GCC vs. LLVM Clang 3.8 3.9 Compiler Benchmarking

Benchmarks by Michael Larabel for a future article on phoronix looking at early GCC 7 compiler performance compared to GCC 6 and GCC 5 and then LLVM Clang 3.8 and Clang 3.9.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1609139-LO-GCCCLANG151
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GCC 5.4.0
September 09 2016
 
GCC 6.2.0
September 10 2016
 
GCC 7.0.0 20160904
September 10 2016
 
Clang 3.8.0
September 12 2016
 
Clang 3.9.0
September 12 2016
 
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GCC 5.4.0

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 5.4.0, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

GCC 6.2.0

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 6.2.0, File-System: ext4, Screen Resolution: 1024x768

GCC 7.0.0 20160904

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 7.0.0 20160904, File-System: ext4, Screen Resolution: 1024x768

Clang 3.8.0

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: Clang 3.8.0-2ubuntu4, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Clang 3.9.0

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: Clang 3.9.0-svn279689-1~exp1, File-System: ext4, Screen Resolution: 1024x768

GCC vs. LLVM Clang 3.8 3.9 Compiler BenchmarkingOpenBenchmarking.orgPhoronix Test SuiteIntel Xeon E5-2609 v4 @ 1.70GHz (8 Cores)MSI X99A WORKSTATION (MS-7A54) v1.0Intel Xeon E7 v4/Xeon16384MB3 x 120GB TOSHIBA-TR150LLVMpipeRealtek ALC1150Intel ConnectionUbuntu 16.044.8.0-999-generic (x86_64) 20160908Unity 7.4.0X Server 1.18.3modesetting 1.18.33.3 Mesa 11.2.0 Gallium 0.4GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0-2ubuntu4Clang 3.9.0-svn279689-1~exp1ext41024x768ProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionGCC Vs. LLVM Clang 3.8 3.9 Compiler Benchmarking PerformanceSystem Logs- LIBGL_ALWAYS_SOFTWARE=1- GCC 5.4.0, GCC 6.2.0, GCC 7.0.0 20160904: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran - CFQ / data=ordered,errors=remount-ro,relatime,rw- Scaling Governor: intel_pstate powersave

GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0Result OverviewPhoronix Test Suite100%127%155%182%209%C-RayHimeno BenchmarkTimed ImageMagick CompilationTimed MAFFT AlignmentTimed PHP CompilationHierarchical INTegrationLAME MP3 EncodingSciMarkTimed HMMer SearchebizzyOpenSSLFhourstonesApache BenchmarkFFTWBullet Physics EngineRedisPostgreSQL pgbenchFLAC Audio Encoding

GCC vs. LLVM Clang 3.8 3.9 Compiler Benchmarkingapache: Static Web Page Servinghint: FLOATredis: SETredis: GETpgbench: Buffer Test - Single Thread - Read Writepgbench: Buffer Test - Normal Load - Read Writeopenssl: RSA 4096-bit Performancen-queens: Elapsed Timeencode-mp3: WAV To MP3encode-flac: WAV To FLACbullet: 136 Ragdollsbullet: 3000 Fallbullet: Raytestssmallpt: Global Illumination Renderer; 100 Samplesc-ray: Total Timebuild-php: Time To Compilebuild-imagemagick: Time To Compileebizzy: Phoronix Test Suite v6.6.0himeno: Poisson Pressure Solverscimark2: Jacobi Successive Over-Relaxationscimark2: Dense LU Matrix Factorizationscimark2: Sparse Matrix Multiplyscimark2: Fast Fourier Transformscimark2: Monte Carloscimark2: Compositefhourstones: Complex Connect-4 Solvingmafft: Multiple Sequence Alignmenthmmer: Pfam Database Searchfftw: Float + SSE - 2D FFT Size 4096fftw: Float + SSE - 1D FFT Size 4096lammps: Rhodopsin ProteinGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.027564.72177738053.32969029.101434042.92552.554468.82569.3757.5322.8413.456.459.135.944721.3035.3167.21155360893.82571.651327.151047.40228.18304.10695.706954.675.9912.187410.501096672.0028383.22166219905.04972159.311408567.41546.214411.75569.2756.2122.4213.446.469.115.984721.2536.2594.511552731091.32572.051302.741280.02232.19304.07738.216884.936.4112.187515.981093629512.13165733740.33965269.601393442.96549.494437.25570.2052.5422.0313.456.409.015.963023.3636.5281.271556921095.90572.061596.901290.94239.27304.03800.646905.306.4512.227517.941095129812.18141990405.69925939.111342892.96538.444411.72566.8026.9413.266.899.576.2039.3428.4574.34152747748.09857.422936.851414.48223.71126.461111.787164.377.7412.376841.341035763.2227344.42143252876.20933433.871348061.04531.794356.38511.0727.4613.156.929.836.2144.4235.2578.45138671841.55856.352917.961448.22226.01126.431115.006563.477.2713.766923.641033162.30OpenBenchmarking.org

Apache Benchmark

This is a test of ab, which is the Apache benchmark program. This test profile measures how many requests per second a given system can sustain when carrying out 1,000,000 requests with 100 requests being carried out concurrently. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page ServingGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.06K12K18K24K30KSE +/- 80.36, N = 3SE +/- 236.47, N = 3SE +/- 81.85, N = 3SE +/- 52.16, N = 3SE +/- 518.63, N = 327564.7228383.2229512.1329812.1827344.421. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native

Hierarchical INTegration

OpenBenchmarking.orgQUIPs, More Is BetterHierarchical INTegration 1.0Test: FLOATGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.040M80M120M160M200MSE +/- 355658.03, N = 3SE +/- 165686.10, N = 3SE +/- 291268.73, N = 3SE +/- 15968.48, N = 3SE +/- 131098.46, N = 3177738053.32166219905.04165733740.33141990405.69143252876.201. (CC) gcc options: -O3 -march=native -lm

Redis

Redis is an open-source data structure server. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: SETGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0200K400K600K800K1000KSE +/- 4216.02, N = 3SE +/- 3624.82, N = 3SE +/- 2999.32, N = 3SE +/- 2474.98, N = 3SE +/- 2866.48, N = 3969029.10972159.31965269.60925939.11933433.87-std=gnu99 -pipe -g3 -O3 -funroll-loops -march=native1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: GETGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0300K600K900K1200K1500KSE +/- 2474.75, N = 3SE +/- 9042.38, N = 3SE +/- 5158.54, N = 3SE +/- 2621.93, N = 3SE +/- 15364.63, N = 31434042.921408567.411393442.961342892.961348061.04-std=gnu99 -pipe -g3 -O3 -funroll-loops -march=native1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

PostgreSQL pgbench

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.4.3Scaling: Buffer Test - Test: Single Thread - Mode: Read WriteGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0120240360480600SE +/- 5.89, N = 3SE +/- 1.53, N = 3SE +/- 0.66, N = 3SE +/- 14.62, N = 6SE +/- 1.42, N = 3552.55546.21549.49538.44531.79-pthreads -mthreads-pthreads -mthreads1. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -pthread -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.4.3Scaling: Buffer Test - Test: Normal Load - Mode: Read WriteGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.010002000300040005000SE +/- 33.84, N = 3SE +/- 67.37, N = 5SE +/- 85.01, N = 3SE +/- 78.63, N = 3SE +/- 68.11, N = 34468.824411.754437.254411.724356.38-pthreads -mthreads-pthreads -mthreads1. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -pthread -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

OpenSSL

OpenSSL is an open-source toolkit that implements SSL (Secure Sockets Layer) and TLS (Transport Layer Security) protocols. This test measures the RSA 4096-bit performance of OpenSSL. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.1gRSA 4096-bit PerformanceGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0120240360480600SE +/- 0.58, N = 3SE +/- 1.31, N = 3SE +/- 0.25, N = 3SE +/- 1.57, N = 3SE +/- 2.68, N = 3569.37569.27570.20566.80511.071. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl

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 5.4.0GCC 6.2.0GCC 7.0.0 201609041326395265SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 357.5356.2152.541. (CC) gcc options: -static -fopenmp -O3 -march=native

LAME MP3 Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0612182430SE +/- 0.01, N = 5SE +/- 0.03, N = 5SE +/- 0.01, N = 5SE +/- 0.04, N = 5SE +/- 0.04, N = 522.8422.4222.0326.9427.461. (CC) gcc options: -O3 -ffast-math -funroll-loops -fschedule-insns2 -fbranch-count-reg -fforce-addr -pipe -march=native -lm

FLAC Audio Encoding

This test times how long it takes to encode a sample WAV file to FLAC format three times. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLACGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.03691215SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 513.4513.4413.4513.2613.15-fvisibility=hidden-fvisibility=hidden-fvisibility=hidden1. (CXX) g++ options: -O3 -march=native -lm

Bullet Physics Engine

This is a benchmark of the Bullet Physics Engine. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 136 RagdollsGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0246810SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 36.456.466.406.896.921. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 FallGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.03691215SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 39.139.119.019.579.831. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: RaytestsGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0246810SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.05, N = 35.945.985.966.206.211. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Smallpt

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 5.4.0GCC 6.2.0GCC 7.0.0 201609041122334455SE +/- 0.33, N = 3SE +/- 0.88, N = 3SE +/- 0.00, N = 34747301. (CXX) g++ options: -fopenmp -O3 -march=native

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 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.01020304050SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.08, N = 3SE +/- 0.01, N = 321.3021.2523.3639.3444.421. (CC) gcc options: -lm -lpthread -O3 -march=native

Timed PHP Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0816243240SE +/- 0.06, N = 3SE +/- 0.09, N = 3SE +/- 0.05, N = 3SE +/- 0.17, N = 3SE +/- 0.40, N = 335.3136.2536.5228.4535.251. (CC) gcc options: -O3 -march=native -pedantic -ldl -lz -lm

Timed ImageMagick Compilation

This test times how long it takes to build ImageMagick. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.9.0Time To CompileGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.020406080100SE +/- 0.01, N = 3SE +/- 0.17, N = 3SE +/- 0.14, N = 3SE +/- 0.05, N = 3SE +/- 0.22, N = 367.2194.5181.2774.3478.45

ebizzy

This is a test of ebizzy, a program to generate workloads resembling web server workloads. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3Phoronix Test Suite v6.6.0GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.030K60K90K120K150KSE +/- 87.83, N = 3SE +/- 68.34, N = 3SE +/- 360.05, N = 3SE +/- 2308.58, N = 4SE +/- 392.88, N = 31553601552731556921527471386711. (CC) gcc options: -pthread -lpthread -O3 -march=native

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 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.02004006008001000SE +/- 0.49, N = 3SE +/- 1.34, N = 3SE +/- 0.65, N = 3SE +/- 0.07, N = 3SE +/- 1.07, N = 3893.821091.321095.90748.09841.551. (CC) gcc options: -O3 -march=native -mavx2

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: Jacobi Successive Over-RelaxationGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.02004006008001000SE +/- 0.41, N = 4SE +/- 0.00, N = 4SE +/- 0.01, N = 4SE +/- 0.01, N = 4SE +/- 0.04, N = 4571.65572.05572.06857.42856.351. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.06001200180024003000SE +/- 9.92, N = 4SE +/- 0.23, N = 4SE +/- 0.14, N = 4SE +/- 0.55, N = 4SE +/- 1.74, N = 41327.151302.741596.902936.852917.961. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.030060090012001500SE +/- 2.22, N = 4SE +/- 0.17, N = 4SE +/- 0.35, N = 4SE +/- 0.32, N = 4SE +/- 2.31, N = 41047.401280.021290.941414.481448.221. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.050100150200250SE +/- 0.13, N = 4SE +/- 0.38, N = 4SE +/- 0.16, N = 4SE +/- 0.36, N = 4SE +/- 1.03, N = 4228.18232.19239.27223.71226.011. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.070140210280350SE +/- 0.00, N = 4SE +/- 0.00, N = 4SE +/- 0.00, N = 4SE +/- 0.02, N = 4SE +/- 0.15, N = 4304.10304.07304.03126.46126.431. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.02004006008001000SE +/- 2.13, N = 4SE +/- 0.14, N = 4SE +/- 0.09, N = 4SE +/- 0.09, N = 4SE +/- 0.69, N = 4695.70738.21800.641111.781115.001. (CXX) g++ options: -O3 -march=native

Fhourstones

OpenBenchmarking.orgKpos / sec, More Is BetterFhourstones 3.1Complex Connect-4 SolvingGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.015003000450060007500SE +/- 5.88, N = 3SE +/- 11.54, N = 3SE +/- 10.00, N = 3SE +/- 0.87, N = 3SE +/- 2.59, N = 36954.676884.936905.307164.376563.471. (CC) gcc options: -O3

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.0246810SE +/- 0.03, N = 3SE +/- 0.19, N = 6SE +/- 0.10, N = 6SE +/- 0.14, N = 6SE +/- 0.17, N = 65.996.416.457.747.271. (CC) gcc options: -O3 -lm -lpthread

Timed HMMer Search

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.048121620SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.04, N = 312.1812.1812.2212.3713.761. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

FFTW

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.4Build: Float + SSE - Size: 2D FFT Size 4096GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.016003200480064008000SE +/- 43.96, N = 5SE +/- 22.70, N = 5SE +/- 15.43, N = 5SE +/- 36.82, N = 5SE +/- 16.42, N = 57410.507515.987517.946841.346923.641. (CC) gcc options: -O3 -march=native -lm

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.4Build: Float + SSE - Size: 1D FFT Size 4096GCC 5.4.0GCC 6.2.0GCC 7.0.0 20160904Clang 3.8.0Clang 3.9.02K4K6K8K10KSE +/- 68.86, N = 5SE +/- 44.65, N = 5SE +/- 50.75, N = 5SE +/- 40.65, N = 5SE +/- 39.29, N = 510966109361095110357103311. (CC) gcc options: -O3 -march=native -lm

LAMMPS Molecular Dynamics Simulator

LAMMPS is a classical molecular dynamics code, and an acronym for Large-scale Atomic/Molecular Massively Parallel Simulator. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinGCC 5.4.0Clang 3.8.0Clang 3.9.01632486480SE +/- 0.12, N = 3SE +/- 0.14, N = 3SE +/- 0.09, N = 372.0063.2262.301. (CXX) g++ options: -lfftw -lmpich

GCC 5.4.0

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 5.4.0, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 9 September 2016 22:57 by user phoronix.

GCC 6.2.0

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 6.2.0, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 10 September 2016 09:01 by user phoronix.

GCC 7.0.0 20160904

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: GCC 7.0.0 20160904, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Compiler Notes: --disable-multilib --enable-checking=release --enable-languages=c,c++,fortran
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 10 September 2016 15:58 by user phoronix.

Clang 3.8.0

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: Clang 3.8.0-2ubuntu4, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 12 September 2016 16:39 by user phoronix.

Clang 3.9.0

Processor: Intel Xeon E5-2609 v4 @ 1.70GHz (8 Cores), Motherboard: MSI X99A WORKSTATION (MS-7A54) v1.0, Chipset: Intel Xeon E7 v4/Xeon, Memory: 16384MB, Disk: 3 x 120GB TOSHIBA-TR150, Graphics: LLVMpipe, Audio: Realtek ALC1150, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.8.0-999-generic (x86_64) 20160908, Desktop: Unity 7.4.0, Display Server: X Server 1.18.3, Display Driver: modesetting 1.18.3, OpenGL: 3.3 Mesa 11.2.0 Gallium 0.4, Compiler: Clang 3.9.0-svn279689-1~exp1, File-System: ext4, Screen Resolution: 1024x768

Environment Notes: LIBGL_ALWAYS_SOFTWARE=1
Disk Notes: CFQ / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 12 September 2016 11:33 by user phoronix.