AMD EPYC Rome GCC / LLVM / AOCC Compiler Benchmarks

AMD AOCC 2.0, GCC, LLVM Clang compiler benchmarks on EPYC 7742. Tests by Michael Larabel for a future article.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1908094-AS-AOCC20EPY01
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GCC 9.1.0
August 07 2019
  2 Hours, 39 Minutes
GCC 10.0 Git
August 07 2019
  2 Hours, 41 Minutes
LLVM Clang 9.0 SVN
August 08 2019
  3 Hours, 31 Minutes
AOCC 2.0
August 08 2019
  4 Hours, 6 Minutes
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  3 Hours, 14 Minutes

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GCC 9.1.0

Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1001C BIOS), Chipset: AMD Device 1480, Memory: 516096MB, Disk: 280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFD, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: GCC 9.1.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Compiler Notes: --disable-multilib --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

GCC 10.0 Git

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: GCC 10.0.0 20190804, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 9.0 SVN

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: Clang 9.0.0-svn364739-1~exp1+0~20190701101552.184~1.gbp124358, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

AOCC 2.0

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: Clang 8.0.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Compiler Notes: Optimized build with assertions; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

AMD EPYC Rome GCC / LLVM / AOCC Compiler BenchmarksOpenBenchmarking.orgPhoronix Test Suite2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads)AMD DAYTONA_X (RDY1001C BIOS)AMD Device 1480516096MB280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFDASPEEDVE2282 x Mellanox MT27710Ubuntu 19.045.2.0-050200rc7-generic (x86_64) 20190630GNOME Shell 3.32.1X Server 1.20.4modesetting 1.20.4GCC 9.1.0GCC 10.0.0 20190804Clang 9.0.0-svn364739-1~exp1+0~20190701101552.184~1.gbp124358Clang 8.0.0ext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverCompilersFile-SystemScreen ResolutionAMD EPYC Rome GCC / LLVM / AOCC Compiler Benchmarks PerformanceSystem Logs- CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2- GCC 9.1.0: --disable-multilib --enable-checking=release- GCC 10.0 Git: --disable-multilib --enable-checking=release- AOCC 2.0: Optimized build with assertions; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1- Scaling Governor: acpi-cpufreq ondemand- Python 2.7.16 + Python 3.7.3- l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

GCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.0Result OverviewPhoronix Test Suite100%115%130%146%C-RayCoremarkJohn The RipperAOBenchGraphicsMagickFFTWTSCPSciMarkHigh Performance Conjugate GradientCppPerformanceBenchmarksApache Benchmarkx264dav1dx265libjpeg-turbo tjbench

AMD EPYC Rome GCC / LLVM / AOCC Compiler Benchmarkssvt-av1: 1080p 8-bit YUV To AV1 Video Encodesvt-hevc: 1080p 8-bit YUV To HEVC Video Encodesvt-vp9: 1080p 8-bit YUV To VP9 Video Encodex264: H.264 Video Encodingx265: H.265 1080p Video Encodinghpcg: graphics-magick: Rotategraphics-magick: Resizingcoremark: CoreMark Size 666 - Iterations Per Secondtjbench: Decompression Throughputfftw: Stock - 2D FFT Size 2048fftw: Stock - 2D FFT Size 4096scimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationtscp: AI Chess Performancejohn-the-ripper: Blowfishapache: Static Web Page Servingc-ray: Total Time - 4K, 16 Rays Per Pixelaobench: 2048 x 2048 - Total Timedav1d: Summer Nature 4Kdav1d: Summer Nature 1080pcpp-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 AbstractionGCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.0101.07343.29277.45153.3144.540.362041023868113.71175.167381.006327.202834.06612.17203.682741.978811.171801.31107281214830224915.195.7236.7711.524.7574.3641.66343.451599.0799.2118.9336.66100.44344.04283.63152.4344.730.362021023825301.45175.487288.806289.302828.01610.98202.712763.508762.751800.11104077514854224096.605.8235.3311.164.7774.3239.33333.851627.9997.7019.0136.52102.78337.75274.55153.9545.370.352371193024508.81174.136627.775842.732880.56621.05224.523382.938518.521655.77114937018765224594.669.1941.7511.564.8674.1036.74331.021892.4685.8918.8233.44157.1845.570.332051203284059.92175.966462.335593.442730.13605.88178.572736.948473.111656.18109368218714024163.319.0137.0211.144.7774.3837.81330.411894.0289.7318.9434.10OpenBenchmarking.org

SVT-AV1

This is a test of the Intel Open Visual Cloud Scalable Video Technology SVT-AV1 CPU-based multi-threaded video encoder for the AV1 video format with a sample 1080p YUV video file. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-AV1 0.51080p 8-bit YUV To AV1 Video EncodeLLVM Clang 9.0 SVNGCC 9.1.0GCC 10.0 Git20406080100SE +/- 0.32, N = 3SE +/- 1.25, N = 5SE +/- 0.16, N = 3102.78101.07100.441. (CXX) g++ options: -O3 -march=znver2 -pie -lpthread -lm

SVT-HEVC

This is a test of the Intel Open Visual Cloud Scalable Video Technology SVT-HEVC CPU-based multi-threaded video encoder for the HEVC / H.265 video format with a sample 1080p YUV video file. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-HEVC 2019-02-031080p 8-bit YUV To HEVC Video EncodeGCC 10.0 GitGCC 9.1.0LLVM Clang 9.0 SVN70140210280350SE +/- 3.15, N = 10SE +/- 4.37, N = 3SE +/- 4.13, N = 3344.04343.29337.75-fPIE -fPIC -O2 -flto -fvisibility=hidden -march=native-fPIE -fPIC -O2 -flto -fvisibility=hidden -march=native1. (CC) gcc options: -O3 -march=znver2 -pie -rdynamic -lpthread -lrt

SVT-VP9

This is a test of the Intel Open Visual Cloud Scalable Video Technology SVT-VP9 CPU-based multi-threaded video encoder for the VP9 video format with a sample 1080p YUV video file. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 2019-02-171080p 8-bit YUV To VP9 Video EncodeGCC 10.0 GitGCC 9.1.0LLVM Clang 9.0 SVN60120180240300SE +/- 3.30, N = 15SE +/- 4.48, N = 3SE +/- 3.16, N = 3283.63277.45274.55-fPIE -fPIC -O2 -flto -fvisibility=hidden -mavx-fPIE -fPIC -O2 -flto -fvisibility=hidden -mavx1. (CC) gcc options: -O3 -march=znver2 -pie -rdynamic -lpthread -lrt -lm

x264

This is a simple test of the x264 encoder run on the CPU (OpenCL support disabled) with a sample video file. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2018-09-25H.264 Video EncodingAOCC 2.0LLVM Clang 9.0 SVNGCC 9.1.0GCC 10.0 Git306090120150SE +/- 2.65, N = 3SE +/- 0.48, N = 3SE +/- 0.91, N = 3SE +/- 0.41, N = 3157.18153.95153.31152.43-mstack-alignment=64-mstack-alignment=641. (CC) gcc options: -ldl -lavformat -lavcodec -lavutil -lswscale -m64 -lm -lpthread -O3 -ffast-math -march=znver2 -std=gnu99 -fPIC -fomit-frame-pointer -fno-tree-vectorize

x265

This is a simple test of the x265 encoder run on the CPU with a sample 1080p video file. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is Betterx265 3.0H.265 1080p Video EncodingAOCC 2.0LLVM Clang 9.0 SVNGCC 10.0 GitGCC 9.1.01020304050SE +/- 0.15, N = 3SE +/- 0.15, N = 3SE +/- 0.21, N = 3SE +/- 0.11, N = 345.5745.3744.7344.541. (CXX) g++ options: -O3 -march=znver2 -rdynamic -lpthread -lrt -ldl -lnuma

High Performance Conjugate Gradient

HPCG is the High Performance Conjugate Gradient and is a new scientific benchmark from Sandia National Lans focused for super-computer testing with modern real-world workloads compared to HPCC. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgGFLOP/s, More Is BetterHigh Performance Conjugate Gradient 3.0GCC 10.0 GitGCC 9.1.0LLVM Clang 9.0 SVNAOCC 2.00.0810.1620.2430.3240.405SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 12SE +/- 0.01, N = 120.360.360.350.33

GraphicsMagick

This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.30Operation: RotateLLVM Clang 9.0 SVNAOCC 2.0GCC 9.1.0GCC 10.0 Git50100150200250SE +/- 1.15, N = 3237205204202-lomp-lomp-ldl-ldl1. (CC) gcc options: -fopenmp -O3 -march=znver2 -pthread -ljbig -lwebp -lwebpmux -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.30Operation: ResizingAOCC 2.0LLVM Clang 9.0 SVNGCC 10.0 GitGCC 9.1.0306090120150SE +/- 2.59, N = 12SE +/- 1.53, N = 3SE +/- 0.58, N = 3120119102102-lomp-lomp-ldl-ldl1. (CC) gcc options: -fopenmp -O3 -march=znver2 -pthread -ljbig -lwebp -lwebpmux -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

Coremark

This is a test of EEMBC CoreMark processor benchmark. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgIterations/Sec, More Is BetterCoremark 1.0CoreMark Size 666 - Iterations Per SecondGCC 9.1.0GCC 10.0 GitAOCC 2.0LLVM Clang 9.0 SVN800K1600K2400K3200K4000KSE +/- 60538.32, N = 3SE +/- 29615.82, N = 3SE +/- 40813.96, N = 3SE +/- 32092.57, N = 33868113.713825301.453284059.923024508.811. (CC) gcc options: -O2 -O3 -march=znver2 -lrt" -lrt

libjpeg-turbo tjbench

tjbench is a JPEG decompression/compression benchmark part of libjpeg-turbo. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMegapixels/sec, More Is Betterlibjpeg-turbo tjbench 2.0.2Test: Decompression ThroughputAOCC 2.0GCC 10.0 GitGCC 9.1.0LLVM Clang 9.0 SVN4080120160200SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.02, N = 3SE +/- 0.16, N = 3175.96175.48175.16174.131. (CC) gcc options: -O3 -march=znver2 -rdynamic

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 3.3.6Build: Stock - Size: 2D FFT Size 2048GCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.016003200480064008000SE +/- 15.60, N = 3SE +/- 74.47, N = 3SE +/- 50.06, N = 3SE +/- 19.37, N = 37381.007288.806627.776462.331. (CC) gcc options: -pthread -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 4096GCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.014002800420056007000SE +/- 32.75, N = 3SE +/- 67.18, N = 3SE +/- 41.90, N = 3SE +/- 48.86, N = 126327.206289.305842.735593.441. (CC) gcc options: -pthread -O3 -march=znver2 -lm

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: CompositeLLVM Clang 9.0 SVNGCC 9.1.0GCC 10.0 GitAOCC 2.06001200180024003000SE +/- 9.28, N = 3SE +/- 10.94, N = 3SE +/- 4.68, N = 3SE +/- 4.27, N = 32880.562834.062828.012730.131. (CC) gcc options: -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLLVM Clang 9.0 SVNGCC 9.1.0GCC 10.0 GitAOCC 2.0130260390520650SE +/- 0.10, N = 3SE +/- 0.53, N = 3SE +/- 0.05, N = 3SE +/- 0.12, N = 3621.05612.17610.98605.881. (CC) gcc options: -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 9.0 SVNGCC 9.1.0GCC 10.0 GitAOCC 2.050100150200250SE +/- 0.10, N = 3SE +/- 0.91, N = 3SE +/- 0.44, N = 3SE +/- 0.38, N = 3224.52203.68202.71178.571. (CC) gcc options: -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 9.0 SVNGCC 10.0 GitGCC 9.1.0AOCC 2.07001400210028003500SE +/- 47.14, N = 3SE +/- 15.27, N = 3SE +/- 69.70, N = 3SE +/- 14.78, N = 33382.932763.502741.972736.941. (CC) gcc options: -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.02K4K6K8K10KSE +/- 15.96, N = 3SE +/- 28.43, N = 3SE +/- 6.82, N = 3SE +/- 10.49, N = 38811.178762.758518.528473.111. (CC) gcc options: -O3 -march=znver2 -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 9.1.0GCC 10.0 GitAOCC 2.0LLVM Clang 9.0 SVN400800120016002000SE +/- 0.11, N = 3SE +/- 0.14, N = 3SE +/- 0.43, N = 3SE +/- 0.16, N = 31801.311800.111656.181655.771. (CC) gcc options: -O3 -march=znver2 -lm

TSCP

This is a performance test of TSCP, Tom Kerrigan's Simple Chess Program, which has a built-in performance benchmark. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceLLVM Clang 9.0 SVNAOCC 2.0GCC 9.1.0GCC 10.0 Git200K400K600K800K1000KSE +/- 479.00, N = 5SE +/- 532.27, N = 5SE +/- 1412.87, N = 5SE +/- 393.00, N = 511493701093682107281210407751. (CC) gcc options: -O3 -march=znver2 -march=native

John The Ripper

This is a benchmark of John The Ripper, which is a password cracker. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.9.0-jumbo-1Test: BlowfishLLVM Clang 9.0 SVNAOCC 2.0GCC 10.0 GitGCC 9.1.040K80K120K160K200KSE +/- 2145.04, N = 3SE +/- 858.63, N = 3SE +/- 760.59, N = 3SE +/- 794.73, N = 31876521871401485421483021. (CC) gcc options: -m64 -lssl -lcrypto -fopenmp -lgmp -pthread -lm -lz -ldl -lcrypt -lbz2

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 2.4.29Static Web Page ServingGCC 9.1.0LLVM Clang 9.0 SVNAOCC 2.0GCC 10.0 Git5K10K15K20K25KSE +/- 435.79, N = 15SE +/- 400.39, N = 15SE +/- 395.53, N = 15SE +/- 497.81, N = 1524915.1924594.6624163.3124096.601. (CC) gcc options: -shared -fPIC -pthread -O3 -march=znver2

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 Time - 4K, 16 Rays Per PixelGCC 9.1.0GCC 10.0 GitAOCC 2.0LLVM Clang 9.0 SVN3691215SE +/- 0.09, N = 3SE +/- 0.09, N = 3SE +/- 0.13, N = 3SE +/- 0.04, N = 35.725.829.019.191. (CC) gcc options: -lm -lpthread -O3 -march=znver2

AOBench

AOBench is a lightweight ambient occlusion renderer, written in C. The test profile is using a size of 2048 x 2048. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterAOBenchSize: 2048 x 2048 - Total TimeGCC 10.0 GitGCC 9.1.0AOCC 2.0LLVM Clang 9.0 SVN1020304050SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.01, N = 335.3336.7737.0241.751. (CC) gcc options: -lm -O3 -march=znver2

dav1d

Dav1d is an open-source, speedy AV1 video decoder. This test profile times how long it takes to decode some sample AV1 video content. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is Betterdav1d 0.3Video Input: Summer Nature 4KAOCC 2.0GCC 10.0 GitGCC 9.1.0LLVM Clang 9.0 SVN3691215SE +/- 0.07, N = 3SE +/- 0.04, N = 3SE +/- 0.15, N = 3SE +/- 0.19, N = 311.1411.1611.5211.561. (CC) gcc options: -O3 -march=znver2 -pthread

OpenBenchmarking.orgSeconds, Fewer Is Betterdav1d 0.3Video Input: Summer Nature 1080pGCC 9.1.0GCC 10.0 GitAOCC 2.0LLVM Clang 9.0 SVN1.09352.1873.28054.3745.4675SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.00, N = 34.754.774.774.861. (CC) gcc options: -O3 -march=znver2 -pthread

CppPerformanceBenchmarks

CppPerformanceBenchmarks is a set of C++ compiler performance benchmarks. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: AtolLLVM Clang 9.0 SVNGCC 10.0 GitGCC 9.1.0AOCC 2.020406080100SE +/- 0.06, N = 3SE +/- 0.12, N = 3SE +/- 0.23, N = 3SE +/- 0.28, N = 374.1074.3274.3674.381. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: CtypeLLVM Clang 9.0 SVNAOCC 2.0GCC 10.0 GitGCC 9.1.01020304050SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.12, N = 336.7437.8139.3341.661. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Math LibraryAOCC 2.0LLVM Clang 9.0 SVNGCC 10.0 GitGCC 9.1.070140210280350SE +/- 0.31, N = 3SE +/- 0.43, N = 3SE +/- 0.12, N = 3SE +/- 0.46, N = 3330.41331.02333.85343.451. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Random NumbersGCC 9.1.0GCC 10.0 GitLLVM Clang 9.0 SVNAOCC 2.0400800120016002000SE +/- 0.06, N = 3SE +/- 0.12, N = 3SE +/- 0.02, N = 3SE +/- 0.26, N = 31599.071627.991892.461894.021. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov VectorLLVM Clang 9.0 SVNAOCC 2.0GCC 10.0 GitGCC 9.1.020406080100SE +/- 0.11, N = 3SE +/- 0.35, N = 3SE +/- 0.05, N = 3SE +/- 0.02, N = 385.8989.7397.7099.211. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Function ObjectsLLVM Clang 9.0 SVNGCC 9.1.0AOCC 2.0GCC 10.0 Git510152025SE +/- 0.08, N = 3SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.08, N = 318.8218.9318.9419.011. (CXX) g++ options: -O3 -march=znver2 -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Stepanov AbstractionLLVM Clang 9.0 SVNAOCC 2.0GCC 10.0 GitGCC 9.1.0816243240SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 333.4434.1036.5236.661. (CXX) g++ options: -O3 -march=znver2 -std=c++11

GCC 9.1.0

Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1001C BIOS), Chipset: AMD Device 1480, Memory: 516096MB, Disk: 280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFD, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: GCC 9.1.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Compiler Notes: --disable-multilib --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

Testing initiated at 7 August 2019 09:14 by user phoronix.

GCC 10.0 Git

Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1001C BIOS), Chipset: AMD Device 1480, Memory: 516096MB, Disk: 280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFD, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: GCC 10.0.0 20190804, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Compiler Notes: --disable-multilib --enable-checking=release
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

Testing initiated at 7 August 2019 18:15 by user phoronix.

LLVM Clang 9.0 SVN

Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1001C BIOS), Chipset: AMD Device 1480, Memory: 516096MB, Disk: 280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFD, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: Clang 9.0.0-svn364739-1~exp1+0~20190701101552.184~1.gbp124358, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

Testing initiated at 8 August 2019 05:38 by user phoronix.

AOCC 2.0

Processor: 2 x AMD EPYC 7742 64-Core @ 2.25GHz (128 Cores / 256 Threads), Motherboard: AMD DAYTONA_X (RDY1001C BIOS), Chipset: AMD Device 1480, Memory: 516096MB, Disk: 280GB INTEL SSDPED1D280GA + 6 x 3841GB Micron_9300_MTFDHAL3T8TDP + 256GB Micron_1100_MTFD, Graphics: ASPEED, Monitor: VE228, Network: 2 x Mellanox MT27710

OS: Ubuntu 19.04, Kernel: 5.2.0-050200rc7-generic (x86_64) 20190630, Desktop: GNOME Shell 3.32.1, Display Server: X Server 1.20.4, Display Driver: modesetting 1.20.4, Compiler: Clang 8.0.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS=-O3-march=znver2 CFLAGS=-O3-march=znver2
Compiler Notes: Optimized build with assertions; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Python Notes: Python 2.7.16 + Python 3.7.3
Security Notes: l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

Testing initiated at 8 August 2019 14:11 by user phoronix.