GCC 9 Compiler Benchmarking vs. LLVM Clang

Intel Core i9-7980XE benchmarks of GCC 8 / GCC 9 versus LLVM Clang 7 and LLVM Clang 8 compilers on Ubuntu Linux. Benchmarks by Michael Larabel for a future article on Phoronix.com.

HTML result view exported from: https://openbenchmarking.org/result/1811133-SK-GCC9COMPI38&gru&sor&rro.

GCC 9 Compiler Benchmarking vs. LLVM ClangProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 20181111Intel Core i9-7980XE @ 4.20GHz (18 Cores / 36 Threads)ASUS PRIME X299-A (1503 BIOS)Intel Sky Lake-E DMI3 Registers16384MB240GB Force MP510NV120 12GBRealtek ALC1220ASUS PB278Intel ConnectionUbuntu 18.104.18.0-10-generic (x86_64)GNOME Shell 3.30.1X Server 1.20.1modesetting 1.20.14.3 Mesa 18.2.2GCC 8.2.0ext42560x1440GCC 9.0.0 20181112Clang 7.0.0-3Clang 8.0.0-svn346617-1~exp1+0~20181111195013.162~1.gbp8d271fOpenBenchmarking.orgEnvironment Details- CXXFLAGS=-O3-march=native CFLAGS=-O3-march=nativeCompiler Details- GCC 8.2.0, GCC 9.0.0 20181112: --disable-multilib --enable-checking=releaseProcessor Details- Scaling Governor: intel_pstate powersavePython Details- Python 2.7.15+ + Python 3.6.7Security Details- KPTI + __user pointer sanitization + Full generic retpoline IBPB IBRS_FW + SSB disabled via prctl and seccomp + PTE Inversion; VMX: conditional cache flushes SMT vulnerable

GCC 9 Compiler Benchmarking vs. LLVM Clangx264: H.264 Video Encodinghpcg: xsbench: tjbench: Decompression Throughputfftw: Float + SSE - 1D FFT Size 2048fftw: Float + SSE - 2D FFT Size 2048scimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationhimeno: Poisson Pressure Solvercompress-7zip: Compress Speed Testcrafty: Elapsed Timestockfish: Total Timemcperf: Getmcperf: Setjohn-the-ripper: Blowfishjohn-the-ripper: Traditional DESjohn-the-ripper: MD5ebizzy: openssl: RSA 4096-bit Performancenpb: BT.Anpb: EP.Cnpb: FT.Anpb: FT.Bnpb: SP.Apgbench: Buffer Test - Normal Load - Read Onlypgbench: Buffer Test - Normal Load - Read Writeblake2: parboil: OpenMP LBMparboil: OpenMP CUTCPparboil: OpenMP Stencilparboil: OpenMP MRI Griddingcloverleaf: Lagrangian-Eulerian Hydrodynamicshmmer: Pfam Database Searchbuild-apache: Time To Compilebuild-linux-kernel: Time To Compilebuild-llvm: Time To Compilec-ray: Total Time - 4K, 16 Rays Per Pixelaobench: 2048 x 2048 - Total Timecompress-zstd: Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19encode-mp3: WAV To MP3m-queens: Time To SolveGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 201811111281.2546623951835701920014261590672732956071207430899357685606414782781110873071776222547270766767043560731946584834925675672203542496730238303.6679.362.467.131462.9810.2622.0544.2622333.7031.3510.6110.1348.731281.22466480918459299204682613906732329560632069309393437842339746908339110495724492217374356333675993620245467345571250671871743865500154217763.5181.522.447.191473.2010.4222.2644.1822033.7531.3210.639.7448.721251.335156109204562742025825847177633300647616622463461797071158687306427611985375007992095949974547504725171863.028.5921.1321666.7632.3010.2712.1650.191251.3450221071985443319871257771776832886449166124554572508111524773009256141000830008189765882664544505631100123.108.5219.7018967.0632.1910.3411.8050.41OpenBenchmarking.org

x264

H.264 Video Encoding

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2018-09-25H.264 Video EncodingClang 7.0.0Clang 8.0.0 20181111GCC 8.2.0GCC 9.0.0 20181112306090120150SE +/- 2.08, N = 4SE +/- 1.11, N = 3SE +/- 1.97, N = 3SE +/- 1.58, N = 7125125128128-mstack-alignment=64-mstack-alignment=641. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -march=native -std=gnu99 -fPIC -fomit-frame-pointer -fno-tree-vectorize

High Performance Conjugate Gradient

OpenBenchmarking.orgGFLOP/s, More Is BetterHigh Performance Conjugate Gradient 3.0GCC 9.0.0 20181112GCC 8.2.0Clang 7.0.0Clang 8.0.0 201811110.30150.6030.90451.2061.5075SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 31.221.251.331.34

Xsbench

OpenBenchmarking.orgLookups/s, More Is BetterXsbench 2017-07-06GCC 8.2.0GCC 9.0.0 20181112Clang 8.0.0 20181111Clang 7.0.01.1M2.2M3.3M4.4M5.5MSE +/- 806.44, N = 3SE +/- 1108.05, N = 3SE +/- 1402.44, N = 3SE +/- 843.35, N = 346623954664809502210751561091. (CC) gcc options: -std=gnu99 -fopenmp -O3 -lm

libjpeg-turbo tjbench

Test: Decompression Throughput

OpenBenchmarking.orgMegapixels/sec, More Is Betterlibjpeg-turbo tjbench 1.5.3Test: Decompression ThroughputGCC 8.2.0GCC 9.0.0 20181112Clang 8.0.0 20181111Clang 7.0.04080120160200SE +/- 0.06, N = 3SE +/- 0.54, N = 3SE +/- 1.17, N = 3SE +/- 0.36, N = 31831841982041. (CC) gcc options: -O3 -march=native -lm

FFTW

Build: Float + SSE - Size: 1D FFT Size 2048

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 2048Clang 8.0.0 20181111Clang 7.0.0GCC 8.2.0GCC 9.0.0 2018111213K26K39K52K65KSE +/- 809.18, N = 5SE +/- 463.90, N = 3SE +/- 1025.80, N = 3SE +/- 196.81, N = 3544335627457019592991. (CC) gcc options: -pthread -O3 -march=native -lm

FFTW

Build: Float + SSE - Size: 2D FFT Size 2048

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 2048Clang 8.0.0 20181111GCC 8.2.0Clang 7.0.0GCC 9.0.0 201811124K8K12K16K20KSE +/- 95.21, N = 3SE +/- 25.39, N = 3SE +/- 260.52, N = 3SE +/- 88.29, N = 3198712001420258204681. (CC) gcc options: -pthread -O3 -march=native -lm

SciMark

Computational Test: Composite

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeClang 8.0.0 20181111Clang 7.0.0GCC 9.0.0 20181112GCC 8.2.06001200180024003000SE +/- 5.03, N = 3SE +/- 1.31, N = 3SE +/- 2.04, N = 3SE +/- 1.63, N = 325772584261326151. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Monte Carlo

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloClang 7.0.0Clang 8.0.0 20181111GCC 8.2.0GCC 9.0.0 201811122004006008001000SE +/- 0.32, N = 3SE +/- 0.29, N = 3SE +/- 1.15, N = 3SE +/- 0.99, N = 37177179069061. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Fast Fourier Transform

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 20181111170340510680850SE +/- 0.86, N = 3SE +/- 1.85, N = 3SE +/- 3.38, N = 3SE +/- 1.98, N = 37277327637681. (CC) gcc options: -O3 -march=native -lm

SciMark

Computational Test: Sparse Matrix Multiply

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyClang 8.0.0 20181111GCC 8.2.0GCC 9.0.0 20181112Clang 7.0.07001400210028003500SE +/- 5.51, N = 3SE +/- 1.55, N = 3SE +/- 3.31, N = 3SE +/- 3.75, N = 332883295329533001. (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 9.0.0 20181112GCC 8.2.0Clang 8.0.0 20181111Clang 7.0.014002800420056007000SE +/- 7.72, N = 3SE +/- 10.59, N = 3SE +/- 18.31, N = 3SE +/- 0.69, N = 360636071644964761. (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-RelaxationClang 8.0.0 20181111Clang 7.0.0GCC 9.0.0 20181112GCC 8.2.0400800120016002000SE +/- 1.35, N = 3SE +/- 1.35, N = 3SE +/- 3.14, N = 3SE +/- 2.18, N = 316611662206920741. (CC) gcc options: -O3 -march=native -lm

Himeno Benchmark

Poisson Pressure Solver

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverClang 8.0.0 20181111Clang 7.0.0GCC 8.2.0GCC 9.0.0 201811127001400210028003500SE +/- 4.58, N = 3SE +/- 2.40, N = 3SE +/- 4.75, N = 3SE +/- 3.44, N = 324552463308930931. (CC) gcc options: -O3 -march=native -mavx2

7-Zip Compression

Compress Speed Test

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 16.02Compress Speed TestGCC 9.0.0 20181112GCC 8.2.020K40K60K80K100KSE +/- 384.58, N = 3SE +/- 184.01, N = 393437935761. (CXX) g++ options: -pipe -lpthread

Crafty

Elapsed Time

OpenBenchmarking.orgNodes Per Second, More Is BetterCrafty 25.2Elapsed TimeGCC 9.0.0 20181112GCC 8.2.02M4M6M8M10MSE +/- 15686.24, N = 3SE +/- 8409.72, N = 3842339785606411. (CC) gcc options: -pthread -lstdc++ -fprofile-use -lm

Stockfish

Total Time

OpenBenchmarking.orgNodes Per Second, More Is BetterStockfish 9Total TimeClang 8.0.0 20181111Clang 7.0.0GCC 9.0.0 20181112GCC 8.2.010M20M30M40M50MSE +/- 77465.59, N = 3SE +/- 358695.82, N = 3SE +/- 469942.62, N = 3SE +/- 290155.29, N = 3457250814617970746908339478278111. (CXX) g++ options: -m64 -lpthread -O3 -march=native -fno-exceptions -std=c++11 -pedantic -msse -msse3 -mpopcnt -flto

Memcached mcperf

Method: Get

OpenBenchmarking.orgOperations Per Second, More Is BetterMemcached mcperf 1.5.10Method: GetGCC 8.2.0GCC 9.0.0 20181112Clang 8.0.0 20181111Clang 7.0.020K40K60K80K100KSE +/- 767.29, N = 3SE +/- 666.93, N = 3SE +/- 1208.65, N = 3SE +/- 605.02, N = 31087301104951152471158681. (CC) gcc options: -O3 -march=native -lm -rdynamic

Memcached mcperf

Method: Set

OpenBenchmarking.orgOperations Per Second, More Is BetterMemcached mcperf 1.5.10Method: SetGCC 8.2.0GCC 9.0.0 20181112Clang 8.0.0 20181111Clang 7.0.016K32K48K64K80KSE +/- 259.45, N = 3SE +/- 305.67, N = 3SE +/- 408.85, N = 3SE +/- 499.66, N = 3717767244973009730641. (CC) gcc options: -O3 -march=native -lm -rdynamic

John The Ripper

Test: Blowfish

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.8.0-jumbo-1Test: BlowfishGCC 9.0.0 20181112GCC 8.2.0Clang 8.0.0 20181111Clang 7.0.06K12K18K24K30KSE +/- 65.83, N = 3SE +/- 70.42, N = 3SE +/- 9.29, N = 3SE +/- 11.67, N = 3221732225425614276111. (CC) gcc options: -lssl -lcrypto -fopenmp -lgmp -pthread -lm -lz -ldl -lcrypt

John The Ripper

Test: Traditional DES

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.8.0-jumbo-1Test: Traditional DESGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 2018111120M40M60M80M100MSE +/- 1115841.74, N = 3SE +/- 132290.51, N = 3SE +/- 1095165.68, N = 12SE +/- 185734.58, N = 37270766774356333985375001000830001. (CC) gcc options: -lssl -lcrypto -fopenmp -lgmp -pthread -lm -lz -ldl -lcrypt

John The Ripper

Test: MD5

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.8.0-jumbo-1Test: MD5GCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 20181111200K400K600K800K1000KSE +/- 925.69, N = 3SE +/- 1299.84, N = 3SE +/- 11085.39, N = 3SE +/- 768.00, N = 36704356759937992098189761. (CC) gcc options: -lssl -lcrypto -fopenmp -lgmp -pthread -lm -lz -ldl -lcrypt

ebizzy

OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3Clang 8.0.0 20181111Clang 7.0.0GCC 8.2.0GCC 9.0.0 20181112130K260K390K520K650KSE +/- 10943.27, N = 3SE +/- 8494.47, N = 12SE +/- 5181.95, N = 3SE +/- 7775.77, N = 35882665949976073196202451. (CC) gcc options: -pthread -lpthread -O3 -march=native

OpenSSL

RSA 4096-bit Performance

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.1.1RSA 4096-bit PerformanceClang 8.0.0 20181111Clang 7.0.0GCC 8.2.0GCC 9.0.0 2018111210002000300040005000SE +/- 8.23, N = 3SE +/- 2.68, N = 3SE +/- 5.28, N = 3SE +/- 0.31, N = 34544454746584673-Qunused-arguments-Qunused-arguments1. (CC) gcc options: -pthread -m64 -O3 -march=native -lssl -lcrypto -ldl

NAS Parallel Benchmarks

Test / Class: BT.A

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: BT.AGCC 9.0.0 20181112GCC 8.2.010002000300040005000SE +/- 35.44, N = 3SE +/- 31.51, N = 3455748341. (F9X) gfortran options: -O3 -march=native -pthread -lmpi_usempif08 -lmpi_mpifh -lmpi

NAS Parallel Benchmarks

Test / Class: EP.C

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: EP.CGCC 8.2.0GCC 9.0.0 2018111230060090012001500SE +/- 4.53, N = 3SE +/- 12.17, N = 392512501. (F9X) gfortran options: -O3 -march=native -pthread -lmpi_usempif08 -lmpi_mpifh -lmpi

NAS Parallel Benchmarks

Test / Class: FT.A

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: FT.AGCC 9.0.0 20181112GCC 8.2.014002800420056007000SE +/- 17.12, N = 3SE +/- 12.06, N = 3671867561. (F9X) gfortran options: -O3 -march=native -pthread -lmpi_usempif08 -lmpi_mpifh -lmpi

NAS Parallel Benchmarks

Test / Class: FT.B

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: FT.BGCC 9.0.0 20181112GCC 8.2.015003000450060007500SE +/- 2.08, N = 3SE +/- 8.95, N = 3717472201. (F9X) gfortran options: -O3 -march=native -pthread -lmpi_usempif08 -lmpi_mpifh -lmpi

NAS Parallel Benchmarks

Test / Class: SP.A

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: SP.AGCC 8.2.0GCC 9.0.0 201811128001600240032004000SE +/- 45.01, N = 3SE +/- 28.57, N = 3354238651. (F9X) gfortran options: -O3 -march=native -pthread -lmpi_usempif08 -lmpi_mpifh -lmpi

PostgreSQL pgbench

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

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read OnlyGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 20181111110K220K330K440K550KSE +/- 210.08, N = 3SE +/- 274.70, N = 3SE +/- 3717.80, N = 3SE +/- 3943.25, N = 34967305001545047255056311. (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 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read WriteClang 8.0.0 20181111Clang 7.0.0GCC 9.0.0 20181112GCC 8.2.05K10K15K20K25KSE +/- 421.62, N = 12SE +/- 1724.11, N = 9SE +/- 1475.07, N = 9SE +/- 402.82, N = 4100121718621776238301. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

BLAKE2

OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20170307GCC 8.2.0GCC 9.0.0 20181112Clang 8.0.0 20181111Clang 7.0.00.82351.6472.47053.2944.1175SE +/- 0.09, N = 12SE +/- 0.11, N = 12SE +/- 0.01, N = 3SE +/- 0.06, N = 33.663.513.103.021. (CC) gcc options: -O3 -march=native -lcrypto -lz

Parboil

Test: OpenMP LBM

OpenBenchmarking.orgSeconds, Fewer Is BetterParboil 2.5Test: OpenMP LBMGCC 9.0.0 20181112GCC 8.2.020406080100SE +/- 0.27, N = 3SE +/- 0.33, N = 381.5279.361. (CXX) g++ options: -lm -lpthread -lgomp -O3 -ffast-math -fopenmp

Parboil

Test: OpenMP CUTCP

OpenBenchmarking.orgSeconds, Fewer Is BetterParboil 2.5Test: OpenMP CUTCPGCC 8.2.0GCC 9.0.0 201811120.55351.1071.66052.2142.7675SE +/- 0.04, N = 3SE +/- 0.02, N = 32.462.441. (CXX) g++ options: -lm -lpthread -lgomp -O3 -ffast-math -fopenmp

Parboil

Test: OpenMP Stencil

OpenBenchmarking.orgSeconds, Fewer Is BetterParboil 2.5Test: OpenMP StencilGCC 9.0.0 20181112GCC 8.2.0246810SE +/- 0.06, N = 3SE +/- 0.05, N = 37.197.131. (CXX) g++ options: -lm -lpthread -lgomp -O3 -ffast-math -fopenmp

Parboil

Test: OpenMP MRI Gridding

OpenBenchmarking.orgSeconds, Fewer Is BetterParboil 2.5Test: OpenMP MRI GriddingGCC 9.0.0 20181112GCC 8.2.0306090120150SE +/- 0.40, N = 3SE +/- 0.83, N = 31471461. (CXX) g++ options: -lm -lpthread -lgomp -O3 -ffast-math -fopenmp

CloverLeaf

Lagrangian-Eulerian Hydrodynamics

OpenBenchmarking.orgSeconds, Fewer Is BetterCloverLeafLagrangian-Eulerian HydrodynamicsGCC 9.0.0 20181112GCC 8.2.00.721.442.162.883.6SE +/- 0.01, N = 3SE +/- 0.03, N = 33.202.981. (F9X) gfortran options: -O3 -march=native -funroll-loops -fopenmp

Timed HMMer Search

Pfam Database Search

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchGCC 9.0.0 20181112GCC 8.2.0Clang 7.0.0Clang 8.0.0 201811113691215SE +/- 0.10, N = 3SE +/- 0.06, N = 3SE +/- 0.12, N = 3SE +/- 0.11, N = 310.4210.268.598.521. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

Timed Apache Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Apache Compilation 2.4.7Time To CompileGCC 9.0.0 20181112GCC 8.2.0Clang 7.0.0Clang 8.0.0 20181111510152025SE +/- 0.05, N = 3SE +/- 0.07, N = 3SE +/- 0.06, N = 3SE +/- 0.06, N = 322.2622.0521.1319.70

Timed Linux Kernel Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 4.18Time To CompileGCC 8.2.0GCC 9.0.0 201811121020304050SE +/- 0.50, N = 9SE +/- 0.61, N = 644.2644.18

Timed LLVM Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 6.0.1Time To CompileGCC 8.2.0GCC 9.0.0 20181112Clang 7.0.0Clang 8.0.0 2018111150100150200250223220216189

C-Ray

Total Time - 4K, 16 Rays Per Pixel

OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total Time - 4K, 16 Rays Per PixelClang 8.0.0 20181111Clang 7.0.0GCC 9.0.0 20181112GCC 8.2.01530456075SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 367.0666.7633.7533.701. (CC) gcc options: -lm -lpthread -O3 -march=native

AOBench

Size: 2048 x 2048 - Total Time

OpenBenchmarking.orgSeconds, Fewer Is BetterAOBenchSize: 2048 x 2048 - Total TimeClang 7.0.0Clang 8.0.0 20181111GCC 8.2.0GCC 9.0.0 20181112816243240SE +/- 0.07, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 332.3032.1931.3531.321. (CC) gcc options: -lm -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 9.0.0 20181112GCC 8.2.0Clang 8.0.0 20181111Clang 7.0.03691215SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.07, N = 3SE +/- 0.04, N = 310.6310.6110.3410.271. (CC) gcc options: -O3 -march=native -pthread -lz -llzma

LAME MP3 Encoding

WAV To MP3

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.100WAV To MP3Clang 7.0.0Clang 8.0.0 20181111GCC 8.2.0GCC 9.0.0 201811123691215SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.01, N = 312.1611.8010.139.74-pipe -lncurses-pipe -lncurses1. (CC) gcc options: -O3 -march=native -lm

m-queens

Time To Solve

OpenBenchmarking.orgSeconds, Fewer Is Betterm-queens 1.2Time To SolveClang 8.0.0 20181111Clang 7.0.0GCC 8.2.0GCC 9.0.0 201811121122334455SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 350.4150.1948.7348.721. (CXX) g++ options: -fopenmp -O3 -march=native -O2


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