LLVM Clang 3.4 Intel Core i7 Haswell Core-AVX2

Intel Core i7-4770K Haswell testing of GCC 4.8.1 and an early GCC 4.9.0 compiler snapshot along with LLVM Clang 3.3 and an LLVM Clang 3.4 development snapshot. Testing with CFLAGS/CXXFLAGS for the Intel Core i7 Haswell CPU of -O3 and -march=core-avx2. Benchmarking by Michael Larabel for a future article on phoronix.com

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1306273-SO-CLANG34LL14
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GCC 4.8.1
June 26 2013
 
GCC 4.9.0 20130623
June 25 2013
 
LLVM Clang 3.3
June 27 2013
 
LLVM 3.4 SVN 20130626
June 26 2013
 
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GCC 4.8.1

Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: Intel DH87RL, Chipset: Intel 4th Gen Core DRAM, Memory: 15360MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Haswell Desktop, Audio: Intel Haswell HDMI, Monitor: VA2431, Network: Intel Connection I217-V

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: GCC 4.8.1 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

GCC 4.9.0 20130623

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: GCC 4.9.0 20130623 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 3.3

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (17:06:21); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

LLVM 3.4 SVN 20130626

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: Clang 3.4 (SVN 185044) + LLVM 3.4svn, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 26 2013 (19:58:17); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

LLVM Clang 3.4 Intel Core i7 Haswell Core-AVX2OpenBenchmarking.orgPhoronix Test SuiteIntel Core i7-4770K @ 3.50GHz (8 Cores)Intel DH87RLIntel 4th Gen Core DRAM15360MB240GB OCZ VERTEX3Intel Haswell DesktopIntel Haswell HDMIVA2431Intel Connection I217-VUbuntu 13.103.10.0-999-generic (x86_64)KDE 4.10.4X Server 1.13.3intel 2.21.93.0 Mesa 9.2.0-devel (git-bbd2d57)GCC 4.8.1 + Clang 3.3 + LLVM 3.3GCC 4.9.0 20130623 + Clang 3.3 + LLVM 3.3Clang 3.3 + LLVM 3.3Clang 3.4 (SVN 185044) + LLVM 3.4svnext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionLLVM Clang 3.4 Intel Core I7 Haswell Core-AVX2 BenchmarksSystem Logs- GCC 4.8.1: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran- GCC 4.9.0 20130623: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran - LLVM Clang 3.3: Optimized build; Built Jun 20 2013 (17:06:21); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64 - LLVM 3.4 SVN 20130626: Optimized build; Built Jun 26 2013 (19:58:17); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64 - Scaling Governor: acpi-cpufreq ondemand

GCC 4.8.1GCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 20130626Logarithmic Result OverviewPhoronix Test SuiteSmallptN-QueensPrimesieveTimed ImageMagick CompilationGraphicsMagickC-RayHimeno BenchmarkBLAKE2FLAC Audio EncodingSciMarkTimed MAFFT AlignmentTimed HMMer Searchx264

LLVM Clang 3.4 Intel Core i7 Haswell Core-AVX2scimark2: Compositescimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationblake2: Phoronix Test Suite v4.8.0m1encode-flac: WAV To FLAChmmer: Pfam Database Searchmafft: Multiple Sequence Alignmenthimeno: Poisson Pressure Solvern-queens: Elapsed Timebuild-imagemagick: Time To Compileprimesieve: 1e12 Prime Number Generationgraphics-magick: Resizingx264: H.264 Video Encodingc-ray: Total Timesmallpt: Global Illumination Renderer; 100 SamplesGCC 4.8.1GCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 201306261009.99242.661204.001825.431169.095.715.3710.475.471048.7736.6979.1879.17175156.2617.06251005.56248.011148.951851.861170.185.295.2610.405.521588.3736.7274.5979.20181155.6717.03251102.35249.831228.191755.851673.057.405.6410.816.091586.39184.2834.39323.3791155.0127.061401204.77239.901182.302397.891613.327.814.5510.705.981395.01186.3234.37320.2391152.8226.22140OpenBenchmarking.org

SciMark

This test runs the ANSI C version of SciMark 2.0, which is a benchmark for scientific and numerical computing developed by programmers at the National Institute of Standards and Technology. This test is made up of Fast Foruier Transform, Jacobi Successive Over-relaxation, Monte Carlo, Sparse Matrix Multiply, and dense LU matrix factorization benchmarks. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeLLVM 3.4 SVN 20130626LLVM Clang 3.3GCC 4.8.1GCC 4.9.0 2013062330060090012001500SE +/- 1.71, N = 4SE +/- 1.35, N = 4SE +/- 3.60, N = 4SE +/- 0.86, N = 41204.771102.351009.991005.561. (CXX) g++ options: -O3 -march=core-avx2

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 3.3GCC 4.9.0 20130623GCC 4.8.1LLVM 3.4 SVN 2013062650100150200250SE +/- 0.21, N = 4SE +/- 0.51, N = 4SE +/- 2.71, N = 4SE +/- 0.81, N = 3249.83248.01242.66239.901. (CXX) g++ options: -O3 -march=core-avx2

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 3.3GCC 4.8.1LLVM 3.4 SVN 20130626GCC 4.9.0 2013062330060090012001500SE +/- 1.06, N = 4SE +/- 8.39, N = 4SE +/- 8.53, N = 4SE +/- 1.61, N = 41228.191204.001182.301148.951. (CXX) g++ options: -O3 -march=core-avx2

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationLLVM 3.4 SVN 20130626GCC 4.9.0 20130623GCC 4.8.1LLVM Clang 3.35001000150020002500SE +/- 26.35, N = 4SE +/- 2.63, N = 4SE +/- 17.54, N = 4SE +/- 2.77, N = 42397.891851.861825.431755.851. (CXX) g++ options: -O3 -march=core-avx2

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationLLVM Clang 3.3LLVM 3.4 SVN 20130626GCC 4.9.0 20130623GCC 4.8.1400800120016002000SE +/- 1.32, N = 4SE +/- 20.67, N = 4SE +/- 0.00, N = 4SE +/- 3.34, N = 41673.051613.321170.181169.091. (CXX) g++ options: -O3 -march=core-avx2

BLAKE2

OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.8.0m1GCC 4.9.0 20130623GCC 4.8.1LLVM Clang 3.3LLVM 3.4 SVN 20130626246810SE +/- 0.00, N = 3SE +/- 0.08, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 35.295.717.407.811. (CC) gcc options: -std=gnu99 -O3 -march=native -lcrypto -lz

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.0WAV To FLACLLVM 3.4 SVN 20130626GCC 4.9.0 20130623GCC 4.8.1LLVM Clang 3.31.2692.5383.8075.0766.345SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 5SE +/- 0.00, N = 54.555.265.375.641. (CXX) g++ options: -O3 -march=core-avx2 -fvisibility=hidden -logg -lm

Timed HMMer Search

This test searches through the Pfam database of profile hidden markov models. The search finds the domain structure of Drosophila Sevenless protein. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 4.9.0 20130623GCC 4.8.1LLVM 3.4 SVN 20130626LLVM Clang 3.33691215SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 310.4010.4710.7010.811. (CC) gcc options: -O3 -march=core-avx2 -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentGCC 4.8.1GCC 4.9.0 20130623LLVM 3.4 SVN 20130626LLVM Clang 3.3246810SE +/- 0.13, N = 6SE +/- 0.15, N = 6SE +/- 0.04, N = 3SE +/- 0.10, N = 65.475.525.986.091. (CC) gcc options: -O3 -lm -lpthread

Himeno Benchmark

The Himeno benchmark is a linear solver of pressure Poisson using a point-Jacobi method. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 20130626GCC 4.8.130060090012001500SE +/- 2.58, N = 3SE +/- 0.45, N = 3SE +/- 82.18, N = 6SE +/- 5.10, N = 31588.371586.391395.011048.771. (CC) gcc options: -O3 -march=core-avx2

N-Queens

This is a test of the OpenMP version of a test that solves the N-queens problem. The board problem size is 18. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterN-Queens 1.0Elapsed TimeGCC 4.8.1GCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 201306264080120160200SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.11, N = 3SE +/- 0.05, N = 336.6936.72184.28186.321. (CC) gcc options: -static -fopenmp -O3 -march=core-avx2

Timed ImageMagick Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.8.1-10Time To CompileLLVM 3.4 SVN 20130626LLVM Clang 3.3GCC 4.9.0 20130623GCC 4.8.120406080100SE +/- 0.12, N = 3SE +/- 0.10, N = 3SE +/- 0.11, N = 3SE +/- 0.28, N = 334.3734.3974.5979.18

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.21e12 Prime Number GenerationGCC 4.8.1GCC 4.9.0 20130623LLVM 3.4 SVN 20130626LLVM Clang 3.370140210280350SE +/- 0.14, N = 3SE +/- 0.04, N = 3SE +/- 0.41, N = 3SE +/- 0.19, N = 379.1779.20320.23323.37-fopenmp-fopenmp1. (CXX) g++ options: -O2

GraphicsMagick

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: ResizingGCC 4.9.0 20130623GCC 4.8.1LLVM 3.4 SVN 20130626LLVM Clang 3.34080120160200SE +/- 0.00, N = 3SE +/- 2.73, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31811759191-std=gnu99 -fopenmp-std=gnu99 -fopenmp1. (CC) gcc options: -O3 -march=core-avx2 -pthread -lXext -lSM -lICE -lX11 -lbz2 -lz -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2013-06-08H.264 Video EncodingGCC 4.8.1GCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 20130626306090120150SE +/- 0.79, N = 5SE +/- 0.90, N = 5SE +/- 0.15, N = 5SE +/- 0.51, N = 5156.26155.67155.01152.821. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -march=core-avx2 -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize

C-Ray

This is a test of C-Ray, a simple raytracer designed to test the floating-point CPU performance. This test is multi-threaded (16 threads per core), will shoot 8 rays per pixel for anti-aliasing, and will generate a 1600 x 1200 image. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC 4.9.0 20130623GCC 4.8.1LLVM 3.4 SVN 20130626LLVM Clang 3.3612182430SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 317.0317.0626.2227.061. (CC) gcc options: -lm -lpthread -O3 -march=core-avx2

Smallpt

Smallpt is a C++ global illumination renderer written in less than 100 lines of code. Global illumination is done via unbiased Monte Carlo path tracing and there is multi-threading support via the OpenMP library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 4.8.1GCC 4.9.0 20130623LLVM Clang 3.3LLVM 3.4 SVN 20130626306090120150SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 325251401401. (CXX) g++ options: -fopenmp -O3 -march=core-avx2

GCC 4.8.1

Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: Intel DH87RL, Chipset: Intel 4th Gen Core DRAM, Memory: 15360MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Haswell Desktop, Audio: Intel Haswell HDMI, Monitor: VA2431, Network: Intel Connection I217-V

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: GCC 4.8.1 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

Testing initiated at 26 June 2013 10:00 by user phoronix.

GCC 4.9.0 20130623

Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: Intel DH87RL, Chipset: Intel 4th Gen Core DRAM, Memory: 15360MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Haswell Desktop, Audio: Intel Haswell HDMI, Monitor: VA2431, Network: Intel Connection I217-V

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: GCC 4.9.0 20130623 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

Testing initiated at 25 June 2013 22:57 by user phoronix.

LLVM Clang 3.3

Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: Intel DH87RL, Chipset: Intel 4th Gen Core DRAM, Memory: 15360MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Haswell Desktop, Audio: Intel Haswell HDMI, Monitor: VA2431, Network: Intel Connection I217-V

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (17:06:21); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

Testing initiated at 27 June 2013 04:38 by user phoronix.

LLVM 3.4 SVN 20130626

Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: Intel DH87RL, Chipset: Intel 4th Gen Core DRAM, Memory: 15360MB, Disk: 240GB OCZ VERTEX3, Graphics: Intel Haswell Desktop, Audio: Intel Haswell HDMI, Monitor: VA2431, Network: Intel Connection I217-V

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: KDE 4.10.4, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.2.0-devel (git-bbd2d57), Compiler: Clang 3.4 (SVN 185044) + LLVM 3.4svn, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 26 2013 (19:58:17); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi-cpufreq ondemand

Testing initiated at 26 June 2013 21:43 by user phoronix.