EPYC 7642 Compiler GCC 10 vs. LLVM Clang 10 Benchmarking

AMD EPYC 7642 compiler testing by Michael Larabel for a future article.

HTML result view exported from: https://openbenchmarking.org/result/1911208-HU-EPYC7642C55&grr&sor.

EPYC 7642 Compiler GCC 10 vs. LLVM Clang 10 BenchmarkingProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverCompilerFile-SystemScreen ResolutionGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 GitAMD EPYC 7642 48-Core @ 2.30GHz (48 Cores / 96 Threads)ASRockRack EPYCD8 (P2.10 BIOS)AMD Starship/Matisse129024MB280GB INTEL SSDPED1D280GAllvmpipe 126GBAMD Starship/Matisse2 x Intel I350Ubuntu 19.105.3.0-050300-generic (x86_64)GNOME Shell 3.34.1X Server 1.20.5modesetting 1.20.5GCC 9.2.0ext41024x768GCC 10.0.0 20191117Clang 10.0.0OpenBenchmarking.orgEnvironment Details- CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"Compiler Details- GCC 9.2.0: --disable-multilib --enable-checking=release- GCC 10.0.0 20191117: --disable-multilib --enable-checking=release- LLVM Clang 10 Git: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver2 Processor Details- Scaling Governor: acpi-cpufreq ondemand - CPU Microcode: 0x830101cPython Details- Python 2.7.17rc1 + Python 3.7.5rc1Security Details- l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: always-on RSB filling

EPYC 7642 Compiler GCC 10 vs. LLVM Clang 10 Benchmarkingcpp-perf-bench: Rand Numberssvt-av1: Enc Mode 0 - 1080plibgav1: Chimera 1080p 10-bitfftw: Float + SSE - 2D FFT Size 4096cpp-perf-bench: Math Libraryhimeno: Poisson Pressure Solverlibgav1: Chimera 1080plibgav1: Summer Nature 4Kdav1d: Chimera 1080p 10-bitbuild-linux-kernel: Time To Compilepgbench: Buffer Test - Normal Load - Read Onlypgbench: Buffer Test - Normal Load - Read Writeaskap: tConvolve MT - Degriddingaskap: tConvolve MT - Griddingmrbayes: Primate Phylogeny Analysisvpxenc: vpxenc VP9 1080p Video Encodecpp-perf-bench: Stepanov Vectorcpp-perf-bench: Ctypesqlite-speedtest: Timed Time - Size 1,000cpp-perf-bench: Atolgraphics-magick: Resizinglibgav1: Summer Nature 1080pgraphics-magick: Noise-Gaussiangraphics-magick: Sharpengraphics-magick: Enhancedgraphics-magick: Swirlgraphics-magick: HWB Color Spacegraphics-magick: Rotateredis: SADDgromacs: Water Benchmarkbuild-llvm: Time To Compilecpp-perf-bench: Stepanov Abstractionredis: LPUSHredis: LPOPaobench: 2048 x 2048 - Total Timeredis: SETjohn-the-ripper: Blowfishscimark2: Compositecoremark: CoreMark Size 666 - Iterations Per Secondredis: GETcompress-xz: Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9openssl: RSA 4096-bit Performancecpp-perf-bench: Function Objectsdav1d: Chimera 1080pminife: Smallencode-flac: WAV To FLACc-ray: Total Time - 4K, 16 Rays Per Pixelmt-dgemm: Sustained Floating-Point Rateaskap: tConvolve OpenMP - Degriddingaskap: tConvolve OpenMP - Griddingsmallpt: Global Illumination Renderer; 128 Samplesdav1d: Summer Nature 4Kx265: H.265 1080p Video Encodingsvt-av1: Enc Mode 4 - 1080pxsbench: encode-mp3: WAV To MP3compress-zstd: Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19hmmer: Pfam Database Searchsvt-av1: Enc Mode 8 - 1080pdav1d: Summer Nature 1080pmafft: Multiple Sequence Alignmentx264: H.264 Video Encodingsvt-vp9: Visual Quality Optimized - Bosphorus 1080psvt-vp9: VMAF Optimized - Bosphorus 1080psvt-vp9: PSNR/SSIM Optimized - Bosphorus 1080ptscp: AI Chess Performancescimark2: Jacobi Successive Over-Relaxationscimark2: Dense LU Matrix Factorizationscimark2: Sparse Matrix Multiplyscimark2: Fast Fourier Transformscimark2: Monte CarloGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git1417.0400.06516.7216872354.4792487.75902139.4018.37102.1930.327589144.10705948273.1229155892.254387.84103.989155.85102.21740.55074.57375.90213855.72651573865167511705051703114.954.084145.49537.7491287761.02293158.0537.1791465273.92609052774.051589318.7267332216263.4422.35510301.119.701546.3619425.510.65313.53714.0628145187.246602.282.755273.9648.769.81064548459.0198.5467.56079.730588.192.234154.14293.33370.91375.8410337441748.118575.572755.87196.08594.611448.1470.06716.6517427346.3642844.33963939.2118.2834.551593115.57204348304.4659535962.814410.55102.197155.17100.81842.10475.87675.552187356.38634572786162410704811694281.304.075162.78337.5871387280.442237292.835.9781494027.97613612754.171664749.6905632029652.6222.19810290.618.39319314.910.76813.73413.8560286656.46946.855.12548.369.94264744838.5808.08781.0952.111152.23288.98372.91377.4610106021743.458484.972749.81197.88594.761706.4210.07116.91341.7443483.85535635.2016.2675.8142.671596205.48807348421.31126794.935160.4488.53638.66478.48276.19911350.76251321452045161645122.77131.3334.8381372099.012155677.5841.3571494870.6714682800.491283555.6892962158757.8322.4137550.719.470575.089.49821.836279.1148.9210.40010.4048.6675.87187.139595.622.196154.61298.55379.36382.3611337551607.888231.473341.43218.85602.82OpenBenchmarking.org

CppPerformanceBenchmarks

Test: Random Numbers

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Random NumbersGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git400800120016002000SE +/- 0.19, N = 3SE +/- 0.03, N = 3SE +/- 0.07, N = 31417.041448.151706.421. (CXX) g++ options: -O3 -march=native -std=c++11

SVT-AV1

Encoder Mode: Enc Mode 0 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 0 - Input: 1080pLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.00.0160.0320.0480.0640.08SE +/- 0.000, N = 9SE +/- 0.000, N = 9SE +/- 0.000, N = 60.0710.0670.0651. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

libgav1

Video Input: Chimera 1080p 10-bit

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Chimera 1080p 10-bitLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 2019111748121620SE +/- 0.02, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 316.9116.7216.651. (CXX) g++ options: -O3 -march=native -lpthread

FFTW

Build: Float + SSE - Size: 2D FFT Size 4096

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 4096GCC 10.0.0 20191117GCC 9.2.04K8K12K16K20KSE +/- 113.29, N = 3SE +/- 28.26, N = 317427168721. (CC) gcc options: -pthread -O3 -march=native -lm

CppPerformanceBenchmarks

Test: Math Library

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Math LibraryLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.080160240320400SE +/- 0.16, N = 3SE +/- 0.22, N = 3SE +/- 0.78, N = 3341.74346.36354.481. (CXX) g++ options: -O3 -march=native -std=c++11

Himeno Benchmark

Poisson Pressure Solver

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.07001400210028003500SE +/- 45.52, N = 15SE +/- 4.44, N = 3SE +/- 66.64, N = 153483.862844.342487.761. (CC) gcc options: -O3 -march=native -mavx2

libgav1

Video Input: Chimera 1080p

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Chimera 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git918273645SE +/- 0.04, N = 3SE +/- 0.06, N = 3SE +/- 0.09, N = 339.4039.2135.201. (CXX) g++ options: -O3 -march=native -lpthread

libgav1

Video Input: Summer Nature 4K

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Summer Nature 4KGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git510152025SE +/- 0.02, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 318.3718.2816.261. (CXX) g++ options: -O3 -march=native -lpthread

dav1d

Video Input: Chimera 1080p 10-bit

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Chimera 1080p 10-bitGCC 9.2.0LLVM Clang 10 Git20406080100SE +/- 0.21, N = 3SE +/- 0.06, N = 3102.1975.81MIN: 67.61 / MAX: 169.03MIN: 50.99 / MAX: 121.261. (CC) gcc options: -O3 -march=native -pthread

Timed Linux Kernel Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 5.4Time To CompileGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git1020304050SE +/- 0.24, N = 13SE +/- 0.35, N = 8SE +/- 0.32, N = 1430.3334.5542.67

PostgreSQL pgbench

Scaling: Buffer Test - Test: Normal Load - Mode: Read Only

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 12.0Scaling: Buffer Test - Test: Normal Load - Mode: Read OnlyLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.0130K260K390K520K650KSE +/- 1073.83, N = 3SE +/- 467.85, N = 3SE +/- 986.51, N = 3596205.49593115.57589144.111. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Normal Load - Mode: Read Write

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 12.0Scaling: Buffer Test - Test: Normal Load - Mode: Read WriteLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.010K20K30K40K50KSE +/- 21.66, N = 3SE +/- 19.13, N = 3SE +/- 43.17, N = 348421.3148304.4748273.121. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

ASKAP

Test: tConvolve MT - Degridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve MT - DegriddingGCC 10.0.0 20191117GCC 9.2.013002600390052006500SE +/- 1.85, N = 3SE +/- 3.14, N = 35962.815892.251. (CXX) g++ options: -lpthread

ASKAP

Test: tConvolve MT - Gridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve MT - GriddingGCC 10.0.0 20191117GCC 9.2.09001800270036004500SE +/- 2.82, N = 3SE +/- 4.79, N = 34410.554387.841. (CXX) g++ options: -lpthread

Timed MrBayes Analysis

Primate Phylogeny Analysis

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MrBayes Analysis 3.2.7Primate Phylogeny AnalysisLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.020406080100SE +/- 0.14, N = 3SE +/- 0.11, N = 3SE +/- 1.63, N = 394.94102.20103.99-mabm-mabm1. (CC) gcc options: -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -msse4a -msha -maes -mavx -mfma -mavx2 -mrdrnd -mbmi -mbmi2 -madx -O3 -std=c99 -pedantic -march=native -lm

VP9 libvpx Encoding

vpxenc VP9 1080p Video Encode

OpenBenchmarking.orgFrames Per Second, More Is BetterVP9 libvpx Encoding 1.8.1vpxenc VP9 1080p Video EncodeLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911174080120160200SE +/- 0.22, N = 3SE +/- 0.16, N = 3SE +/- 0.59, N = 3160.44155.85155.171. (CXX) g++ options: -m64 -lm -lpthread -O3 -march=native -fPIC -U_FORTIFY_SOURCE -std=c++11

CppPerformanceBenchmarks

Test: Stepanov Vector

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov VectorLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.020406080100SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 388.54100.82102.221. (CXX) g++ options: -O3 -march=native -std=c++11

CppPerformanceBenchmarks

Test: Ctype

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: CtypeLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911171020304050SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.77, N = 1538.6640.5542.101. (CXX) g++ options: -O3 -march=native -std=c++11

SQLite Speedtest

Timed Time - Size 1,000

OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite Speedtest 3.30Timed Time - Size 1,000GCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git20406080100SE +/- 0.09, N = 3SE +/- 0.13, N = 3SE +/- 0.03, N = 374.5775.8878.481. (CC) gcc options: -O3 -march=native -ldl -lz -lpthread

CppPerformanceBenchmarks

Test: Atol

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: AtolGCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git20406080100SE +/- 0.22, N = 3SE +/- 0.17, N = 3SE +/- 0.18, N = 375.5575.9076.201. (CXX) g++ options: -O3 -march=native -std=c++11

GraphicsMagick

Operation: Resizing

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: ResizingGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git5001000150020002500SE +/- 27.63, N = 5SE +/- 30.90, N = 321381873113-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

libgav1

Video Input: Summer Nature 1080p

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Summer Nature 1080pGCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git1326395265SE +/- 0.16, N = 3SE +/- 0.14, N = 3SE +/- 0.15, N = 356.3855.7250.761. (CXX) g++ options: -O3 -march=native -lpthread

GraphicsMagick

Operation: Noise-Gaussian

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: Noise-GaussianGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git140280420560700SE +/- 1.86, N = 365163425-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

GraphicsMagick

Operation: Sharpen

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: SharpenGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git12024036048060057357213-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

GraphicsMagick

Operation: Enhanced

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: EnhancedGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git2004006008001000SE +/- 0.67, N = 3SE +/- 0.33, N = 386578621-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

GraphicsMagick

Operation: Swirl

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: SwirlGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git400800120016002000SE +/- 3.18, N = 3SE +/- 1.53, N = 31675162445-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

GraphicsMagick

Operation: HWB Color Space

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: HWB Color SpaceGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git30060090012001500SE +/- 4.04, N = 3SE +/- 1.53, N = 311701070204-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

GraphicsMagick

Operation: Rotate

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: RotateLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 20191117110220330440550SE +/- 2.96, N = 3SE +/- 0.67, N = 3516505481-fopenmp-fopenmp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -lwebpmux -ltiff -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lxml2 -lz -lm -lpthread

Redis

Test: SADD

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: SADDGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git400K800K1200K1600K2000KSE +/- 28492.65, N = 15SE +/- 24277.91, N = 15SE +/- 33951.29, N = 151703114.951694281.301645122.771. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

GROMACS

Water Benchmark

OpenBenchmarking.orgNs Per Day, More Is BetterGROMACS 2019.4Water BenchmarkGCC 9.2.0GCC 10.0.0 201911170.91891.83782.75673.67564.5945SE +/- 0.001, N = 3SE +/- 0.006, N = 34.0844.0751. (CXX) g++ options: -mavx2 -mfma -O3 -march=native -std=c++11 -funroll-all-loops -pthread -lrt -lpthread -lm

Timed LLVM Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 6.0.1Time To CompileLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911174080120160200131.33145.50162.78

CppPerformanceBenchmarks

Test: Stepanov Abstraction

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov AbstractionLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.0918273645SE +/- 0.39, N = 6SE +/- 0.01, N = 3SE +/- 0.01, N = 334.8437.5937.751. (CXX) g++ options: -O3 -march=native -std=c++11

Redis

Test: LPUSH

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: LPUSHGCC 10.0.0 20191117LLVM Clang 10 GitGCC 9.2.0300K600K900K1200K1500KSE +/- 18234.45, N = 15SE +/- 18364.34, N = 15SE +/- 11571.16, N = 31387280.441372099.011287761.001. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

Redis

Test: LPOP

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: LPOPGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git500K1000K1500K2000K2500KSE +/- 38584.75, N = 15SE +/- 13200.64, N = 3SE +/- 34458.33, N = 152293158.052237292.802155677.581. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

AOBench

Size: 2048 x 2048 - Total Time

OpenBenchmarking.orgSeconds, Fewer Is BetterAOBenchSize: 2048 x 2048 - Total TimeGCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git918273645SE +/- 0.12, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 335.9837.1841.361. (CC) gcc options: -lm -O3 -march=native

Redis

Test: SET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: SETLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.0300K600K900K1200K1500KSE +/- 25369.83, N = 3SE +/- 24405.72, N = 12SE +/- 22520.49, N = 151494870.671494027.971465273.921. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

John The Ripper

Test: Blowfish

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.9.0-jumbo-1Test: BlowfishGCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git13K26K39K52K65KSE +/- 27.14, N = 3SE +/- 11.24, N = 361361609051468-fopenmp-fopenmp1. (CC) gcc options: -m64 -lssl -lcrypto -lgmp -pthread -lm -lz -ldl -lcrypt -lbz2

SciMark

Computational Test: Composite

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911176001200180024003000SE +/- 4.31, N = 3SE +/- 3.13, N = 3SE +/- 9.84, N = 32800.492774.052754.171. (CC) gcc options: -O3 -march=native -lm

Coremark

CoreMark Size 666 - Iterations Per Second

OpenBenchmarking.orgIterations/Sec, More Is BetterCoremark 1.0CoreMark Size 666 - Iterations Per SecondGCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git400K800K1200K1600K2000KSE +/- 2856.66, N = 3SE +/- 1399.84, N = 3SE +/- 6972.36, N = 31664749.691589318.731283555.691. (CC) gcc options: -O2 -O3 -march=native -lrt" -lrt

Redis

Test: GET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: GETGCC 9.2.0LLVM Clang 10 GitGCC 10.0.0 20191117500K1000K1500K2000K2500KSE +/- 32908.04, N = 4SE +/- 22857.27, N = 3SE +/- 38824.38, N = 152216263.442158757.832029652.621. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

XZ Compression

Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9

OpenBenchmarking.orgSeconds, Fewer Is BetterXZ Compression 5.2.4Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9GCC 10.0.0 20191117GCC 9.2.0LLVM Clang 10 Git510152025SE +/- 0.13, N = 3SE +/- 0.16, N = 3SE +/- 0.16, N = 322.2022.3622.411. (CC) gcc options: -pthread -fvisibility=hidden -O3 -march=native

OpenSSL

RSA 4096-bit Performance

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.1.1RSA 4096-bit PerformanceGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git2K4K6K8K10KSE +/- 2.79, N = 3SE +/- 6.05, N = 3SE +/- 3.88, N = 310301.110290.67550.7-Qunused-arguments1. (CC) gcc options: -pthread -m64 -O3 -march=native -lssl -lcrypto -ldl

CppPerformanceBenchmarks

Test: Function Objects

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Function ObjectsGCC 10.0.0 20191117LLVM Clang 10 GitGCC 9.2.0510152025SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 318.3919.4719.701. (CXX) g++ options: -O3 -march=native -std=c++11

dav1d

Video Input: Chimera 1080p

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Chimera 1080pLLVM Clang 10 GitGCC 9.2.0120240360480600SE +/- 2.02, N = 3SE +/- 0.79, N = 3575.08546.36MIN: 353.68 / MAX: 718.09MIN: 345.34 / MAX: 673.271. (CC) gcc options: -O3 -march=native -pthread

miniFE

Problem Size: Small

OpenBenchmarking.orgCG Mflops, More Is BetterminiFE 2.2Problem Size: SmallGCC 9.2.0GCC 10.0.0 201911174K8K12K16K20KSE +/- 2.61, N = 3SE +/- 7.36, N = 319425.519314.91. (CXX) g++ options: -O3 -fopenmp -pthread -lmpi_cxx -lmpi

FLAC Audio Encoding

WAV To FLAC

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.2WAV To FLACLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911173691215SE +/- 0.009, N = 5SE +/- 0.007, N = 5SE +/- 0.008, N = 59.49810.65310.768-fvisibility=hidden-fvisibility=hidden1. (CXX) g++ options: -O3 -march=native -logg -lm

C-Ray

Total Time - 4K, 16 Rays Per Pixel

OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total Time - 4K, 16 Rays Per PixelGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git510152025SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.04, N = 313.5413.7321.841. (CC) gcc options: -lm -lpthread -O3 -march=native

ACES DGEMM

Sustained Floating-Point Rate

OpenBenchmarking.orgGFLOP/s, More Is BetterACES DGEMM 1.0Sustained Floating-Point RateGCC 9.2.0GCC 10.0.0 2019111748121620SE +/- 0.19, N = 3SE +/- 0.09, N = 314.0613.861. (CC) gcc options: -O3 -march=native -fopenmp

ASKAP

Test: tConvolve OpenMP - Degridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve OpenMP - DegriddingGCC 10.0.0 20191117GCC 9.2.014002800420056007000SE +/- 0.00, N = 3SE +/- 33.47, N = 36656.405187.241. (CXX) g++ options: -lpthread

ASKAP

Test: tConvolve OpenMP - Gridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve OpenMP - GriddingGCC 10.0.0 20191117GCC 9.2.015003000450060007500SE +/- 59.89, N = 3SE +/- 54.12, N = 36946.856602.281. (CXX) g++ options: -lpthread

Smallpt

Global Illumination Renderer; 128 Samples

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 128 SamplesGCC 9.2.0GCC 10.0.0 201911171.15312.30623.45934.61245.7655SE +/- 0.031, N = 3SE +/- 0.281, N = 152.7555.1251. (CXX) g++ options: -fopenmp -O3 -march=native

dav1d

Video Input: Summer Nature 4K

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 4KLLVM Clang 10 GitGCC 9.2.060120180240300SE +/- 0.20, N = 3SE +/- 0.54, N = 3279.11273.96MIN: 127.8 / MAX: 303.17MIN: 129.55 / MAX: 296.841. (CC) gcc options: -O3 -march=native -pthread

x265

H.265 1080p Video Encoding

OpenBenchmarking.orgFrames Per Second, More Is Betterx265 3.1.2H.265 1080p Video EncodingLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911171122334455SE +/- 0.11, N = 3SE +/- 0.12, N = 3SE +/- 0.11, N = 348.9248.7648.361. (CXX) g++ options: -O3 -march=native -rdynamic -lpthread -lrt -ldl -lnuma

SVT-AV1

Encoder Mode: Enc Mode 4 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 4 - Input: 1080pLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.03691215SE +/- 0.072, N = 3SE +/- 0.022, N = 3SE +/- 0.061, N = 310.4009.9429.8101. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

Xsbench

OpenBenchmarking.orgLookups/s, More Is BetterXsbench 2017-07-06GCC 10.0.0 20191117GCC 9.2.01.4M2.8M4.2M5.6M7MSE +/- 1920.71, N = 3SE +/- 3588.47, N = 3647448364548451. (CC) gcc options: -std=gnu99 -fopenmp -O3 -lm

LAME MP3 Encoding

WAV To MP3

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.100WAV To MP3GCC 9.2.0LLVM Clang 10 Git3691215SE +/- 0.001, N = 3SE +/- 0.003, N = 39.01910.404-ffast-math -funroll-loops -fschedule-insns2 -fbranch-count-reg -fforce-addr1. (CC) gcc options: -O3 -pipe -march=native -lncurses -lm

Zstd Compression

Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19

OpenBenchmarking.orgSeconds, Fewer Is BetterZstd Compression 1.3.4Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19GCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git246810SE +/- 0.020, N = 3SE +/- 0.006, N = 3SE +/- 0.011, N = 38.5468.5808.6671. (CC) gcc options: -O3 -march=native -pthread -lz -llzma

Timed HMMer Search

Pfam Database Search

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 20191117246810SE +/- 0.085, N = 3SE +/- 0.052, N = 3SE +/- 0.035, N = 35.8717.5608.0871. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

SVT-AV1

Encoder Mode: Enc Mode 8 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 8 - Input: 1080pLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.020406080100SE +/- 0.17, N = 3SE +/- 0.03, N = 3SE +/- 0.31, N = 387.1481.1079.731. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

dav1d

Video Input: Summer Nature 1080p

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 1080pLLVM Clang 10 GitGCC 9.2.0130260390520650SE +/- 1.70, N = 3SE +/- 1.75, N = 3595.62588.19MIN: 260.63 / MAX: 664.58MIN: 266.11 / MAX: 655.781. (CC) gcc options: -O3 -march=native -pthread

Timed MAFFT Alignment

Multiple Sequence Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 7.392Multiple Sequence AlignmentGCC 10.0.0 20191117LLVM Clang 10 GitGCC 9.2.00.50271.00541.50812.01082.5135SE +/- 0.030, N = 15SE +/- 0.032, N = 2SE +/- 0.006, N = 22.1112.1962.2341. (CC) gcc options: -std=c99 -O3 -lm -lpthread

x264

H.264 Video Encoding

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2018-09-25H.264 Video EncodingLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 20191117306090120150SE +/- 0.22, N = 3SE +/- 0.96, N = 3SE +/- 1.50, N = 3154.61154.14152.23-mstack-alignment=641. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -march=native -std=gnu99 -fPIC -fomit-frame-pointer -fno-tree-vectorize

SVT-VP9

Tuning: Visual Quality Optimized - Input: Bosphorus 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: Visual Quality Optimized - Input: Bosphorus 1080pLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 2019111770140210280350SE +/- 4.64, N = 3SE +/- 1.87, N = 3SE +/- 2.79, N = 3298.55293.33288.981. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

SVT-VP9

Tuning: VMAF Optimized - Input: Bosphorus 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: VMAF Optimized - Input: Bosphorus 1080pLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.080160240320400SE +/- 1.42, N = 3SE +/- 1.14, N = 3SE +/- 1.11, N = 3379.36372.91370.911. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

SVT-VP9

Tuning: PSNR/SSIM Optimized - Input: Bosphorus 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: PSNR/SSIM Optimized - Input: Bosphorus 1080pLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.080160240320400SE +/- 2.39, N = 3SE +/- 1.93, N = 3SE +/- 5.05, N = 3382.36377.46375.841. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

TSCP

AI Chess Performance

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 20191117200K400K600K800K1000KSE +/- 467.20, N = 5SE +/- 725.51, N = 5SE +/- 586.45, N = 51133755103374410106021. (CC) gcc options: -O3 -march=native

SciMark

Computational Test: Jacobi Successive Over-Relaxation

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git400800120016002000SE +/- 0.22, N = 3SE +/- 0.26, N = 3SE +/- 0.06, N = 31748.111743.451607.881. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Dense LU Matrix Factorization

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git2K4K6K8K10KSE +/- 6.90, N = 3SE +/- 44.47, N = 3SE +/- 22.64, N = 38575.578484.978231.471. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Sparse Matrix Multiply

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 10 GitGCC 9.2.0GCC 10.0.0 201911177001400210028003500SE +/- 3.59, N = 3SE +/- 9.11, N = 3SE +/- 7.23, N = 33341.432755.872749.811. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Fast Fourier Transform

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.050100150200250SE +/- 0.42, N = 3SE +/- 0.29, N = 3SE +/- 0.17, N = 3218.85197.88196.081. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Monte Carlo

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLLVM Clang 10 GitGCC 10.0.0 20191117GCC 9.2.0130260390520650SE +/- 0.16, N = 3SE +/- 0.14, N = 3SE +/- 0.03, N = 3602.82594.76594.611. (CC) gcc options: -O3 -march=native -lm

Phoronix Test Suite v10.8.5