GCC 8.0 vs. Clang 6.0 AMD EPYC Tuning Comparison

Tests for a future article on Phoronix.

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Audio Encoding 2 Tests
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GCC 8.0: x86-64
January 02 2018
 
GCC 8.0: znver1
January 02 2018
 
Clang 6.0: x86-64
January 02 2018
 
Clang 6.0: znver1
January 01 2018
 
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GCC 8.0: x86-64

Compiler Notes: --disable-multilib --enable-checking=release
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

GCC 8.0: znver1

Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 126976MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

OS: Ubuntu 17.10, Kernel: 4.13.0-21-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: modesetting 1.19.5, OpenCL: OpenCL 1.2 pocl 1.0 LLVM 5.0.0, Compiler: GCC 8.0.0 20171231 + clang (GCC) 8.0.0 20171231 (experimental) + LLVM 5.0.0, File-System: ext4, Screen Resolution: 1920x1080, System Layer: vm-other Xen 4.9.0 Hypervisor

Clang 6.0: x86-64

Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

Clang 6.0: znver1

OS: Ubuntu 17.10, Kernel: 4.13.0-21-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: modesetting 1.19.5, OpenCL: OpenCL 1.2 pocl 1.0 LLVM 5.0.0, Compiler: Clang 6.0.0 (SVN 321623) + LLVM 6.0.0svn, File-System: ext4, Screen Resolution: 1920x1080, System Layer: vm-other Xen 4.9.0 Hypervisor

GCC 8.0 vs. Clang 6.0 AMD EPYC Tuning ComparisonOpenBenchmarking.orgPhoronix Test SuiteAMD EPYC 7601 32-Core @ 2.20GHz (64 Cores)TYAN B8026T70AE24HRAMD Device 1450126976MB280GB INTEL SSDPE21D280GAASPEED ASPEED FamilyVE228Broadcom Limited NetXtreme BCM5720 Gigabit PCIeUbuntu 17.104.13.0-21-generic (x86_64)GNOME Shell 3.26.1modesetting 1.19.5OpenCL 1.2 pocl 1.0 LLVM 5.0.0GCC 8.0.0 20171231 + clang (GCC) 8.0.0 20171231 (experimental) + LLVM 5.0.0Clang 6.0.0 (SVN 321623) + LLVM 6.0.0svnext41920x1080vm-other Xen 4.9.0 HypervisorProcessorMotherboardChipsetMemoryDiskGraphicsMonitorNetworkOSKernelDesktopDisplay DriverOpenCLCompilersFile-SystemScreen ResolutionSystem LayerGCC 8.0 Vs. Clang 6.0 AMD EPYC Tuning Comparison BenchmarksSystem Logs- GCC 8.0: x86-64: --disable-multilib --enable-checking=release- GCC 8.0: znver1: --disable-multilib --enable-checking=release- Clang 6.0: x86-64: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1- Clang 6.0: znver1: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1- NONE / data=ordered,errors=remount-ro,relatime,rw

sqlite: Default Test Directorypolybench-c: 3 Matrix Multiplicationsfftw: Stock - 2D FFT Size 4096fftw: Float + SSE - 2D FFT Size 4096hmmer: Pfam Database Searchscimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationtscp: AI Chess Performancegraphics-magick: Blurgraphics-magick: Sharpengraphics-magick: HWB Color Spacegraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solverebizzy: c-ray: Total Timebullet: Raytestsbullet: 3000 Fallbullet: 1000 Stackbullet: 1000 Convexbullet: 136 Ragdollsbullet: Prim Trimeshbullet: Convex Trimeshencode-flac: WAV To FLACencode-mp3: WAV To MP3apache: Static Web Page ServingGCC 8.0Clang 6.0 x86-64 znver1 x86-64 znver17.6160.684959.7313.651579.48561.03233.892263.873513.111423.1487425111615717792949.1911260323.933.125.346.185.443.261.101.347.1211.109841.307.1665.455627.831363012.401680.45555.76231.092259.953678.861676.6287508512316518695935.6411011763.373.065.275.935.283.191.101.307.4510.819791.237.5362.984660.831364912.851479.53531.38179.292190.103190.431110.65917658101131150971032.7110766484.533.225.486.305.433.281.101.337.9411.339531.437.4862.755031.601248111.091699.32552.19226.682258.644034.891424.21918269104136155981052.4711454054.483.185.346.085.313.231.091.326.6312.819663.93OpenBenchmarking.org

SQLite

This is a simple benchmark of SQLite. At present this test profile just measures the time to perform a pre-defined number of insertions on an indexed database. Learn more via the OpenBenchmarking.org test page.

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.8.10.2Test Target: Default Test DirectoryGCC 8.0Clang 6.0246810SE +/- 0.12, N = 3SE +/- 0.06, N = 3SE +/- 0.12, N = 6SE +/- 0.15, N = 67.617.537.167.481. (CC) gcc options: -O3 -march=znver1 -ldl -lpthread
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.8.10.2Test Target: Default Test DirectoryGCC 8.0Clang 6.03691215Min: 7.39 / Avg: 7.61 / Max: 7.82Min: 7.43 / Avg: 7.53 / Max: 7.62Min: 6.81 / Avg: 7.16 / Max: 7.54Min: 6.83 / Avg: 7.48 / Max: 7.911. (CC) gcc options: -O3 -march=znver1 -ldl -lpthread

PolyBench-C

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterPolyBench-C 3.2Test: 3 Matrix MultiplicationsGCC 8.0Clang 6.01530456075SE +/- 0.03, N = 3SE +/- 0.24, N = 3SE +/- 0.21, N = 3SE +/- 0.26, N = 360.6862.9865.4562.751. (CC) gcc options: -O3 -march=znver1 -march=native
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterPolyBench-C 3.2Test: 3 Matrix MultiplicationsGCC 8.0Clang 6.01326395265Min: 60.63 / Avg: 60.68 / Max: 60.71Min: 62.65 / Avg: 62.98 / Max: 63.43Min: 65.09 / Avg: 65.45 / Max: 65.82Min: 62.25 / Avg: 62.75 / Max: 63.11. (CC) gcc options: -O3 -march=znver1 -march=native

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.

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 4096GCC 8.0Clang 6.012002400360048006000SE +/- 1.16, N = 3SE +/- 57.25, N = 3SE +/- 10.37, N = 3SE +/- 17.93, N = 34959.734660.835627.835031.601. (CC) gcc options: -pthread -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 4096GCC 8.0Clang 6.010002000300040005000Min: 4958.2 / Avg: 4959.73 / Max: 4962Min: 4557.2 / Avg: 4660.83 / Max: 4754.8Min: 5607.1 / Avg: 5627.83 / Max: 5638.9Min: 4998.7 / Avg: 5031.6 / Max: 5060.41. (CC) gcc options: -pthread -O3 -march=znver1 -lm

znver1x86-64OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 4096GCC 8.0Clang 6.03K6K9K12K15KSE +/- 15.38, N = 3SE +/- 76.70, N = 3SE +/- 100.95, N = 31363012481136491. (CC) gcc options: -pthread -O3 -march=znver1 -lm
znver1x86-64OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 4096GCC 8.0Clang 6.02K4K6K8K10KMin: 13613 / Avg: 13630.33 / Max: 13661Min: 12328 / Avg: 12481.33 / Max: 12562Min: 13452 / Avg: 13649.33 / Max: 137851. (CC) gcc options: -pthread -O3 -march=znver1 -lm

Timed HMMer Search

This test searches through the Pfam database of profile hidden markov models. The search finds the domain structure of Drosophila Sevenless protein. Learn more via the OpenBenchmarking.org test page.

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 8.0Clang 6.048121620SE +/- 1.74, N = 6SE +/- 1.28, N = 6SE +/- 0.04, N = 3SE +/- 0.12, N = 313.6512.8512.4011.091. (CC) gcc options: -O3 -march=znver1 -pthread -lhmmer -lsquid -lm
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 8.0Clang 6.048121620Min: 11.5 / Avg: 13.65 / Max: 22.3Min: 10.76 / Avg: 12.85 / Max: 18.89Min: 12.33 / Avg: 12.4 / Max: 12.46Min: 10.86 / Avg: 11.09 / Max: 11.241. (CC) gcc options: -O3 -march=znver1 -pthread -lhmmer -lsquid -lm

SciMark

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeGCC 8.0Clang 6.0400800120016002000SE +/- 20.51, N = 7SE +/- 36.18, N = 8SE +/- 20.36, N = 4SE +/- 25.95, N = 41579.481479.531680.451699.321. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeGCC 8.0Clang 6.030060090012001500Min: 1543.3 / Avg: 1579.48 / Max: 1698.31Min: 1227.3 / Avg: 1479.53 / Max: 1532.16Min: 1654 / Avg: 1680.45 / Max: 1741.04Min: 1649.52 / Avg: 1699.32 / Max: 1771.911. (CC) gcc options: -O3 -march=znver1 -lm

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 8.0Clang 6.0120240360480600SE +/- 0.04, N = 4SE +/- 0.05, N = 4SE +/- 0.01, N = 4SE +/- 0.05, N = 4561.03531.38555.76552.191. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 8.0Clang 6.0100200300400500Min: 560.92 / Avg: 561.03 / Max: 561.11Min: 531.29 / Avg: 531.38 / Max: 531.51Min: 555.72 / Avg: 555.76 / Max: 555.78Min: 552.11 / Avg: 552.19 / Max: 552.341. (CC) gcc options: -O3 -march=znver1 -lm

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 8.0Clang 6.050100150200250SE +/- 0.35, N = 4SE +/- 45.12, N = 4SE +/- 0.14, N = 4SE +/- 0.38, N = 4233.89179.29231.09226.681. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 8.0Clang 6.04080120160200Min: 232.95 / Avg: 233.89 / Max: 234.66Min: 43.96 / Avg: 179.29 / Max: 225.91Min: 230.7 / Avg: 231.09 / Max: 231.31Min: 225.81 / Avg: 226.68 / Max: 227.481. (CC) gcc options: -O3 -march=znver1 -lm

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 8.0Clang 6.05001000150020002500SE +/- 6.72, N = 4SE +/- 11.89, N = 4SE +/- 9.55, N = 4SE +/- 29.07, N = 42263.872190.102259.952258.641. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 8.0Clang 6.0400800120016002000Min: 2245.01 / Avg: 2263.87 / Max: 2276.89Min: 2167.45 / Avg: 2190.1 / Max: 2210.89Min: 2231.69 / Avg: 2259.95 / Max: 2273.02Min: 2215.38 / Avg: 2258.64 / Max: 2342.391. (CC) gcc options: -O3 -march=znver1 -lm

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 8.0Clang 6.09001800270036004500SE +/- 177.13, N = 4SE +/- 17.92, N = 4SE +/- 110.38, N = 4SE +/- 135.63, N = 43513.113190.433678.864034.891. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 8.0Clang 6.07001400210028003500Min: 3230.18 / Avg: 3513.11 / Max: 4029.36Min: 3157.28 / Avg: 3190.43 / Max: 3238.87Min: 3541.42 / Avg: 3678.86 / Max: 4008.15Min: 3830.23 / Avg: 4034.89 / Max: 4434.171. (CC) gcc options: -O3 -march=znver1 -lm

x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 8.0Clang 6.0400800120016002000SE +/- 0.28, N = 4SE +/- 310.16, N = 4SE +/- 0.77, N = 4SE +/- 0.49, N = 41423.141110.651676.621424.211. (CC) gcc options: -O3 -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 8.0Clang 6.030060090012001500Min: 1422.7 / Avg: 1423.14 / Max: 1423.93Min: 180.17 / Avg: 1110.65 / Max: 1421.01Min: 1674.58 / Avg: 1676.62 / Max: 1678.3Min: 1423.53 / Avg: 1424.21 / Max: 1425.641. (CC) gcc options: -O3 -march=znver1 -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.

x86-64znver1OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 8.0Clang 6.0200K400K600K800K1000KSE +/- 438.77, N = 5SE +/- 572.37, N = 5SE +/- 556.88, N = 5SE +/- 306.40, N = 58742519176588750859182691. (CC) gcc options: -O3 -march=znver1 -march=native
x86-64znver1OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 8.0Clang 6.0160K320K480K640K800KMin: 872865 / Avg: 874251 / Max: 875640Min: 916435 / Avg: 917658.2 / Max: 919495Min: 874250 / Avg: 875085 / Max: 877035Min: 917963 / Avg: 918269.4 / Max: 9194951. (CC) gcc options: -O3 -march=znver1 -march=native

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.

x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC 8.0Clang 6.0306090120150SE +/- 0.33, N = 3SE +/- 0.33, N = 31161011231041. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread
x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: BlurGCC 8.0Clang 6.020406080100Min: 116 / Avg: 116.33 / Max: 117Min: 100 / Avg: 100.67 / Max: 1011. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: SharpenGCC 8.0Clang 6.04080120160200SE +/- 0.33, N = 3SE +/- 0.67, N = 31571311651361. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread
x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: SharpenGCC 8.0Clang 6.0306090120150Min: 164 / Avg: 164.67 / Max: 165Min: 135 / Avg: 136.33 / Max: 1371. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC 8.0Clang 6.04080120160200SE +/- 1.20, N = 3SE +/- 0.88, N = 31771501861551. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread
x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: HWB Color SpaceGCC 8.0Clang 6.0306090120150Min: 148 / Avg: 150.33 / Max: 152Min: 154 / Avg: 155.33 / Max: 1571. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC 8.0Clang 6.020406080100SE +/- 0.33, N = 3SE +/- 0.33, N = 3929795981. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread
x86-64znver1OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingGCC 8.0Clang 6.020406080100Min: 96 / Avg: 96.67 / Max: 97Min: 95 / Avg: 95.33 / Max: 961. (CC) gcc options: -fopenmp -O3 -march=znver1 -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lbz2 -lz -lm -lpthread

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.

x86-64znver1OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC 8.0Clang 6.02004006008001000SE +/- 0.43, N = 3SE +/- 1.46, N = 3SE +/- 0.79, N = 3SE +/- 1.50, N = 3949.191032.71935.641052.471. (CC) gcc options: -O3 -march=znver1 -mavx2
x86-64znver1OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverGCC 8.0Clang 6.02004006008001000Min: 948.34 / Avg: 949.19 / Max: 949.73Min: 1030.49 / Avg: 1032.71 / Max: 1035.46Min: 934.2 / Avg: 935.64 / Max: 936.92Min: 1049.72 / Avg: 1052.47 / Max: 1054.911. (CC) gcc options: -O3 -march=znver1 -mavx2

ebizzy

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

x86-64znver1OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3GCC 8.0Clang 6.0200K400K600K800K1000KSE +/- 20747.16, N = 6SE +/- 12350.97, N = 3SE +/- 19461.21, N = 3SE +/- 17141.58, N = 611260321076648110117611454051. (CC) gcc options: -pthread -lpthread -O3 -march=znver1 -march=native
x86-64znver1OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3GCC 8.0Clang 6.0200K400K600K800K1000KMin: 1058908 / Avg: 1126032 / Max: 1204792Min: 1059446 / Avg: 1076648.33 / Max: 1100602Min: 1080859 / Avg: 1101176.33 / Max: 1140086Min: 1087607 / Avg: 1145404.67 / Max: 11844041. (CC) gcc options: -pthread -lpthread -O3 -march=znver1 -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.

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC 8.0Clang 6.01.01932.03863.05794.07725.0965SE +/- 0.00, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 33.934.533.374.481. (CC) gcc options: -lm -lpthread -O3 -march=znver1
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC 8.0Clang 6.0246810Min: 3.93 / Avg: 3.93 / Max: 3.94Min: 4.5 / Avg: 4.53 / Max: 4.56Min: 3.34 / Avg: 3.37 / Max: 3.41Min: 4.47 / Avg: 4.48 / Max: 4.511. (CC) gcc options: -lm -lpthread -O3 -march=znver1

Bullet Physics Engine

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

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: RaytestsGCC 8.0Clang 6.00.72451.4492.17352.8983.6225SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 33.123.223.063.181. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: RaytestsGCC 8.0Clang 6.0246810Min: 3.12 / Avg: 3.12 / Max: 3.12Min: 3.22 / Avg: 3.22 / Max: 3.22Min: 3.05 / Avg: 3.06 / Max: 3.07Min: 3.17 / Avg: 3.18 / Max: 3.181. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 FallGCC 8.0Clang 6.01.2332.4663.6994.9326.165SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 35.345.485.275.341. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 FallGCC 8.0Clang 6.0246810Min: 5.33 / Avg: 5.34 / Max: 5.36Min: 5.47 / Avg: 5.48 / Max: 5.49Min: 5.25 / Avg: 5.27 / Max: 5.28Min: 5.33 / Avg: 5.34 / Max: 5.351. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 StackGCC 8.0Clang 6.0246810SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 36.186.305.936.081. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 StackGCC 8.0Clang 6.03691215Min: 6.16 / Avg: 6.18 / Max: 6.21Min: 6.27 / Avg: 6.3 / Max: 6.35Min: 5.9 / Avg: 5.93 / Max: 5.95Min: 6.07 / Avg: 6.08 / Max: 6.11. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 ConvexGCC 8.0Clang 6.01.2242.4483.6724.8966.12SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 35.445.435.285.311. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 ConvexGCC 8.0Clang 6.0246810Min: 5.44 / Avg: 5.44 / Max: 5.44Min: 5.42 / Avg: 5.43 / Max: 5.46Min: 5.27 / Avg: 5.28 / Max: 5.3Min: 5.3 / Avg: 5.31 / Max: 5.321. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 136 RagdollsGCC 8.0Clang 6.00.7381.4762.2142.9523.69SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 33.263.283.193.231. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 136 RagdollsGCC 8.0Clang 6.0246810Min: 3.25 / Avg: 3.26 / Max: 3.27Min: 3.27 / Avg: 3.28 / Max: 3.28Min: 3.18 / Avg: 3.19 / Max: 3.21Min: 3.22 / Avg: 3.23 / Max: 3.231. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Prim TrimeshGCC 8.0Clang 6.00.24750.4950.74250.991.2375SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.101.101.101.091. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Prim TrimeshGCC 8.0Clang 6.0246810Min: 1.1 / Avg: 1.1 / Max: 1.1Min: 1.1 / Avg: 1.1 / Max: 1.1Min: 1.1 / Avg: 1.1 / Max: 1.11Min: 1.09 / Avg: 1.09 / Max: 1.11. (CXX) g++ options: -O3 -march=znver1 -rdynamic

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Convex TrimeshGCC 8.0Clang 6.00.30150.6030.90451.2061.5075SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.341.331.301.321. (CXX) g++ options: -O3 -march=znver1 -rdynamic
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Convex TrimeshGCC 8.0Clang 6.0246810Min: 1.33 / Avg: 1.34 / Max: 1.34Min: 1.33 / Avg: 1.33 / Max: 1.33Min: 1.3 / Avg: 1.3 / Max: 1.31Min: 1.31 / Avg: 1.32 / Max: 1.321. (CXX) g++ options: -O3 -march=znver1 -rdynamic

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.

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLACGCC 8.0Clang 6.0246810SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 5SE +/- 0.00, N = 57.127.947.456.631. (CXX) g++ options: -O3 -march=znver1 -logg -lm
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLACGCC 8.0Clang 6.03691215Min: 7.1 / Avg: 7.12 / Max: 7.15Min: 7.92 / Avg: 7.94 / Max: 7.96Min: 7.42 / Avg: 7.45 / Max: 7.5Min: 6.62 / Avg: 6.63 / Max: 6.641. (CXX) g++ options: -O3 -march=znver1 -logg -lm

LAME MP3 Encoding

x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.5WAV To MP3GCC 8.0Clang 6.03691215SE +/- 0.02, N = 5SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.01, N = 511.1011.3310.8112.811. (CC) gcc options: -O3 -ffast-math -funroll-loops -fschedule-insns2 -fbranch-count-reg -fforce-addr -pipe -march=znver1 -lm
x86-64znver1OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.5WAV To MP3GCC 8.0Clang 6.048121620Min: 11.08 / Avg: 11.1 / Max: 11.17Min: 11.32 / Avg: 11.33 / Max: 11.34Min: 10.79 / Avg: 10.81 / Max: 10.86Min: 12.8 / Avg: 12.81 / Max: 12.831. (CC) gcc options: -O3 -ffast-math -funroll-loops -fschedule-insns2 -fbranch-count-reg -fforce-addr -pipe -march=znver1 -lm

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.

x86-64znver1OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page ServingGCC 8.0Clang 6.02K4K6K8K10KSE +/- 22.88, N = 3SE +/- 161.49, N = 3SE +/- 35.54, N = 3SE +/- 121.20, N = 39841.309531.439791.239663.931. (CC) gcc options: -shared -fPIC -pthread -O3 -march=znver1
x86-64znver1OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page ServingGCC 8.0Clang 6.02K4K6K8K10KMin: 9807.36 / Avg: 9841.3 / Max: 9884.86Min: 9281.4 / Avg: 9531.43 / Max: 9833.5Min: 9729 / Avg: 9791.23 / Max: 9852.1Min: 9421.81 / Avg: 9663.93 / Max: 9794.951. (CC) gcc options: -shared -fPIC -pthread -O3 -march=znver1

GCC 8.0: x86-64

Compiler Notes: --disable-multilib --enable-checking=release
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

Testing initiated at 2 January 2018 10:40 by user phoronix.

GCC 8.0: znver1

Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 126976MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

OS: Ubuntu 17.10, Kernel: 4.13.0-21-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: modesetting 1.19.5, OpenCL: OpenCL 1.2 pocl 1.0 LLVM 5.0.0, Compiler: GCC 8.0.0 20171231 + clang (GCC) 8.0.0 20171231 (experimental) + LLVM 5.0.0, File-System: ext4, Screen Resolution: 1920x1080, System Layer: vm-other Xen 4.9.0 Hypervisor

Compiler Notes: --disable-multilib --enable-checking=release
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

Testing initiated at 2 January 2018 08:53 by user phoronix.

Clang 6.0: x86-64

Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

Testing initiated at 2 January 2018 05:54 by user phoronix.

Clang 6.0: znver1

Processor: AMD EPYC 7601 32-Core @ 2.20GHz (64 Cores), Motherboard: TYAN B8026T70AE24HR, Chipset: AMD Device 1450, Memory: 126976MB, Disk: 280GB INTEL SSDPE21D280GA, Graphics: ASPEED ASPEED Family, Monitor: VE228, Network: Broadcom Limited NetXtreme BCM5720 Gigabit PCIe

OS: Ubuntu 17.10, Kernel: 4.13.0-21-generic (x86_64), Desktop: GNOME Shell 3.26.1, Display Driver: modesetting 1.19.5, OpenCL: OpenCL 1.2 pocl 1.0 LLVM 5.0.0, Compiler: Clang 6.0.0 (SVN 321623) + LLVM 6.0.0svn, File-System: ext4, Screen Resolution: 1920x1080, System Layer: vm-other Xen 4.9.0 Hypervisor

Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: znver1
Disk Notes: NONE / data=ordered,errors=remount-ro,relatime,rw

Testing initiated at 1 January 2018 13:05 by user phoronix.