.12, N = 3 SE +/- 0.05, N = 3 SE +/- 0.10, N = 3 SE +/- 0.02, N = 3 SE +/- 0.12, N = 3 SE +/- 0.06, N = 3 SE +/- 0.32, N = 3 SE +/- 0.34, N = 3 SE +/- 0.13, N = 3 22.59 15.58 16.80 31.17 19.37 20.82 98.29 57.64 59.27 1. (CC) gcc options: -O3 -march=native -pedantic -ldl -lz -lm
GraphicsMagick Operation: Blur Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Blur GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 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 +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 143 82 81 116 64 64 54 40 40 1. (CC) gcc options: -O3 -march=native -pthread -lXext -lSM -lICE -lX11 -lz -lm -lpthread
GraphicsMagick Operation: Sharpen Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Sharpen GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 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 +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 117 31 31 112 23 22 29 15 15 1. (CC) gcc options: -O3 -march=native -pthread -lXext -lSM -lICE -lX11 -lz -lm -lpthread
GraphicsMagick Operation: Resizing Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Resizing GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 40 80 120 160 200 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 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 175 89 89 148 73 73 63 42 42 1. (CC) gcc options: -O3 -march=native -pthread -lXext -lSM -lICE -lX11 -lz -lm -lpthread
GraphicsMagick Operation: HWB Color Space Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: HWB Color Space GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 40 80 120 160 200 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 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 192 124 123 159 105 104 81 69 68 1. (CC) gcc options: -O3 -march=native -pthread -lXext -lSM -lICE -lX11 -lz -lm -lpthread
GraphicsMagick Operation: Local Adaptive Thresholding Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.16 Operation: Local Adaptive Thresholding GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 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 +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 133 44 49 99 38 37 39 21 23 1. (CC) gcc options: -O3 -march=native -pthread -lXext -lSM -lICE -lX11 -lz -lm -lpthread
C-Ray Total Time Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better C-Ray 1.1 Total Time GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 30 60 90 120 150 SE +/- 0.03, N = 3 SE +/- 0.05, N = 3 SE +/- 0.02, N = 3 SE +/- 0.01, N = 3 SE +/- 0.02, N = 3 SE +/- 0.01, N = 3 SE +/- 0.01, N = 3 SE +/- 0.03, N = 3 SE +/- 0.11, N = 3 18.41 21.05 20.81 19.26 32.87 32.80 116.29 133.72 132.37 1. (CC) gcc options: -lm -lpthread -O3 -march=native
FFmpeg H.264 HD To NTSC DV Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better FFmpeg 1.1 H.264 HD To NTSC DV GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 8 16 24 32 40 SE +/- 0.12, N = 3 SE +/- 0.12, N = 3 SE +/- 0.18, N = 3 SE +/- 0.01, N = 3 SE +/- 0.15, N = 3 SE +/- 0.08, N = 3 SE +/- 0.04, N = 3 SE +/- 0.03, N = 3 18.09 18.35 18.43 20.35 20.42 20.30 34.34 34.45 1. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lm -pthread -O3 -march=native -std=c99 -fomit-frame-pointer -fno-math-errno -fno-signed-zeros -MMD
Smallpt Global Illumination Renderer; 100 Samples Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Seconds, Fewer Is Better Smallpt 1.0 Global Illumination Renderer; 100 Samples GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 70 140 210 280 350 SE +/- 0.00, N = 3 SE +/- 1.20, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.58, N = 3 SE +/- 0.88, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 3.67, N = 3 19 165 163 33 248 248 117 341 344 1. (CXX) g++ options: -fopenmp -O3 -march=native
Apache Benchmark Static Web Page Serving Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org Requests Per Second, More Is Better Apache Benchmark 2.4.3 Static Web Page Serving GCC 4.8.0 Clang 3.2 Clang 3.3-rc1 4K 8K 12K 16K 20K SE +/- 176.48, N = 3 SE +/- 119.56, N = 3 SE +/- 19.13, N = 3 SE +/- 54.62, N = 3 SE +/- 302.76, N = 3 SE +/- 112.88, N = 3 SE +/- 97.71, N = 3 SE +/- 180.33, N = 3 SE +/- 81.41, N = 3 14318.97 14267.94 14662.33 19810.73 20186.40 19950.55 11374.96 12063.12 12423.85 1. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native
PostgreSQL pgbench TPC-B Transactions Per Second Intel Core i7 3960X AMD FX-8350 Intel Core i3 3217U OpenBenchmarking.org TPS, More Is Better PostgreSQL pgbench 8.4.11 TPC-B Transactions Per Second Clang 3.2 Clang 3.3-rc1 500 1000 1500 2000 2500 SE +/- 0.80, N = 3 SE +/- 4.34, N = 3 SE +/- 36.10, N = 4 SE +/- 61.65, N = 6 SE +/- 8.57, N = 4 SE +/- 7.11, N = 3 354.32 351.51 2438.64 2412.86 521.66 542.70 1. (CC) gcc options: -O3 -march=native -fno-strict-aliasing -fwrapv -lpgport -lpq -lcrypt -ldl -lm
Phoronix Test Suite v10.8.5