LLVM Clang 3.3 vs. GCC 4.8 - Intel Core-AVX2 Haswell

Intel Core i7-4770K testing with a Intel DH87RL motherboard looking at the GCC 4.7, GCC 4.8, LLVM Clang 3.2, and LLVM Clang 3.3 compiler performance with core-avx2 Haswell optimizations. Intel Core i7 Haswell core-avx2 compiler benchmarks for a future article on Phoronix by Michael Larabel.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1307173-UT-1306206SO69
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GCC 4.7.3
June 20 2013
 
GCC 4.8.1
June 20 2013
 
LLVM Clang 3.2
June 20 2013
 
LLVM Clang 3.3
June 20 2013
 
AMD FX-8120 @ 4.0
July 17 2013
 
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GCC 4.7.3

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: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: GCC 4.7.3, File-System: ext4, Screen Resolution: 1920x1080

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

GCC 4.8.1

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: GCC 4.8.1, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 3.2

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: Clang 3.2 + LLVM 3.2svn, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (14:54:23); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi- freq ondemand

LLVM Clang 3.3

OS: Ubuntu 13.10, Kernel: 3.10.0-999-generic (x86_64), Desktop: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (12:21:18); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi- freq ondemand

AMD FX-8120 @ 4.0

Processor: AMD FX-8120 Eight-Core @ 4.00GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD ATI RD890 bridge, Memory: 8192MB, Disk: 1000GB Western Digital WD10EALX-009, Graphics: AMD Radeon HD 7800 2048MB (1050/1450MHz), Audio: Realtek ALC889, Monitor: B2430L, Network: Intel 82583V Gigabit Connection

OS: Slackware 14.0, Kernel: 3.9.9 (x86_64), Display Server: X Server 1.13.4, Display Driver: fglrx 13.10.10, OpenGL: 4.2.12337, Compiler: GCC 4.8.1 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --build=x86_64-slackware-linux --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-java-home --enable-languages=ada,c,c++,fortran,go,java,lto,objc --enable-libssp --enable-lto --enable-multilib --enable-objc-gc --enable-shared --enable-threads=posix --host=x86_64-slackware-linux --mandir=/usr/man --target=x86_64-slackware-linux --verbose --with-antlr-jar=/home/slackware/slackbuilds/gcc/antlr-runtime-3.4.jar --with-arch-directory=amd64 --with-gnu-ld --with-java-home=/usr/lib64/jvm/jre --with-jvm-jar-dir=/usr/lib64/jvm/jvm-exports --with-jvm-root-dir=/usr/lib64/jvm --with-python-dir=/lib64/python2.7/site-packages
Processor Notes: Scaling Governor: acpi- freq conservative

LLVM Clang 3.3 vs. GCC 4.8 - Intel Core-AVX2 HaswellProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0Intel 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)Unity 7.0.0X Server 1.13.3intel 2.21.93.0 Mesa 9.1.3GCC 4.7.3ext41920x1080GCC 4.8.1Clang 3.2 + LLVM 3.2svnClang 3.3 + LLVM 3.3AMD FX-8120 Eight-Core @ 4.00GHz (8 Cores)ASUS Crosshair V FormulaAMD ATI RD890 bridge8192MB1000GB Western Digital WD10EALX-009AMD Radeon HD 7800 2048MB (1050/1450MHz)Realtek ALC889B2430LIntel 82583V Gigabit ConnectionSlackware 14.03.9.9 (x86_64)X Server 1.13.4fglrx 13.10.104.2.12337GCC 4.8.1 + Clang 3.3 + LLVM 3.3OpenBenchmarking.orgCompiler Details- GCC 4.7.3: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran- GCC 4.8.1: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran- LLVM Clang 3.2: Optimized build; Built Jun 20 2013 (14:54:23); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64- LLVM Clang 3.3: Optimized build; Built Jun 20 2013 (12:21:18); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64- AMD FX-8120 @ 4.0: --build=x86_64-slackware-linux --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-java-home --enable-languages=ada,c,c++,fortran,go,java,lto,objc --enable-libssp --enable-lto --enable-multilib --enable-objc-gc --enable-shared --enable-threads=posix --host=x86_64-slackware-linux --mandir=/usr/man --target=x86_64-slackware-linux --verbose --with-antlr-jar=/home/slackware/slackbuilds/gcc/antlr-runtime-3.4.jar --with-arch-directory=amd64 --with-gnu-ld --with-java-home=/usr/lib64/jvm/jre --with-jvm-jar-dir=/usr/lib64/jvm/jvm-exports --with-jvm-root-dir=/usr/lib64/jvm --with-python-dir=/lib64/python2.7/site-packages Processor Details- GCC 4.7.3: Scaling Governor: acpi- freq ondemand- GCC 4.8.1: Scaling Governor: acpi- freq ondemand- LLVM Clang 3.2: Scaling Governor: acpi- freq ondemand- LLVM Clang 3.3: Scaling Governor: acpi- freq ondemand- AMD FX-8120 @ 4.0: Scaling Governor: acpi- freq conservative

GCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0Logarithmic Result OverviewPhoronix Test SuiteSmallptHimeno BenchmarkTSCPTimed PHP CompilationSciMarkBLAKE2C-RayApache BenchmarkTimed HMMer SearchTimed MAFFT Alignmentx264

LLVM Clang 3.3 vs. GCC 4.8 - Intel Core-AVX2 Haswellhmmer: Pfam Database Searchmafft: Multiple Sequence Alignmentblake2: Phoronix Test Suite v4.8.0m0scimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationtscp: AI Chess Performancex264: H.264 Video Encodinghimeno: Poisson Pressure Solverbuild-imagemagick: Time To Compilebuild-php: Time To Compilec-ray: Total Timeprimesieve: 1e12 Prime Number Generationsmallpt: Global Illumination Renderer; 100 Samplesencode-mp3: WAV To MP3ffmpeg: H.264 HD To NTSC DVtachyon: Total Timeapache: Static Web Page ServingGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.010.415.275.32450.21251.671177.861861.551163.52631626155.331663.9793.6732.9221.4579.362512.8625743.9910.305.175.30615.32245.001123.801773.351164.63599455156.341593.0978.6133.3017.0279.242512.8125786.1511.925.967.54615.04246.791234.191774.031670.77624323155.351532.5131.9419.5927.4614012.7412.7710.4425888.9510.946.197.45619.77237.861263.291827.341666.24624749153.151419.9034.3521.0327.03326.8514214.4513.1810.9825295.8213.076.469.14359.4270.04999.201750.14724.80303125148.51635.5535.7227.19172.4313220.9419.5818928.33OpenBenchmarking.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 SearchGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.03691215SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.18, N = 4SE +/- 0.07, N = 310.4110.3011.9210.9413.07-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3-O21. (CC) gcc options: -pthread -lhmmer -lsquid -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.048121620Min: 10.37 / Avg: 10.41 / Max: 10.44Min: 10.29 / Avg: 10.3 / Max: 10.3Min: 11.91 / Avg: 11.92 / Max: 11.93Min: 10.71 / Avg: 10.94 / Max: 11.47Min: 12.93 / Avg: 13.07 / Max: 13.151. (CC) gcc options: -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0246810SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.10, N = 3SE +/- 0.12, N = 3SE +/- 0.16, N = 65.275.175.966.196.461. (CC) gcc options: -O3 -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.03691215Min: 5.24 / Avg: 5.27 / Max: 5.3Min: 5.14 / Avg: 5.17 / Max: 5.23Min: 5.81 / Avg: 5.96 / Max: 6.14Min: 6.04 / Avg: 6.19 / Max: 6.44Min: 6.07 / Avg: 6.46 / Max: 7.041. (CC) gcc options: -O3 -lm -lpthread

BLAKE2

OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.8.0m0GCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.03691215SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.11, N = 3SE +/- 0.13, N = 4SE +/- 0.00, N = 35.325.307.547.459.141. (CC) gcc options: -std=gnu99 -O3 -march=native -lcrypto -lz
OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.8.0m0GCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.03691215Min: 5.32 / Avg: 5.32 / Max: 5.32Min: 5.29 / Avg: 5.3 / Max: 5.31Min: 7.41 / Avg: 7.54 / Max: 7.77Min: 7.19 / Avg: 7.45 / Max: 7.79Min: 9.14 / Avg: 9.14 / Max: 9.141. (CC) gcc options: -std=gnu99 -O3 -march=native -lcrypto -lz

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0130260390520650SE +/- 0.55, N = 4SE +/- 0.00, N = 4SE +/- 5.67, N = 4SE +/- 0.89, N = 4SE +/- 0.58, N = 4450.21615.32615.04619.77359.42
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0110220330440550Min: 449.26 / Avg: 450.21 / Max: 451.15Min: 615.32 / Avg: 615.32 / Max: 615.32Min: 598.18 / Avg: 615.04 / Max: 622.46Min: 617.09 / Avg: 619.77 / Max: 620.66Min: 357.91 / Avg: 359.42 / Max: 360.32

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.050100150200250SE +/- 0.68, N = 4SE +/- 0.34, N = 4SE +/- 1.60, N = 4SE +/- 0.98, N = 4SE +/- 0.63, N = 4251.67245.00246.79237.8670.04
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.050100150200250Min: 250.19 / Avg: 251.67 / Max: 253.15Min: 244.47 / Avg: 245 / Max: 245.87Min: 243.08 / Avg: 246.79 / Max: 249.46Min: 235.07 / Avg: 237.86 / Max: 239.67Min: 68.78 / Avg: 70.04 / Max: 71.78

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.030060090012001500SE +/- 0.85, N = 4SE +/- 5.13, N = 4SE +/- 30.06, N = 4SE +/- 5.09, N = 4SE +/- 7.67, N = 41177.861123.801234.191263.29999.20
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.02004006008001000Min: 1177.01 / Avg: 1177.86 / Max: 1180.4Min: 1113.04 / Avg: 1123.8 / Max: 1137.78Min: 1144.13 / Avg: 1234.19 / Max: 1268.11Min: 1248.78 / Avg: 1263.29 / Max: 1272.05Min: 979.9 / Avg: 999.2 / Max: 1013.86

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0400800120016002000SE +/- 1.88, N = 4SE +/- 1.48, N = 4SE +/- 36.01, N = 4SE +/- 22.59, N = 4SE +/- 6.33, N = 41861.551773.351774.031827.341750.14
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.030060090012001500Min: 1858.3 / Avg: 1861.55 / Max: 1864.8Min: 1771.87 / Avg: 1773.35 / Max: 1777.78Min: 1698.51 / Avg: 1774.03 / Max: 1871.35Min: 1760.18 / Avg: 1827.34 / Max: 1858.3Min: 1731.6 / Avg: 1750.14 / Max: 1760.18

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0400800120016002000SE +/- 1.28, N = 4SE +/- 1.11, N = 4SE +/- 0.00, N = 4SE +/- 1.85, N = 4SE +/- 0.99, N = 41163.521164.631670.771666.24724.80
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.030060090012001500Min: 1161.31 / Avg: 1163.52 / Max: 1165.73Min: 1161.31 / Avg: 1164.63 / Max: 1165.73Min: 1670.77 / Avg: 1670.77 / Max: 1670.77Min: 1661.71 / Avg: 1666.24 / Max: 1670.77Min: 723.08 / Avg: 724.8 / Max: 726.51

TSCP

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0140K280K420K560K700KSE +/- 0.00, N = 5SE +/- 520.60, N = 5SE +/- 141.40, N = 5SE +/- 480.04, N = 5SE +/- 190.28, N = 5631626599455624323624749303125
OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0110K220K330K440K550KMin: 631626 / Avg: 631626 / Max: 631626Min: 597373 / Avg: 599455.4 / Max: 599976Min: 623757 / Avg: 624322.6 / Max: 624464Min: 623052 / Avg: 624749.2 / Max: 625884Min: 302625 / Avg: 303124.8 / Max: 303793

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2013-06-08H.264 Video EncodingGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0306090120150SE +/- 0.33, N = 5SE +/- 0.40, N = 5SE +/- 0.60, N = 5SE +/- 0.58, N = 5SE +/- 0.66, N = 5155.33156.34155.35153.15148.51-march=core-avx2-march=core-avx2-march=core-avx2-march=core-avx21. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize
OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2013-06-08H.264 Video EncodingGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0306090120150Min: 154.07 / Avg: 155.33 / Max: 155.85Min: 155.39 / Avg: 156.34 / Max: 157.74Min: 153.67 / Avg: 155.35 / Max: 157.19Min: 151.67 / Avg: 153.15 / Max: 154.39Min: 146.64 / Avg: 148.51 / Max: 150.091. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize

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 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0400800120016002000SE +/- 0.19, N = 3SE +/- 20.45, N = 3SE +/- 2.02, N = 3SE +/- 13.80, N = 3SE +/- 1.68, N = 31663.971593.091532.511419.90635.55-march=core-avx2-march=core-avx2-march=core-avx2-march=core-avx21. (CC) gcc options: -O3
OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.030060090012001500Min: 1663.59 / Avg: 1663.97 / Max: 1664.22Min: 1552.32 / Avg: 1593.09 / Max: 1616.32Min: 1528.52 / Avg: 1532.51 / Max: 1535.02Min: 1394.78 / Avg: 1419.9 / Max: 1442.36Min: 633.68 / Avg: 635.55 / Max: 638.91. (CC) gcc options: -O3

Timed ImageMagick Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.8.1-10Time To CompileGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.320406080100SE +/- 0.60, N = 3SE +/- 0.07, N = 3SE +/- 0.12, N = 3SE +/- 0.37, N = 393.6778.6131.9434.35
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.8.1-10Time To CompileGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.320406080100Min: 92.9 / Avg: 93.67 / Max: 94.85Min: 78.5 / Avg: 78.61 / Max: 78.74Min: 31.81 / Avg: 31.94 / Max: 32.17Min: 33.71 / Avg: 34.35 / Max: 34.99

Timed PHP Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0816243240SE +/- 0.14, N = 3SE +/- 0.46, N = 3SE +/- 0.03, N = 3SE +/- 0.20, N = 3SE +/- 0.09, N = 332.9233.3019.5921.0335.72-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3 -lpthread-march=core-avx2 -O3-O21. (CC) gcc options: -pedantic -ldl -lz -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0816243240Min: 32.72 / Avg: 32.92 / Max: 33.2Min: 32.76 / Avg: 33.3 / Max: 34.23Min: 19.54 / Avg: 19.59 / Max: 19.64Min: 20.69 / Avg: 21.03 / Max: 21.38Min: 35.61 / Avg: 35.72 / Max: 35.911. (CC) gcc options: -pedantic -ldl -lz -lm

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 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0612182430SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.02, N = 321.4517.0227.4627.0327.19-march=core-avx2-march=core-avx2-march=core-avx2-march=core-avx21. (CC) gcc options: -lm -lpthread -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0612182430Min: 21.44 / Avg: 21.45 / Max: 21.47Min: 17.01 / Avg: 17.02 / Max: 17.03Min: 27.43 / Avg: 27.46 / Max: 27.49Min: 27.02 / Avg: 27.03 / Max: 27.04Min: 27.16 / Avg: 27.19 / Max: 27.241. (CC) gcc options: -lm -lpthread -O3

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.21e12 Prime Number GenerationGCC 4.7.3GCC 4.8.1LLVM Clang 3.3AMD FX-8120 @ 4.070140210280350SE +/- 0.06, N = 3SE +/- 0.08, N = 3SE +/- 2.08, N = 3SE +/- 0.05, N = 379.3679.24326.85172.43-fopenmp-fopenmp-fopenmp1. (CXX) g++ options: -O2
OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.21e12 Prime Number GenerationGCC 4.7.3GCC 4.8.1LLVM Clang 3.3AMD FX-8120 @ 4.060120180240300Min: 79.3 / Avg: 79.36 / Max: 79.47Min: 79.08 / Avg: 79.24 / Max: 79.36Min: 323.79 / Avg: 326.85 / Max: 330.82Min: 172.35 / Avg: 172.43 / Max: 172.531. (CXX) g++ options: -O2

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 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0306090120150SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 3SE +/- 1.33, N = 3SE +/- 0.33, N = 32525140142132-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O31. (CXX) g++ options: -fopenmp
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0306090120150Min: 25 / Avg: 25 / Max: 25Min: 24 / Avg: 24.67 / Max: 25Min: 140 / Avg: 140.33 / Max: 141Min: 141 / Avg: 142.33 / Max: 145Min: 132 / Avg: 132.33 / Max: 1331. (CXX) g++ options: -fopenmp

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 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0510152025SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.02, N = 512.7414.4520.94-march=core-avx2-march=core-avx2-fomit-frame-pointer -ffast-math -lncurses1. (CC) gcc options: -pipe -O3 -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0510152025Min: 12.72 / Avg: 12.74 / Max: 12.76Min: 14.44 / Avg: 14.45 / Max: 14.48Min: 20.89 / Avg: 20.94 / Max: 211. (CC) gcc options: -pipe -O3 -lm

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.1H.264 HD To NTSC DVGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.33691215SE +/- 0.08, N = 3SE +/- 0.06, N = 3SE +/- 0.04, N = 3SE +/- 0.12, N = 312.8612.8112.7713.18-fno-tree-vectorize -MF -MT-fno-tree-vectorize -MF -MT-Qunused-arguments-Qunused-arguments1. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2 -march=core-avx2 -O3 -std=c99 -fomit-frame-pointer -fno-math-errno -fno-signed-zeros -MMD
OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.1H.264 HD To NTSC DVGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.348121620Min: 12.71 / Avg: 12.86 / Max: 12.99Min: 12.75 / Avg: 12.81 / Max: 12.93Min: 12.7 / Avg: 12.77 / Max: 12.8Min: 13 / Avg: 13.18 / Max: 13.421. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2 -march=core-avx2 -O3 -std=c99 -fomit-frame-pointer -fno-math-errno -fno-signed-zeros -MMD

Tachyon

This is a test of the threaded Tachyon, a parallel ray-tracing system. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total TimeLLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0510152025SE +/- 0.06, N = 3SE +/- 0.24, N = 6SE +/- 0.02, N = 310.4410.9819.581. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total TimeLLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.0510152025Min: 10.36 / Avg: 10.44 / Max: 10.56Min: 10.48 / Avg: 10.98 / Max: 12.06Min: 19.54 / Avg: 19.58 / Max: 19.61. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread

Apache Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.3Static Web Page ServingGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.06K12K18K24K30KSE +/- 51.73, N = 3SE +/- 36.32, N = 3SE +/- 32.41, N = 3SE +/- 280.78, N = 3SE +/- 334.57, N = 325743.9925786.1525888.9525295.8218928.33-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3-march=core-avx2 -O3-O21. (CC) gcc options: -shared -fPIC -pthread
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.3Static Web Page ServingGCC 4.7.3GCC 4.8.1LLVM Clang 3.2LLVM Clang 3.3AMD FX-8120 @ 4.04K8K12K16K20KMin: 25641.04 / Avg: 25743.99 / Max: 25804.39Min: 25724.78 / Avg: 25786.15 / Max: 25850.49Min: 25834.28 / Avg: 25888.95 / Max: 25946.44Min: 24952.41 / Avg: 25295.82 / Max: 25852.31Min: 18488.03 / Avg: 18928.33 / Max: 19584.851. (CC) gcc options: -shared -fPIC -pthread

GCC 4.7.3

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: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: GCC 4.7.3, File-System: ext4, Screen Resolution: 1920x1080

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

Testing initiated at 20 June 2013 16:34 by user phoronix.

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: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: GCC 4.8.1, File-System: ext4, Screen Resolution: 1920x1080

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

Testing initiated at 20 June 2013 14:19 by user phoronix.

LLVM Clang 3.2

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: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: Clang 3.2 + LLVM 3.2svn, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (14:54:23); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi- freq ondemand

Testing initiated at 20 June 2013 15:11 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: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: intel 2.21.9, OpenGL: 3.0 Mesa 9.1.3, Compiler: Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: Optimized build; Built Jun 20 2013 (12:21:18); Default target: x86_64-unknown-linux-gnu; Host CPU: x86-64
Processor Notes: Scaling Governor: acpi- freq ondemand

Testing initiated at 20 June 2013 12:51 by user phoronix.

AMD FX-8120 @ 4.0

Processor: AMD FX-8120 Eight-Core @ 4.00GHz (8 Cores), Motherboard: ASUS Crosshair V Formula, Chipset: AMD ATI RD890 bridge, Memory: 8192MB, Disk: 1000GB Western Digital WD10EALX-009, Graphics: AMD Radeon HD 7800 2048MB (1050/1450MHz), Audio: Realtek ALC889, Monitor: B2430L, Network: Intel 82583V Gigabit Connection

OS: Slackware 14.0, Kernel: 3.9.9 (x86_64), Display Server: X Server 1.13.4, Display Driver: fglrx 13.10.10, OpenGL: 4.2.12337, Compiler: GCC 4.8.1 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --build=x86_64-slackware-linux --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-java-home --enable-languages=ada,c,c++,fortran,go,java,lto,objc --enable-libssp --enable-lto --enable-multilib --enable-objc-gc --enable-shared --enable-threads=posix --host=x86_64-slackware-linux --mandir=/usr/man --target=x86_64-slackware-linux --verbose --with-antlr-jar=/home/slackware/slackbuilds/gcc/antlr-runtime-3.4.jar --with-arch-directory=amd64 --with-gnu-ld --with-java-home=/usr/lib64/jvm/jre --with-jvm-jar-dir=/usr/lib64/jvm/jvm-exports --with-jvm-root-dir=/usr/lib64/jvm --with-python-dir=/lib64/python2.7/site-packages
Processor Notes: Scaling Governor: acpi- freq conservative

Testing initiated at 17 July 2013 19:17 by user marco.