LLVM Clang 3.8 OpenMP SVN Benchmarks

Benchmarks by Michael Larabel for a future article on Phoronix testing out Clang OpenMP against GCC compilers on Linux x86-64.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1509033-HA-CLANGOPEN51
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GCC 4.9.2
September 02 2015
 
GCC 5.2.0
September 02 2015
 
LLVM Clang 3.8 SVN
September 02 2015
 
LLVM Clang 3.8 SVN OMP
September 02 2015
 
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GCC 4.9.2

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 80GB INTEL SSDSCKGW08, Graphics: NVIDIA GeForce GTX Titan 6144MB, Audio: Intel C610/X99, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: GCC 4.9.2 + Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --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,c++,java,go,d,fortran,objc,obj-c++ --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: intel_pstate powersave

GCC 5.2.0

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: GCC 5.2.0 + Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++
Processor Notes: Scaling Governor: intel_pstate powersave

LLVM Clang 3.8 SVN

Processor Notes: Scaling Governor: intel_pstate powersave

LLVM Clang 3.8 SVN OMP

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 3.8 OpenMP SVN BenchmarksOpenBenchmarking.orgPhoronix Test SuiteIntel Xeon E5-2687W v3 @ 3.50GHz (20 Cores)MSI X99S SLI PLUS (MS-7885) v1.0Intel Xeon E5 v3/Core16384MB80GB INTEL SSDSCKGW08NVIDIA GeForce GTX Titan 6144MBIntel C610/X99ASUS PB278Intel ConnectionUbuntu 15.043.19.0-26-generic (x86_64)Unity 7.3.2X Server 1.17.1nouveau 1.0.113.3 Mesa 10.5.2 Gallium 0.4GCC 4.9.2 + Clang 3.8.0-svn246465-1~exp1GCC 5.2.0 + Clang 3.8.0-svn246465-1~exp1Clang 3.8.0-svn246465-1~exp1ext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionLLVM Clang 3.8 OpenMP SVN Benchmarks PerformanceSystem Logs- GCC 4.9.2: --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,c++,java,go,d,fortran,objc,obj-c++ --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-multilib-list=m32,m64,mx32 --with-tune=generic -v - GCC 5.2.0: --disable-multilib --enable-checking=release --enable-languages=c,c++ - Scaling Governor: intel_pstate powersave

GCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMPLogarithmic Result OverviewPhoronix Test SuiteGraphicsMagickSmallptGraphicsMagickGraphicsMagickGraphicsMagickGraphicsMagickSharpenG.I.R.1.SResizingBlurHWB Color SpaceL.A.T

LLVM Clang 3.8 OpenMP SVN Benchmarksgraphics-magick: Blurgraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdingsmallpt: Global Illumination Renderer; 100 SamplesGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP143143181177871214714418518686129428110135851441171081371508513OpenBenchmarking.org

GraphicsMagick

This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 314314794117-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150Min: 143 / Avg: 143.33 / Max: 144Min: 147 / Avg: 147.33 / Max: 148Min: 93 / Avg: 93.67 / Max: 94Min: 117 / Avg: 117 / Max: 1171. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: SharpenGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 314314428108-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: SharpenGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150Min: 143 / Avg: 143.33 / Max: 144Min: 144 / Avg: 144 / Max: 144Min: 28 / Avg: 28 / Max: 28Min: 108 / Avg: 108 / Max: 1081. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: ResizingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP4080120160200SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 0.58, N = 3181185110137-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: ResizingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150Min: 181 / Avg: 181.33 / Max: 182Min: 185 / Avg: 185.33 / Max: 186Min: 109 / Avg: 109.67 / Max: 110Min: 136 / Avg: 137 / Max: 1381. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP4080120160200SE +/- 0.88, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3177186135150-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150Min: 176 / Avg: 177.33 / Max: 179Min: 185 / Avg: 185.67 / Max: 186Min: 135 / Avg: 135 / Max: 135Min: 150 / Avg: 150 / Max: 1501. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP20406080100SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 387868585-std=gnu99 -fopenmp -pthread -lgomp-fopenmp -pthread -ldl-pthread-fopenmp=libomp -fno-exceptions1. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP1632486480Min: 87 / Avg: 87 / Max: 87Min: 86 / Avg: 86 / Max: 86Min: 85 / Avg: 85 / Max: 85Min: 85 / Avg: 85 / Max: 851. (CC) gcc options: -O3 -march=native -ljbig -lwebp -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

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 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150SE +/- 0.17, N = 6SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.22, N = 6121214413-fopenmp=libomp -fno-exceptions1. (CXX) g++ options: -fopenmp -O3 -march=native
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 4.9.2GCC 5.2.0LLVM Clang 3.8 SVNLLVM Clang 3.8 SVN OMP306090120150Min: 11 / Avg: 11.83 / Max: 12Min: 12 / Avg: 12 / Max: 12Min: 144 / Avg: 144.33 / Max: 145Min: 12 / Avg: 12.5 / Max: 131. (CXX) g++ options: -fopenmp -O3 -march=native

GCC 4.9.2

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 80GB INTEL SSDSCKGW08, Graphics: NVIDIA GeForce GTX Titan 6144MB, Audio: Intel C610/X99, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: GCC 4.9.2 + Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --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,c++,java,go,d,fortran,objc,obj-c++ --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 2 September 2015 14:03 by user phoronix.

GCC 5.2.0

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 80GB INTEL SSDSCKGW08, Graphics: NVIDIA GeForce GTX Titan 6144MB, Audio: Intel C610/X99, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: GCC 5.2.0 + Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 2 September 2015 14:27 by user phoronix.

LLVM Clang 3.8 SVN

Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 2 September 2015 13:24 by user phoronix.

LLVM Clang 3.8 SVN OMP

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E5 v3/Core, Memory: 16384MB, Disk: 80GB INTEL SSDSCKGW08, Graphics: NVIDIA GeForce GTX Titan 6144MB, Audio: Intel C610/X99, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 15.04, Kernel: 3.19.0-26-generic (x86_64), Desktop: Unity 7.3.2, Display Server: X Server 1.17.1, Display Driver: nouveau 1.0.11, OpenGL: 3.3 Mesa 10.5.2 Gallium 0.4, Compiler: Clang 3.8.0-svn246465-1~exp1, File-System: ext4, Screen Resolution: 1920x1080

Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 2 September 2015 12:02 by user phoronix.