LLVM Clang 3.2 Release

Final release benchmarking of LLVM Clang 3.2 final release using optimized/non-debug/non-assert builds of LLVM Clang 3.1, LLVM Clang 3.2, GCC 4.7.2, and GCC 4.8 snapshot from late December. Benchmarking on an Intel Core i7 3770K Ivy Bridge processor with flags of -O3 and -march=native. Compiler benchmarking 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 1212278-RA-LLVMCLANG86
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LLVM Clang 3.1
December 26 2012
 
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December 26 2012
 
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December 26 2012
 
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LLVM Clang 3.2 ReleaseOpenBenchmarking.orgPhoronix Test SuiteIntel Core i7-3770K @ 3.50GHz (8 Cores)ECS Z77H2-A2X v1.0Intel Xeon E3-1200 v2/3rd8192MB60GB OCZ VERTEX2NVIDIA GeForce GT 220 (405/324MHz)Realtek ALC892DELL P2210HRealtek RTL8111/8168B + Intel Centrino Advanced-N 6205Ubuntu 13.043.7.0-7-generic (x86_64)Unity 6.6.0X Server 1.13.0.902 (1.13.1 RC 2)nouveau 1.0.43.0 Mesa 9.0.1 Gallium 0.4Clang 3.1 + LLVM 3.1Clang 3.2 + LLVM 3.2svnGCC 4.7.2GCC 4.8.0 20121223ext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionLLVM Clang 3.2 Release BenchmarksSystem Logs- LLVM Clang 3.1: Optimized build; Built Dec 26 2012 (09:07:02); Default target: x86_64-unknown-linux-gnu; Host CPU: i686 - LLVM Clang 3.2: Optimized build; Built Dec 26 2012 (08:48:06); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx-i - GCC 4.7.2: --enable-checking=release --enable-languages=c,c++ --enable-lto - GCC 4.8.0 20121223: --enable-checking=release --enable-languages=c,c++ --enable-lto - Scaling Governor: ondemand- Compiz was running on this system.

LLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223Logarithmic Result OverviewPhoronix Test SuiteSmallptGraphicsMagickC-RaySciMarkTimed HMMer SearchTachyonTimed MAFFT AlignmentVP8 libvpx EncodingLAME MP3 EncodingFFmpegHimeno Benchmark7-Zip CompressionApache BenchmarkNGINX BenchmarkOpenSSL

LLVM Clang 3.2 Releasehmmer: Pfam Database Searchmafft: Multiple Sequence Alignmentblake2: Phoronix Test Suite v4.2.0m3scimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationjohn-the-ripper: Blowfishvpxenc: vpxencx264: H.264 Video Encodinggraphics-magick: Blurgraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solvercompress-7zip: Compress Speed Testc-ray: Total Timesmallpt: Global Illumination Renderer; 100 Samplesencode-mp3: WAV To MP3ffmpeg: H.264 HD To NTSC DVtachyon: Total Timeopenssl: RSA 4096-bit Performancenginx: Static Web Page Servingapache: Static Web Page ServingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122312.166.45614.02334.232352.373049.851681.0897127.00149.769154106141461626.132141539.2821713.8917.0811.03129.5736541.4131339.1912.206.275.84618.43334.012566.302402.431682.2398127.73150.40863191149461641.072116932.3122713.3416.8411.15130.3736743.9331118.5210.095.695.36423.57347.482250.552407.841180.32603528.27156.08141951681981181651.822182432.133813.7616.5513.06130.7336874.6731218.7210.155.865.32555.63338.872260.042391.651179.1827.67140951671971181676.602139328.153813.4616.6013.03130.5736709.6631010.59OpenBenchmarking.org

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 SearchLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212233691215SE +/- 0.10, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 312.1612.2010.0910.15-march=native-march=native-march=native1. (CC) gcc options: -O3 -pthread -lhmmer -lsquid -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620Min: 12.06 / Avg: 12.16 / Max: 12.36Min: 12.14 / Avg: 12.2 / Max: 12.24Min: 10.08 / Avg: 10.09 / Max: 10.1Min: 10.14 / Avg: 10.15 / Max: 10.171. (CC) gcc options: -O3 -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223246810SE +/- 0.13, N = 6SE +/- 0.02, N = 3SE +/- 0.12, N = 6SE +/- 0.12, N = 66.456.275.695.861. (CC) gcc options: -O3 -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212233691215Min: 6.19 / Avg: 6.45 / Max: 6.9Min: 6.24 / Avg: 6.27 / Max: 6.28Min: 5.47 / Avg: 5.69 / Max: 6.1Min: 5.48 / Avg: 5.86 / Max: 6.151. (CC) gcc options: -O3 -lm -lpthread

BLAKE2

OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.2.0m3LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212231.3142.6283.9425.2566.57SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 35.845.365.321. (CC) gcc options: -std=gnu99 -O3 -march=native
OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.2.0m3LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223246810Min: 5.81 / Avg: 5.84 / Max: 5.9Min: 5.35 / Avg: 5.36 / Max: 5.37Min: 5.31 / Avg: 5.32 / Max: 5.321. (CC) gcc options: -std=gnu99 -O3 -march=native

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223130260390520650SE +/- 1.50, N = 4SE +/- 0.85, N = 4SE +/- 0.48, N = 4SE +/- 0.41, N = 4614.02618.43423.57555.63
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223110220330440550Min: 610.08 / Avg: 614.02 / Max: 617.09Min: 617.09 / Avg: 618.43 / Max: 620.66Min: 422.73 / Avg: 423.57 / Max: 424.4Min: 554.91 / Avg: 555.63 / Max: 556.34

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122380160240320400SE +/- 0.53, N = 4SE +/- 3.32, N = 4SE +/- 1.06, N = 4SE +/- 0.67, N = 4334.23334.01347.48338.87
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122360120180240300Min: 332.93 / Avg: 334.23 / Max: 335.54Min: 324.11 / Avg: 334.01 / Max: 338.2Min: 345.02 / Avg: 347.48 / Max: 349.24Min: 336.87 / Avg: 338.87 / Max: 339.54

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212236001200180024003000SE +/- 5.06, N = 4SE +/- 15.62, N = 4SE +/- 0.00, N = 4SE +/- 11.55, N = 42352.372566.302250.552260.04
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223400800120016002000Min: 2340.57 / Avg: 2352.37 / Max: 2360.81Min: 2536.22 / Avg: 2566.3 / Max: 2608.92Min: 2250.55 / Avg: 2250.55 / Max: 2250.55Min: 2238.25 / Avg: 2260.04 / Max: 2288.27

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212237001400210028003500SE +/- 7.43, N = 4SE +/- 4.42, N = 4SE +/- 3.14, N = 4SE +/- 4.38, N = 43049.852402.432407.842391.65
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212235001000150020002500Min: 3030.3 / Avg: 3049.85 / Max: 3065.13Min: 2391.63 / Avg: 2402.43 / Max: 2413.27Min: 2402.4 / Avg: 2407.84 / Max: 2413.27Min: 2380.95 / Avg: 2391.65 / Max: 2402.4

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223400800120016002000SE +/- 1.15, N = 4SE +/- 1.33, N = 4SE +/- 1.14, N = 4SE +/- 0.00, N = 41681.081682.231180.321179.18
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122330060090012001500Min: 1679.92 / Avg: 1681.08 / Max: 1684.54Min: 1679.92 / Avg: 1682.23 / Max: 1684.54Min: 1179.18 / Avg: 1180.32 / Max: 1183.73Min: 1179.18 / Avg: 1179.18 / Max: 1179.18

John The Ripper

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.7.9-jumbo-7Test: BlowfishLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.213002600390052006500SE +/- 2.67, N = 3SE +/- 4.37, N = 3SE +/- 0.00, N = 397198160351. (CC) gcc options: -lssl -lcrypto -lm -lz -fopenmp -lcrypt -ldl
OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.7.9-jumbo-7Test: BlowfishLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.210002000300040005000Min: 966 / Avg: 971.33 / Max: 974Min: 972 / Avg: 980.67 / Max: 986Min: 6035 / Avg: 6035 / Max: 60351. (CC) gcc options: -lssl -lcrypto -lm -lz -fopenmp -lcrypt -ldl

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223714212835SE +/- 0.16, N = 3SE +/- 0.08, N = 3SE +/- 0.14, N = 3SE +/- 0.19, N = 327.0027.7328.2727.671. (CC) gcc options: -m64 -lvpx -lm -lpthread
OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223612182430Min: 26.82 / Avg: 27 / Max: 27.32Min: 27.58 / Avg: 27.73 / Max: 27.84Min: 28.05 / Avg: 28.27 / Max: 28.52Min: 27.41 / Avg: 27.67 / Max: 28.031. (CC) gcc options: -m64 -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video EncodingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2306090120150SE +/- 1.17, N = 3SE +/- 1.79, N = 3SE +/- 0.60, N = 3149.76150.40156.08
OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video EncodingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2306090120150Min: 147.57 / Avg: 149.76 / Max: 151.57Min: 146.83 / Avg: 150.4 / Max: 152.29Min: 154.89 / Avg: 156.08 / Max: 156.82

GraphicsMagick

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: BlurLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223306090120150SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 39186141140-march=native-std=gnu99 -fopenmp -march=native -lrt-std=gnu99 -fopenmp -march=native -lrt1. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: BlurLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223306090120150Min: 91 / Avg: 91.33 / Max: 92Min: 86 / Avg: 86 / Max: 86Min: 141 / Avg: 141 / Max: 141Min: 140 / Avg: 140 / Max: 1401. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: SharpenLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122320406080100SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 354319595-march=native-std=gnu99 -fopenmp -march=native -lrt-std=gnu99 -fopenmp -march=native -lrt1. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: SharpenLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122320406080100Min: 54 / Avg: 54 / Max: 54Min: 31 / Avg: 31 / Max: 31Min: 95 / Avg: 95 / Max: 95Min: 95 / Avg: 95 / Max: 951. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: ResizingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212234080120160200SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 310691168167-march=native-std=gnu99 -fopenmp -march=native -lrt-std=gnu99 -fopenmp -march=native -lrt1. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: ResizingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223306090120150Min: 106 / Avg: 106.33 / Max: 107Min: 91 / Avg: 91 / Max: 91Min: 168 / Avg: 168.33 / Max: 169Min: 166 / Avg: 166.67 / Max: 1671. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: HWB Color SpaceLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212234080120160200SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.33, N = 3141149198197-march=native-std=gnu99 -fopenmp -march=native -lrt-std=gnu99 -fopenmp -march=native -lrt1. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: HWB Color SpaceLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212234080120160200Min: 141 / Avg: 141.33 / Max: 142Min: 149 / Avg: 149 / Max: 149Min: 198 / Avg: 198 / Max: 198Min: 197 / Avg: 197.33 / Max: 1981. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: Local Adaptive ThresholdingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223306090120150SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 34646118118-march=native-std=gnu99 -fopenmp -march=native -lrt-std=gnu99 -fopenmp -march=native -lrt1. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -lm -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.16Operation: Local Adaptive ThresholdingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122320406080100Min: 46 / Avg: 46 / Max: 46Min: 46 / Avg: 46 / Max: 46Min: 118 / Avg: 118 / Max: 118Min: 118 / Avg: 118 / Max: 1181. (CC) gcc options: -O3 -pthread -lXext -lX11 -lbz2 -lz -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 SolverLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223400800120016002000SE +/- 2.66, N = 3SE +/- 3.70, N = 3SE +/- 30.11, N = 3SE +/- 2.28, N = 31626.131641.071651.821676.60-march=native-march=native-march=native1. (CC) gcc options: -O3
OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122330060090012001500Min: 1623.45 / Avg: 1626.13 / Max: 1631.45Min: 1634.7 / Avg: 1641.07 / Max: 1647.51Min: 1619.57 / Avg: 1651.82 / Max: 1711.98Min: 1672.52 / Avg: 1676.6 / Max: 1680.391. (CC) gcc options: -O3

7-Zip Compression

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212235K10K15K20K25KSE +/- 370.18, N = 4SE +/- 392.50, N = 3SE +/- 103.34, N = 3SE +/- 81.74, N = 3214152116921824213931. (CXX) g++ options: -pipe -lpthread
OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212234K8K12K16K20KMin: 20446 / Avg: 21414.5 / Max: 22247Min: 20423 / Avg: 21168.67 / Max: 21754Min: 21617 / Avg: 21823.67 / Max: 21929Min: 21305 / Avg: 21392.67 / Max: 215561. (CXX) g++ options: -pipe -lpthread

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 TimeLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223918273645SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 339.2832.3132.1328.15-march=native-march=native-march=native1. (CC) gcc options: -lm -lpthread -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223816243240Min: 39.25 / Avg: 39.28 / Max: 39.3Min: 32.3 / Avg: 32.31 / Max: 32.33Min: 32.11 / Avg: 32.13 / Max: 32.14Min: 28.15 / Avg: 28.15 / Max: 28.161. (CC) gcc options: -lm -lpthread -O3

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 SamplesLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122350100150200250SE +/- 0.00, N = 3SE +/- 2.33, N = 3SE +/- 0.33, N = 3SE +/- 0.00, N = 32172273838-march=native-march=native-march=native1. (CXX) g++ options: -fopenmp -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212234080120160200Min: 217 / Avg: 217 / Max: 217Min: 225 / Avg: 227.33 / Max: 232Min: 38 / Avg: 38.33 / Max: 39Min: 38 / Avg: 38 / Max: 381. (CXX) g++ options: -fopenmp -O3

LAME MP3 Encoding

LAME is an MP3 encoder licensed under the LGPL. This test measures the time required to encode a WAV file to MP3 format. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3LLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.02, N = 513.8913.3413.7613.46
OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3LLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620Min: 13.87 / Avg: 13.89 / Max: 13.91Min: 13.31 / Avg: 13.34 / Max: 13.38Min: 13.74 / Avg: 13.76 / Max: 13.77Min: 13.42 / Avg: 13.46 / Max: 13.54

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.0H.264 HD To NTSC DVLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620SE +/- 0.20, N = 3SE +/- 0.21, N = 3SE +/- 0.09, N = 3SE +/- 0.08, N = 317.0816.8416.5516.601. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2 -lrt
OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.0H.264 HD To NTSC DVLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620Min: 16.86 / Avg: 17.08 / Max: 17.48Min: 16.59 / Avg: 16.84 / Max: 17.25Min: 16.45 / Avg: 16.55 / Max: 16.72Min: 16.46 / Avg: 16.6 / Max: 16.731. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2 -lrt

Tachyon

OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total TimeLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212233691215SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 311.0311.1513.0613.031. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total TimeLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122348121620Min: 11.01 / Avg: 11.03 / Max: 11.05Min: 11.13 / Avg: 11.15 / Max: 11.19Min: 13.04 / Avg: 13.06 / Max: 13.1Min: 13 / Avg: 13.03 / Max: 13.051. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread

OpenSSL

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.1cRSA 4096-bit PerformanceLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 20121223306090120150SE +/- 0.34, N = 3SE +/- 0.15, N = 3SE +/- 0.12, N = 3SE +/- 0.09, N = 3129.57130.37130.73130.571. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl
OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.1cRSA 4096-bit PerformanceLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 2012122320406080100Min: 128.9 / Avg: 129.57 / Max: 130Min: 130.1 / Avg: 130.37 / Max: 130.6Min: 130.5 / Avg: 130.73 / Max: 130.9Min: 130.4 / Avg: 130.57 / Max: 130.71. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl

NGINX Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterNGINX Benchmark 1.0.11Static Web Page ServingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212238K16K24K32K40KSE +/- 54.40, N = 3SE +/- 266.37, N = 3SE +/- 69.09, N = 3SE +/- 182.99, N = 336541.4136743.9336874.6736709.661. (CC) gcc options: -lpthread -lcrypt -lcrypto -lz
OpenBenchmarking.orgRequests Per Second, More Is BetterNGINX Benchmark 1.0.11Static Web Page ServingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212236K12K18K24K30KMin: 36475.62 / Avg: 36541.41 / Max: 36649.35Min: 36251.6 / Avg: 36743.93 / Max: 37166.35Min: 36770.15 / Avg: 36874.67 / Max: 37005.21Min: 36345.64 / Avg: 36709.66 / Max: 36924.431. (CC) gcc options: -lpthread -lcrypt -lcrypto -lz

Apache Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.3Static Web Page ServingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212237K14K21K28K35KSE +/- 289.39, N = 3SE +/- 215.45, N = 3SE +/- 315.04, N = 3SE +/- 211.88, N = 331339.1931118.5231218.7231010.59-march=native-march=native-march=native1. (CC) gcc options: -shared -fPIC -pthread -O3
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.3Static Web Page ServingLLVM Clang 3.1LLVM Clang 3.2GCC 4.7.2GCC 4.8.0 201212235K10K15K20K25KMin: 30949.31 / Avg: 31339.19 / Max: 31904.57Min: 30777.67 / Avg: 31118.52 / Max: 31517.25Min: 30791.57 / Avg: 31218.72 / Max: 31833.42Min: 30588.14 / Avg: 31010.59 / Max: 31250.611. (CC) gcc options: -shared -fPIC -pthread -O3