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.

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 Benchmarkingminife: Smallfftw: Float + SSE - 2D FFT Size 4096mrbayes: Primate Phylogeny Analysishmmer: Pfam Database Searchmafft: Multiple Sequence Alignmentlibgav1: Chimera 1080plibgav1: Summer Nature 4Klibgav1: Summer Nature 1080plibgav1: Chimera 1080p 10-bitscimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationtscp: AI Chess Performancejohn-the-ripper: Blowfishgraphics-magick: Swirlgraphics-magick: Rotategraphics-magick: Sharpengraphics-magick: Enhancedgraphics-magick: Resizinggraphics-magick: Noise-Gaussiangraphics-magick: HWB Color Spacedav1d: Chimera 1080pdav1d: Summer Nature 4Kdav1d: Summer Nature 1080pdav1d: Chimera 1080p 10-bitsvt-av1: Enc Mode 0 - 1080psvt-av1: Enc Mode 4 - 1080psvt-av1: Enc Mode 8 - 1080psvt-vp9: VMAF Optimized - Bosphorus 1080psvt-vp9: PSNR/SSIM Optimized - Bosphorus 1080psvt-vp9: Visual Quality Optimized - Bosphorus 1080pvpxenc: vpxenc VP9 1080p Video Encodex264: H.264 Video Encodingx265: H.265 1080p Video Encodingmt-dgemm: Sustained Floating-Point Ratecoremark: CoreMark Size 666 - Iterations Per Secondhimeno: Poisson Pressure Solverbuild-linux-kernel: Time To Compilebuild-llvm: Time To Compilec-ray: Total Time - 4K, 16 Rays Per Pixelsmallpt: Global Illumination Renderer; 128 Samplesaobench: 2048 x 2048 - Total Timecompress-xz: Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9compress-zstd: Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19encode-flac: WAV To FLACencode-mp3: WAV To MP3openssl: RSA 4096-bit Performanceaskap: tConvolve MT - Griddingaskap: tConvolve MT - Degriddingaskap: tConvolve OpenMP - Griddingaskap: tConvolve OpenMP - Degriddinggromacs: Water Benchmarkpgbench: Buffer Test - Normal Load - Read Onlypgbench: Buffer Test - Normal Load - Read Writecpp-perf-bench: Atolcpp-perf-bench: Ctypecpp-perf-bench: Math Librarycpp-perf-bench: Rand Numberscpp-perf-bench: Stepanov Vectorcpp-perf-bench: Function Objectscpp-perf-bench: Stepanov Abstractionsqlite-speedtest: Timed Time - Size 1,000redis: LPOPredis: SADDredis: LPUSHredis: GETredis: SETxsbench: GCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git19425.516872103.9897.5602.23439.4018.3755.7216.722774.05594.61196.082755.878575.571748.11103374460905167550557386521386511170546.36273.96588.19102.190.0659.81079.730370.91375.84293.33155.85154.1448.7614.0628141589318.7267332487.75902130.327145.49513.5372.75537.17922.3558.54610.6539.01910301.14387.845892.256602.285187.244.084589144.10705948273.12291575.9040.550354.4791417.040102.21719.70137.74974.5732293158.051703114.951287761.02216263.441465273.92645484519314.917427102.1978.0872.11139.2118.2856.3816.652754.17594.76197.882749.818484.971743.451010602613611624481572786187363410700.0679.94281.095372.91377.46288.98155.17152.2348.3613.8560281664749.6905632844.33963934.551162.78313.7345.12535.97822.1988.58010.76810290.64410.555962.816946.856656.44.075593115.57204348304.46595375.55242.104346.3641448.147100.81818.39337.58775.8762237292.81694281.301387280.442029652.621494027.97647448394.9355.8712.19635.2016.2650.7616.912800.49602.82218.853341.438231.471607.881133755146845516132111325204575.08279.11595.6275.810.07110.40087.139379.36382.36298.55160.44154.6148.921283555.6892963483.85535642.671131.3321.83641.35722.4138.6679.49810.4047550.7596205.48807348421.31126776.19938.664341.7441706.42188.53619.47034.83878.4822155677.581645122.771372099.012158757.831494870.67OpenBenchmarking.org

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

FFTW

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

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 4096GCC 9.2.0GCC 10.0.0 201911174K8K12K16K20KSE +/- 28.26, N = 3SE +/- 113.29, N = 316872174271. (CC) gcc options: -pthread -O3 -march=native -lm

Timed MrBayes Analysis

Primate Phylogeny Analysis

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MrBayes Analysis 3.2.7Primate Phylogeny AnalysisGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git20406080100SE +/- 1.63, N = 3SE +/- 0.11, N = 3SE +/- 0.14, N = 3103.99102.2094.94-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

Timed HMMer Search

Pfam Database Search

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git246810SE +/- 0.052, N = 3SE +/- 0.035, N = 3SE +/- 0.085, N = 37.5608.0875.8711. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

Multiple Sequence Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 7.392Multiple Sequence AlignmentGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git0.50271.00541.50812.01082.5135SE +/- 0.006, N = 2SE +/- 0.030, N = 15SE +/- 0.032, N = 22.2342.1112.1961. (CC) gcc options: -std=c99 -O3 -lm -lpthread

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

libgav1

Video Input: Summer Nature 1080p

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Summer Nature 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git1326395265SE +/- 0.14, N = 3SE +/- 0.16, N = 3SE +/- 0.15, N = 355.7256.3850.761. (CXX) g++ options: -O3 -march=native -lpthread

libgav1

Video Input: Chimera 1080p 10-bit

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Chimera 1080p 10-bitGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git48121620SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.02, N = 316.7216.6516.911. (CXX) g++ options: -O3 -march=native -lpthread

SciMark

Computational Test: Composite

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git6001200180024003000SE +/- 3.13, N = 3SE +/- 9.84, N = 3SE +/- 4.31, N = 32774.052754.172800.491. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Monte Carlo

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git130260390520650SE +/- 0.03, N = 3SE +/- 0.14, N = 3SE +/- 0.16, N = 3594.61594.76602.821. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Fast Fourier Transform

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git50100150200250SE +/- 0.17, N = 3SE +/- 0.29, N = 3SE +/- 0.42, N = 3196.08197.88218.851. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Sparse Matrix Multiply

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git7001400210028003500SE +/- 9.11, N = 3SE +/- 7.23, N = 3SE +/- 3.59, N = 32755.872749.813341.431. (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: 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

TSCP

AI Chess Performance

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git200K400K600K800K1000KSE +/- 725.51, N = 5SE +/- 586.45, N = 5SE +/- 467.20, N = 51033744101060211337551. (CC) gcc options: -O3 -march=native

John The Ripper

Test: Blowfish

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.9.0-jumbo-1Test: BlowfishGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git13K26K39K52K65KSE +/- 11.24, N = 3SE +/- 27.14, N = 360905613611468-fopenmp-fopenmp1. (CC) gcc options: -m64 -lssl -lcrypto -lgmp -pthread -lm -lz -ldl -lcrypt -lbz2

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: Rotate

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: RotateGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git110220330440550SE +/- 2.96, N = 3SE +/- 0.67, N = 3505481516-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: 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

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: 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

dav1d

Video Input: Chimera 1080p

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Chimera 1080pGCC 9.2.0LLVM Clang 10 Git120240360480600SE +/- 0.79, N = 3SE +/- 2.02, N = 3546.36575.08MIN: 345.34 / MAX: 673.27MIN: 353.68 / MAX: 718.091. (CC) gcc options: -O3 -march=native -pthread

dav1d

Video Input: Summer Nature 4K

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 4KGCC 9.2.0LLVM Clang 10 Git60120180240300SE +/- 0.54, N = 3SE +/- 0.20, N = 3273.96279.11MIN: 129.55 / MAX: 296.84MIN: 127.8 / MAX: 303.171. (CC) gcc options: -O3 -march=native -pthread

dav1d

Video Input: Summer Nature 1080p

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 1080pGCC 9.2.0LLVM Clang 10 Git130260390520650SE +/- 1.75, N = 3SE +/- 1.70, N = 3588.19595.62MIN: 266.11 / MAX: 655.78MIN: 260.63 / MAX: 664.581. (CC) gcc options: -O3 -march=native -pthread

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

SVT-AV1

Encoder Mode: Enc Mode 0 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 0 - Input: 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git0.0160.0320.0480.0640.08SE +/- 0.000, N = 6SE +/- 0.000, N = 9SE +/- 0.000, N = 90.0650.0670.0711. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

SVT-AV1

Encoder Mode: Enc Mode 4 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 4 - Input: 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git3691215SE +/- 0.061, N = 3SE +/- 0.022, N = 3SE +/- 0.072, N = 39.8109.94210.4001. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

SVT-AV1

Encoder Mode: Enc Mode 8 - Input: 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.7Encoder Mode: Enc Mode 8 - Input: 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git20406080100SE +/- 0.31, N = 3SE +/- 0.03, N = 3SE +/- 0.17, N = 379.7381.1087.141. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

SVT-VP9

Tuning: VMAF Optimized - Input: Bosphorus 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: VMAF Optimized - Input: Bosphorus 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git80160240320400SE +/- 1.11, N = 3SE +/- 1.14, N = 3SE +/- 1.42, N = 3370.91372.91379.361. (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 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git80160240320400SE +/- 5.05, N = 3SE +/- 1.93, N = 3SE +/- 2.39, N = 3375.84377.46382.361. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

SVT-VP9

Tuning: Visual Quality Optimized - Input: Bosphorus 1080p

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: Visual Quality Optimized - Input: Bosphorus 1080pGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git70140210280350SE +/- 1.87, N = 3SE +/- 2.79, N = 3SE +/- 4.64, N = 3293.33288.98298.551. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

VP9 libvpx Encoding

vpxenc VP9 1080p Video Encode

OpenBenchmarking.orgFrames Per Second, More Is BetterVP9 libvpx Encoding 1.8.1vpxenc VP9 1080p Video EncodeGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git4080120160200SE +/- 0.16, N = 3SE +/- 0.59, N = 3SE +/- 0.22, N = 3155.85155.17160.441. (CXX) g++ options: -m64 -lm -lpthread -O3 -march=native -fPIC -U_FORTIFY_SOURCE -std=c++11

x264

H.264 Video Encoding

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2018-09-25H.264 Video EncodingGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git306090120150SE +/- 0.96, N = 3SE +/- 1.50, N = 3SE +/- 0.22, N = 3154.14152.23154.61-mstack-alignment=641. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -march=native -std=gnu99 -fPIC -fomit-frame-pointer -fno-tree-vectorize

x265

H.265 1080p Video Encoding

OpenBenchmarking.orgFrames Per Second, More Is Betterx265 3.1.2H.265 1080p Video EncodingGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git1122334455SE +/- 0.12, N = 3SE +/- 0.11, N = 3SE +/- 0.11, N = 348.7648.3648.921. (CXX) g++ options: -O3 -march=native -rdynamic -lpthread -lrt -ldl -lnuma

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

Coremark

CoreMark Size 666 - Iterations Per Second

OpenBenchmarking.orgIterations/Sec, More Is BetterCoremark 1.0CoreMark Size 666 - Iterations Per SecondGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git400K800K1200K1600K2000KSE +/- 1399.84, N = 3SE +/- 2856.66, N = 3SE +/- 6972.36, N = 31589318.731664749.691283555.691. (CC) gcc options: -O2 -O3 -march=native -lrt" -lrt

Himeno Benchmark

Poisson Pressure Solver

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git7001400210028003500SE +/- 66.64, N = 15SE +/- 4.44, N = 3SE +/- 45.52, N = 152487.762844.343483.861. (CC) gcc options: -O3 -march=native -mavx2

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

Timed LLVM Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 6.0.1Time To CompileGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git4080120160200145.50162.78131.33

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

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

AOBench

Size: 2048 x 2048 - Total Time

OpenBenchmarking.orgSeconds, Fewer Is BetterAOBenchSize: 2048 x 2048 - Total TimeGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git918273645SE +/- 0.01, N = 3SE +/- 0.12, N = 3SE +/- 0.04, N = 337.1835.9841.361. (CC) gcc options: -lm -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 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git510152025SE +/- 0.16, N = 3SE +/- 0.13, N = 3SE +/- 0.16, N = 322.3622.2022.411. (CC) gcc options: -pthread -fvisibility=hidden -O3 -march=native

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

FLAC Audio Encoding

WAV To FLAC

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.2WAV To FLACGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git3691215SE +/- 0.007, N = 5SE +/- 0.008, N = 5SE +/- 0.009, N = 510.65310.7689.498-fvisibility=hidden-fvisibility=hidden1. (CXX) g++ options: -O3 -march=native -logg -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

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

ASKAP

Test: tConvolve MT - Gridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve MT - GriddingGCC 9.2.0GCC 10.0.0 201911179001800270036004500SE +/- 4.79, N = 3SE +/- 2.82, N = 34387.844410.551. (CXX) g++ options: -lpthread

ASKAP

Test: tConvolve MT - Degridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve MT - DegriddingGCC 9.2.0GCC 10.0.0 2019111713002600390052006500SE +/- 3.14, N = 3SE +/- 1.85, N = 35892.255962.811. (CXX) g++ options: -lpthread

ASKAP

Test: tConvolve OpenMP - Gridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve OpenMP - GriddingGCC 9.2.0GCC 10.0.0 2019111715003000450060007500SE +/- 54.12, N = 3SE +/- 59.89, N = 36602.286946.851. (CXX) g++ options: -lpthread

ASKAP

Test: tConvolve OpenMP - Degridding

OpenBenchmarking.orgMillion Grid Points Per Second, More Is BetterASKAP 2018-11-10Test: tConvolve OpenMP - DegriddingGCC 9.2.0GCC 10.0.0 2019111714002800420056007000SE +/- 33.47, N = 3SE +/- 0.00, N = 35187.246656.401. (CXX) g++ options: -lpthread

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

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 OnlyGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git130K260K390K520K650KSE +/- 986.51, N = 3SE +/- 467.85, N = 3SE +/- 1073.83, N = 3589144.11593115.57596205.491. (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 WriteGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git10K20K30K40K50KSE +/- 43.17, N = 3SE +/- 19.13, N = 3SE +/- 21.66, N = 348273.1248304.4748421.311. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

CppPerformanceBenchmarks

Test: Atol

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: AtolGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git20406080100SE +/- 0.17, N = 3SE +/- 0.22, N = 3SE +/- 0.18, N = 375.9075.5576.201. (CXX) g++ options: -O3 -march=native -std=c++11

CppPerformanceBenchmarks

Test: Ctype

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: CtypeGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git1020304050SE +/- 0.04, N = 3SE +/- 0.77, N = 15SE +/- 0.01, N = 340.5542.1038.661. (CXX) g++ options: -O3 -march=native -std=c++11

CppPerformanceBenchmarks

Test: Math Library

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Math LibraryGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git80160240320400SE +/- 0.78, N = 3SE +/- 0.22, N = 3SE +/- 0.16, N = 3354.48346.36341.741. (CXX) g++ options: -O3 -march=native -std=c++11

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

CppPerformanceBenchmarks

Test: Stepanov Vector

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov VectorGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git20406080100SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 3102.22100.8288.541. (CXX) g++ options: -O3 -march=native -std=c++11

CppPerformanceBenchmarks

Test: Function Objects

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Function ObjectsGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git510152025SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 319.7018.3919.471. (CXX) g++ options: -O3 -march=native -std=c++11

CppPerformanceBenchmarks

Test: Stepanov Abstraction

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov AbstractionGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git918273645SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.39, N = 637.7537.5934.841. (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

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

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

Redis

Test: LPUSH

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: LPUSHGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git300K600K900K1200K1500KSE +/- 11571.16, N = 3SE +/- 18234.45, N = 15SE +/- 18364.34, N = 151287761.001387280.441372099.011. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

Redis

Test: GET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: GETGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git500K1000K1500K2000K2500KSE +/- 32908.04, N = 4SE +/- 38824.38, N = 15SE +/- 22857.27, N = 32216263.442029652.622158757.831. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

Redis

Test: SET

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 5.0.5Test: SETGCC 9.2.0GCC 10.0.0 20191117LLVM Clang 10 Git300K600K900K1200K1500KSE +/- 22520.49, N = 15SE +/- 24405.72, N = 12SE +/- 25369.83, N = 31465273.921494027.971494870.671. (CXX) g++ options: -MM -MT -g3 -fvisibility=hidden -O3 -march=native

Xsbench

OpenBenchmarking.orgLookups/s, More Is BetterXsbench 2017-07-06GCC 9.2.0GCC 10.0.0 201911171.4M2.8M4.2M5.6M7MSE +/- 3588.47, N = 3SE +/- 1920.71, N = 3645484564744831. (CC) gcc options: -std=gnu99 -fopenmp -O3 -lm

Phoronix Test Suite v10.8.5