2019 Intel LLVM Clang Compiler Comparison

Tests for a future article by Michael Larabel.

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  Test
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LLVM Clang 6.0.1
December 19 2019
  3 Hours, 2 Minutes
LLVM Clang 7.1.0
December 18 2019
  3 Hours, 3 Minutes
LLVM Clang 8.0.1
December 18 2019
  3 Hours, 5 Minutes
LLVM Clang 9.0.1
December 18 2019
  3 Hours, 2 Minutes
LLVM Clang 10 20191217
December 17 2019
  3 Hours, 17 Minutes
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LLVM Clang 6.0.1

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 6.0.1 + LLVM 6.0.1, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

LLVM Clang 7.1.0

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 7.1.0 + LLVM 7.1.0, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 8.0.1

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 8.0.1 + LLVM 8.0.1, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 9.0.1

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 9.0.1 + LLVM 9.0.1, File-System: ext4, Screen Resolution: 1920x1080

LLVM Clang 10 20191217

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 10.0.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Python Notes: Python 2.7.17rc1 + Python 3.7.5
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

2019 Intel LLVM Clang Compiler ComparisonOpenBenchmarking.orgPhoronix Test SuiteIntel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads)ASRock X99 Extreme3 (P3.70 BIOS)Intel Xeon E7 v3/Xeon16384MB120GB INTEL SSDSC2BW12AMD FirePro V7900 2GBRealtek ALC1150VA2431Intel I218-VUbuntu 19.105.3.0-24-generic (x86_64)GNOME Shell 3.34.1X Server 1.20.5modesetting 1.20.5Clang 6.0.1 + LLVM 6.0.1Clang 7.1.0 + LLVM 7.1.0Clang 8.0.1 + LLVM 8.0.1Clang 9.0.1 + LLVM 9.0.1Clang 10.0.0ext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverCompilersFile-SystemScreen Resolution2019 Intel LLVM Clang Compiler Comparison BenchmarksSystem Logs- CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"- Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell- Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43- itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected - LLVM Clang 10 20191217: Python 2.7.17rc1 + Python 3.7.5

LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217Result OverviewPhoronix Test Suite100%107%114%121%Timed PHP CompilationApache BenchmarkGraphicsMagickHimeno BenchmarkCoremarkC-RayCppPerformanceBenchmarksZstd CompressionebizzyTSCPlibjpeg-turbo tjbenchx264SVT-HEVCXZ Compressionx265asmFishNGINX BenchmarkJohn The RipperTimed HMMer SearchAOBenchVP9 libvpx EncodingPostgreSQL pgbenchMinionSVT-AV1libgav1Tungsten Rendererdav1dTimed MrBayes AnalysisSciMarkSVT-VP9

2019 Intel LLVM Clang Compiler Comparisonmrbayes: Primate Phylogeny Analysishmmer: Pfam Database Searchlibgav1: Chimera 1080plibgav1: Summer Nature 4Klibgav1: Summer Nature 1080pscimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationtscp: AI Chess Performancejohn-the-ripper: Blowfishjohn-the-ripper: MD5graphics-magick: Swirlgraphics-magick: Rotategraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: Noise-Gaussiangraphics-magick: HWB Color Spacedav1d: Chimera 1080pdav1d: Summer Nature 4Kdav1d: Summer Nature 1080psvt-av1: Enc Mode 8 - 1080psvt-hevc: 1080p 8-bit YUV To HEVC Video Encodesvt-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 Encodingcoremark: CoreMark Size 666 - Iterations Per Secondhimeno: Poisson Pressure Solverasmfish: 1024 Hash Memory, 26 Depthebizzy: build-php: Time To Compilec-ray: Total Time - 4K, 16 Rays Per Pixeltungsten: Hairtungsten: Water Caustictungsten: Non-Exponentialtungsten: Volumetric Causticaobench: 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 19minion: Gracefulminion: Solitaireminion: Quasigrouptjbench: Decompression Throughputpgbench: Buffer Test - Normal Load - Read Onlycpp-perf-bench: Ctypecpp-perf-bench: Math Librarycpp-perf-bench: Function Objectsnginx: Static Web Page Servingapache: Static Web Page ServingLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217109.2527.30736.3215.8351.302100.40557.24453.812739.175239.86130516113377642135577127920109352.92105.51300.9723.28335.06102.84110.6181.14110.2456.2634.45222703.3846942915.1642292177316928428299.443133.53935.284231.15099.9702412.311041.54932.17020.93864.30626086.677773140.385022172.995715147464.45407535.312407.30016.13425228.4419278.25108.7597.18136.2115.7250.942103.77557.10459.852771.845218.38131262813437648735578127921109354.12107.13303.9323.20835.11102.26110.1780.23110.7856.9534.59228736.3430323098.96807722113202278134110.278127.17835.248531.46549.9317512.198742.20032.11120.95364.36664086.975667141.394096169.256304147812.12678835.698406.43216.13925579.0019824.96108.6167.30236.2515.7650.882100.14557.09455.342754.425222.18129594812937662336578128022111353.14106.57305.1523.41935.48101.77110.0981.50111.7157.6034.52222924.2030373085.75164721716998285846112.170127.08635.634631.13599.9548012.235041.60432.19121.33963.47223186.960693139.842752167.204583148726.69965431.093406.92715.99825503.6920224.78109.0307.31136.2315.7451.182114.81555.78455.312807.845243.49135127212937662735584128122112354.96106.53304.7323.45135.88102.90109.5680.82111.0557.3735.10215756.7215273148.07210522125493278849115.967125.18034.966031.010510.0068512.243342.10931.59520.82963.04010387.056188141.484902166.392078149135.20794834.939408.07616.13525695.3220345.02108.4487.20136.3815.8951.732114.14555.76455.492828.625219.62134533112937738438591128022141351.63106.56305.0823.39535.90102.66110.2581.14110.9857.8434.52212568.2385323145.24452021917065272998127.013127.24634.900031.16679.8303212.165641.79932.12820.36463.62364986.850014144.574132168.245614148890.92378632.959408.08215.93925528.1418326.27OpenBenchmarking.org

Timed MrBayes Analysis

This test performs a bayesian analysis of a set of primate genome sequences in order to estimate their phylogeny. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MrBayes Analysis 3.2.7Primate Phylogeny AnalysisLLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 10 2019121720406080100SE +/- 0.22, N = 3SE +/- 0.20, N = 3SE +/- 0.13, N = 3SE +/- 0.34, N = 3SE +/- 0.26, N = 3109.25109.03108.76108.62108.451. (CC) gcc options: -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -maes -mavx -mfma -mavx2 -mrdrnd -mbmi -mbmi2 -O3 -std=c99 -pedantic -march=native -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.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0246810SE +/- 0.088, N = 3SE +/- 0.085, N = 3SE +/- 0.109, N = 3SE +/- 0.073, N = 3SE +/- 0.055, N = 37.3117.3077.3027.2017.1811. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

libgav1

Libgav1 is an AV1 decoder developed by Google for AV1 profile 0/1 compliance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Chimera 1080pLLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 10 20191217816243240SE +/- 0.00, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 336.2136.2336.2536.3236.381. (CXX) g++ options: -O3 -march=native -lpthread

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Summer Nature 4KLLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 10 2019121748121620SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 315.7215.7415.7615.8315.891. (CXX) g++ options: -O3 -march=native -lpthread

OpenBenchmarking.orgFPS, More Is Betterlibgav1 2019-10-05Video Input: Summer Nature 1080pLLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 10 201912171224364860SE +/- 0.08, N = 3SE +/- 0.04, N = 3SE +/- 0.09, N = 3SE +/- 0.08, N = 3SE +/- 0.07, N = 350.8850.9451.1851.3051.731. (CXX) g++ options: -O3 -march=native -lpthread

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 8.0.1LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 9.0.15001000150020002500SE +/- 4.23, N = 3SE +/- 2.85, N = 3SE +/- 0.44, N = 3SE +/- 1.97, N = 3SE +/- 2.35, N = 32100.142100.402103.772114.142114.811. (CC) gcc options: -O3 -march=native -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 6.0.1120240360480600SE +/- 0.06, N = 3SE +/- 0.07, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3555.76555.78557.09557.10557.241. (CC) gcc options: -O3 -march=native -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0100200300400500SE +/- 0.35, N = 3SE +/- 1.74, N = 3SE +/- 0.86, N = 3SE +/- 0.64, N = 3SE +/- 1.14, N = 3453.81455.31455.34455.49459.851. (CC) gcc options: -O3 -march=native -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 10 201912176001200180024003000SE +/- 6.59, N = 3SE +/- 1.60, N = 3SE +/- 3.36, N = 3SE +/- 6.04, N = 3SE +/- 9.09, N = 32739.172754.422771.842807.842828.621. (CC) gcc options: -O3 -march=native -lm

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationLLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 9.0.111002200330044005500SE +/- 2.17, N = 3SE +/- 1.21, N = 3SE +/- 19.54, N = 3SE +/- 11.11, N = 3SE +/- 14.87, N = 35218.385219.625222.185239.865243.491. (CC) gcc options: -O3 -march=native -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 8.0.1LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 9.0.1300K600K900K1200K1500KSE +/- 766.45, N = 5SE +/- 804.66, N = 5SE +/- 812.25, N = 5129594813051611312628134533113512721. (CC) gcc options: -O3 -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 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217LLVM Clang 6.0.1LLVM Clang 7.1.030060090012001500SE +/- 0.33, N = 3129312931293133713431. (CC) gcc options: -m64 -lssl -lcrypto -lgmp -pthread -lm -lz -ldl -lcrypt -lbz2 -mavx2 -O3 -march=native -std=gnu89 -Qunused-arguments -funroll-loops

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.9.0-jumbo-1Test: MD5LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 2019121717K34K51K68K85KSE +/- 103.04, N = 3SE +/- 160.39, N = 3SE +/- 54.41, N = 3SE +/- 48.51, N = 3SE +/- 92.51, N = 376421764877662376627773841. (CC) gcc options: -m64 -lssl -lcrypto -lgmp -pthread -lm -lz -ldl -lcrypt -lbz2 -mavx2 -O3 -march=native -std=gnu89 -Qunused-arguments -funroll-loops

GraphicsMagick

This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests on a sample 6000x4000 pixel JPEG image. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: SwirlLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217918273645SE +/- 0.33, N = 335353536381. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: RotateLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 201912171302603905206505775785785845911. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: SharpenLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217369121512121212121. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: ResizingLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 9.0.120406080100SE +/- 0.67, N = 3SE +/- 0.33, N = 379798080811. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: Noise-GaussianLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 2019121751015202520212222221. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.33Operation: HWB Color SpaceLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217306090120150SE +/- 0.33, N = 3SE +/- 1.53, N = 31091091111121411. (CC) gcc options: -O3 -march=native -pthread -lfreetype -ljpeg -lXext -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lm -lpthread

dav1d

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

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Chimera 1080pLLVM Clang 10 20191217LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 9.0.180160240320400SE +/- 2.55, N = 3SE +/- 0.90, N = 3SE +/- 2.43, N = 3SE +/- 0.33, N = 3SE +/- 1.80, N = 3351.63352.92353.14354.12354.96MIN: 267.95 / MAX: 448.44MIN: 269.39 / MAX: 445.7MIN: 267.42 / MAX: 450.26MIN: 269.23 / MAX: 447.72MIN: 268.16 / MAX: 453.671. (CC) gcc options: -O3 -march=native -pthread

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 4KLLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217LLVM Clang 8.0.1LLVM Clang 7.1.020406080100SE +/- 0.51, N = 3SE +/- 0.10, N = 3SE +/- 0.14, N = 3SE +/- 0.21, N = 3SE +/- 0.18, N = 3105.51106.53106.56106.57107.13MIN: 93.72 / MAX: 114.77MIN: 96.43 / MAX: 114.96MIN: 95.24 / MAX: 114.76MIN: 94.07 / MAX: 115.12MIN: 92.6 / MAX: 115.371. (CC) gcc options: -O3 -march=native -pthread

OpenBenchmarking.orgFPS, More Is Betterdav1d 0.5.0Video Input: Summer Nature 1080pLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 10 20191217LLVM Clang 8.0.170140210280350SE +/- 0.69, N = 3SE +/- 0.72, N = 3SE +/- 0.59, N = 3SE +/- 0.34, N = 3SE +/- 0.62, N = 3300.97303.93304.73305.08305.15MIN: 225.55 / MAX: 327.76MIN: 252.19 / MAX: 331.33MIN: 251.66 / MAX: 332.09MIN: 263.43 / MAX: 331.34MIN: 252.78 / MAX: 332.071. (CC) gcc options: -O3 -march=native -pthread

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 0.7Encoder Mode: Enc Mode 8 - Input: 1080pLLVM Clang 7.1.0LLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 8.0.1LLVM Clang 9.0.1612182430SE +/- 0.05, N = 3SE +/- 0.08, N = 3SE +/- 0.02, N = 3SE +/- 0.08, N = 3SE +/- 0.09, N = 323.2123.2823.4023.4223.451. (CXX) g++ options: -O3 -march=native -fPIE -fPIC -pie

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 1.4.11080p 8-bit YUV To HEVC Video EncodeLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217816243240SE +/- 0.16, N = 3SE +/- 0.18, N = 3SE +/- 0.15, N = 3SE +/- 0.18, N = 3SE +/- 0.20, N = 335.0635.1135.4835.8835.901. (CC) gcc options: -O3 -march=native -fPIE -fPIC -O2 -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 0.1Tuning: VMAF Optimized - Input: Bosphorus 1080pLLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 6.0.1LLVM Clang 9.0.120406080100SE +/- 1.23, N = 6SE +/- 1.03, N = 8SE +/- 0.99, N = 9SE +/- 1.11, N = 7SE +/- 0.97, N = 10101.77102.26102.66102.84102.901. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: PSNR/SSIM Optimized - Input: Bosphorus 1080pLLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 6.0.120406080100SE +/- 0.65, N = 3SE +/- 0.72, N = 3SE +/- 1.08, N = 3SE +/- 0.72, N = 3SE +/- 0.82, N = 3109.56110.09110.17110.25110.611. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

OpenBenchmarking.orgFrames Per Second, More Is BetterSVT-VP9 0.1Tuning: Visual Quality Optimized - Input: Bosphorus 1080pLLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 8.0.120406080100SE +/- 0.16, N = 3SE +/- 0.32, N = 3SE +/- 0.11, N = 3SE +/- 0.26, N = 3SE +/- 0.33, N = 380.2380.8281.1481.1481.501. (CC) gcc options: -O3 -march=native -fPIE -fPIC -fvisibility=hidden -pie -rdynamic -lpthread -lrt -lm

VP9 libvpx Encoding

This is a standard video encoding performance test of Google's libvpx library and the vpxenc command for the VP9/WebM format using a sample 1080p video. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is BetterVP9 libvpx Encoding 1.8.1vpxenc VP9 1080p Video EncodeLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 8.0.1306090120150SE +/- 2.97, N = 11SE +/- 2.98, N = 11SE +/- 2.99, N = 11SE +/- 2.99, N = 11SE +/- 2.81, N = 12110.24110.78110.98111.05111.711. (CXX) g++ options: -m64 -lm -lpthread -O3 -march=native -fPIC -U_FORTIFY_SOURCE -std=c++11

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 EncodingLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 10 201912171326395265SE +/- 0.97, N = 3SE +/- 0.64, N = 6SE +/- 0.81, N = 3SE +/- 0.53, N = 10SE +/- 0.70, N = 556.2656.9557.3757.6057.841. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -march=native -std=gnu99 -mstack-alignment=64 -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 3.1.2H.265 1080p Video EncodingLLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 9.0.1816243240SE +/- 0.14, N = 3SE +/- 0.10, N = 3SE +/- 0.12, N = 3SE +/- 0.30, N = 3SE +/- 0.33, N = 334.4534.5234.5234.5935.101. (CXX) g++ options: -O3 -march=native -rdynamic -lpthread -lrt -ldl -lnuma

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 SecondLLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.050K100K150K200K250KSE +/- 126.38, N = 3SE +/- 238.33, N = 3SE +/- 38.36, N = 3SE +/- 142.79, N = 3SE +/- 418.39, N = 3212568.24215756.72222703.38222924.20228736.341. (CC) gcc options: -O2 -O3 -march=native -lrt" -lrt

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.

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 9.0.17001400210028003500SE +/- 3.05, N = 3SE +/- 4.88, N = 3SE +/- 3.21, N = 3SE +/- 1.63, N = 3SE +/- 2.82, N = 32915.163085.753098.973145.243148.071. (CC) gcc options: -O3 -march=native -mavx2

asmFish

This is a test of asmFish, an advanced chess benchmark written in Assembly. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgNodes/second, More Is BetterasmFish 2017-09-191024 Hash Memory, 26 DepthLLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 9.0.15M10M15M20M25MSE +/- 149705.12, N = 3SE +/- 134705.52, N = 3SE +/- 244509.85, N = 3SE +/- 104295.84, N = 3SE +/- 140093.10, N = 32171699821773169219170652211320222125493

ebizzy

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

OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.160K120K180K240K300KSE +/- 2688.53, N = 9SE +/- 2600.36, N = 10SE +/- 3251.33, N = 3SE +/- 3713.82, N = 5SE +/- 3400.35, N = 62729982781342788492842822858461. (CC) gcc options: -pthread -lpthread -O3 -march=native

Timed PHP Compilation

This test times how long it takes to build PHP 5 with the Zend engine. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 7.1.9Time To CompileLLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 6.0.1306090120150SE +/- 0.17, N = 3SE +/- 0.08, N = 3SE +/- 0.23, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3127.01115.97112.17110.2899.441. (CC) gcc options: -O3 -march=native -pedantic -ldl -lz -lm

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 PixelLLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.1306090120150SE +/- 0.06, N = 3SE +/- 0.07, N = 3SE +/- 0.02, N = 3SE +/- 0.08, N = 3SE +/- 0.01, N = 3133.54127.25127.18127.09125.181. (CC) gcc options: -lm -lpthread -O3 -march=native

Tungsten Renderer

Tungsten is a C++ physically based renderer that makes use of Intel's Embree ray tracing library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTungsten Renderer 0.2.2Scene: HairLLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 10 20191217816243240SE +/- 0.02, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 335.6335.2835.2534.9734.901. (CXX) g++ options: -O3 -march=native -std=c++0x -march=haswell -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mfma -mbmi2 -mno-sse4a -mno-avx -mno-avx2 -mno-xop -mno-fma4 -mno-avx512f -mno-avx512vl -mno-avx512pf -mno-avx512er -mno-avx512cd -mno-avx512dq -mno-avx512bw -mno-avx512ifma -mno-avx512vbmi -rdynamic -ljpeg -lpthread -ldl

OpenBenchmarking.orgSeconds, Fewer Is BetterTungsten Renderer 0.2.2Scene: Water CausticLLVM Clang 7.1.0LLVM Clang 10 20191217LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 9.0.1714212835SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.08, N = 3SE +/- 0.04, N = 331.4731.1731.1531.1431.011. (CXX) g++ options: -O3 -march=native -std=c++0x -march=haswell -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mfma -mbmi2 -mno-sse4a -mno-avx -mno-avx2 -mno-xop -mno-fma4 -mno-avx512f -mno-avx512vl -mno-avx512pf -mno-avx512er -mno-avx512cd -mno-avx512dq -mno-avx512bw -mno-avx512ifma -mno-avx512vbmi -rdynamic -ljpeg -lpthread -ldl

OpenBenchmarking.orgSeconds, Fewer Is BetterTungsten Renderer 0.2.2Scene: Non-ExponentialLLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 10 201912173691215SE +/- 0.03959, N = 3SE +/- 0.04142, N = 3SE +/- 0.00807, N = 3SE +/- 0.01192, N = 3SE +/- 0.03792, N = 310.006859.970249.954809.931759.830321. (CXX) g++ options: -O3 -march=native -std=c++0x -march=haswell -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mfma -mbmi2 -mno-sse4a -mno-avx -mno-avx2 -mno-xop -mno-fma4 -mno-avx512f -mno-avx512vl -mno-avx512pf -mno-avx512er -mno-avx512cd -mno-avx512dq -mno-avx512bw -mno-avx512ifma -mno-avx512vbmi -rdynamic -ljpeg -lpthread -ldl

OpenBenchmarking.orgSeconds, Fewer Is BetterTungsten Renderer 0.2.2Scene: Volumetric CausticLLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 10 201912173691215SE +/- 0.06, N = 3SE +/- 0.06, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.06, N = 312.3112.2412.2412.2012.171. (CXX) g++ options: -O3 -march=native -std=c++0x -march=haswell -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mfma -mbmi2 -mno-sse4a -mno-avx -mno-avx2 -mno-xop -mno-fma4 -mno-avx512f -mno-avx512vl -mno-avx512pf -mno-avx512er -mno-avx512cd -mno-avx512dq -mno-avx512bw -mno-avx512ifma -mno-avx512vbmi -rdynamic -ljpeg -lpthread -ldl

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 TimeLLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 10 20191217LLVM Clang 8.0.1LLVM Clang 6.0.11020304050SE +/- 0.57, N = 3SE +/- 0.50, N = 6SE +/- 0.30, N = 3SE +/- 0.08, N = 3SE +/- 0.06, N = 342.2042.1141.8041.6041.551. (CC) gcc options: -lm -O3 -march=native

XZ Compression

This test measures the time needed to compress a sample file (an Ubuntu file-system image) using XZ compression. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterXZ Compression 5.2.4Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9LLVM Clang 8.0.1LLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 9.0.1714212835SE +/- 0.06, N = 3SE +/- 0.06, N = 3SE +/- 0.10, N = 3SE +/- 0.06, N = 3SE +/- 0.14, N = 332.1932.1732.1332.1131.601. (CC) gcc options: -pthread -fvisibility=hidden -O3 -march=native

Zstd Compression

This test measures the time needed to compress a sample file (an Ubuntu file-system image) using Zstd compression. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterZstd Compression 1.3.4Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19LLVM Clang 8.0.1LLVM Clang 7.1.0LLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217510152025SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.07, N = 3SE +/- 0.10, N = 3SE +/- 0.16, N = 321.3420.9520.9420.8320.361. (CC) gcc options: -O3 -march=native -pthread -lz

Minion

Minion is an open-source constraint solver that is designed to be very scalable. This test profile uses Minion's integrated benchmarking problems to solve. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 1.8Benchmark: GracefulLLVM Clang 7.1.0LLVM Clang 6.0.1LLVM Clang 10 20191217LLVM Clang 8.0.1LLVM Clang 9.0.11428425670SE +/- 0.04, N = 3SE +/- 0.09, N = 3SE +/- 0.14, N = 3SE +/- 0.05, N = 3SE +/- 0.02, N = 364.3764.3163.6263.4763.041. (CXX) g++ options: -std=gnu++11 -O3 -fomit-frame-pointer -rdynamic

OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 1.8Benchmark: SolitaireLLVM Clang 9.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 6.0.120406080100SE +/- 0.15, N = 3SE +/- 0.15, N = 3SE +/- 0.15, N = 3SE +/- 0.13, N = 3SE +/- 0.07, N = 387.0686.9886.9686.8586.681. (CXX) g++ options: -std=gnu++11 -O3 -fomit-frame-pointer -rdynamic

OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 1.8Benchmark: QuasigroupLLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 7.1.0LLVM Clang 6.0.1LLVM Clang 8.0.1306090120150SE +/- 1.97, N = 4SE +/- 0.19, N = 3SE +/- 0.14, N = 3SE +/- 0.05, N = 3SE +/- 0.18, N = 3144.57141.48141.39140.39139.841. (CXX) g++ options: -std=gnu++11 -O3 -fomit-frame-pointer -rdynamic

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 ThroughputLLVM Clang 9.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 6.0.14080120160200SE +/- 0.72, N = 3SE +/- 0.67, N = 3SE +/- 0.22, N = 3SE +/- 0.50, N = 3SE +/- 0.29, N = 3166.39167.20168.25169.26173.00-lm-lm-lm1. (CC) gcc options: -O3 -march=native -rdynamic

PostgreSQL pgbench

This is a simple benchmark of PostgreSQL using pgbench. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 12.0Scaling: Buffer Test - Test: Normal Load - Mode: Read OnlyLLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 9.0.130K60K90K120K150KSE +/- 25.26, N = 3SE +/- 53.59, N = 3SE +/- 145.94, N = 3SE +/- 324.39, N = 3SE +/- 125.00, N = 3147464.45147812.13148726.70148890.92149135.211. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

CppPerformanceBenchmarks

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

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: CtypeLLVM Clang 7.1.0LLVM Clang 6.0.1LLVM Clang 9.0.1LLVM Clang 10 20191217LLVM Clang 8.0.1816243240SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 335.7035.3134.9432.9631.091. (CXX) g++ options: -O3 -march=native -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Math LibraryLLVM Clang 10 20191217LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 7.1.090180270360450SE +/- 1.19, N = 3SE +/- 1.36, N = 3SE +/- 1.15, N = 3SE +/- 0.18, N = 3SE +/- 0.16, N = 3408.08408.08407.30406.93406.431. (CXX) g++ options: -O3 -march=native -std=c++11

OpenBenchmarking.orgSeconds, Fewer Is BetterCppPerformanceBenchmarks 9Test: Function ObjectsLLVM Clang 7.1.0LLVM Clang 9.0.1LLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 10 2019121748121620SE +/- 0.05, N = 3SE +/- 0.06, N = 3SE +/- 0.06, N = 3SE +/- 0.06, N = 3SE +/- 0.06, N = 316.1416.1416.1316.0015.941. (CXX) g++ options: -O3 -march=native -std=c++11

NGINX Benchmark

This is a test of ab, which is the Apache Benchmark program running against nginx. This test profile measures how many requests per second a given system can sustain when carrying out 2,000,000 requests with 500 requests being carried out concurrently. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterNGINX Benchmark 1.9.9Static Web Page ServingLLVM Clang 6.0.1LLVM Clang 8.0.1LLVM Clang 10 20191217LLVM Clang 7.1.0LLVM Clang 9.0.16K12K18K24K30KSE +/- 196.08, N = 3SE +/- 159.38, N = 3SE +/- 296.45, N = 3SE +/- 71.67, N = 3SE +/- 42.55, N = 325228.4425503.6925528.1425579.0025695.321. (CC) gcc options: -lpthread -lcrypt -lcrypto -lz -O3 -march=native

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 ServingLLVM Clang 10 20191217LLVM Clang 6.0.1LLVM Clang 7.1.0LLVM Clang 8.0.1LLVM Clang 9.0.14K8K12K16K20KSE +/- 149.42, N = 15SE +/- 245.39, N = 3SE +/- 250.20, N = 4SE +/- 218.99, N = 3SE +/- 106.43, N = 318326.2719278.2519824.9620224.7820345.021. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native

LLVM Clang 6.0.1

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 6.0.1 + LLVM 6.0.1, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

Testing initiated at 19 December 2019 08:17 by user phoronix.

LLVM Clang 7.1.0

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 7.1.0 + LLVM 7.1.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

Testing initiated at 18 December 2019 17:21 by user phoronix.

LLVM Clang 8.0.1

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 8.0.1 + LLVM 8.0.1, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

Testing initiated at 18 December 2019 11:34 by user phoronix.

LLVM Clang 9.0.1

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 9.0.1 + LLVM 9.0.1, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

Testing initiated at 18 December 2019 06:32 by user phoronix.

LLVM Clang 10 20191217

Processor: Intel Core i7-5960X @ 3.50GHz (8 Cores / 16 Threads), Motherboard: ASRock X99 Extreme3 (P3.70 BIOS), Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: 120GB INTEL SSDSC2BW12, Graphics: AMD FirePro V7900 2GB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Intel I218-V

OS: Ubuntu 19.10, Kernel: 5.3.0-24-generic (x86_64), Desktop: GNOME Shell 3.34.1, Display Server: X Server 1.20.5, Display Driver: modesetting 1.20.5, Compiler: Clang 10.0.0, File-System: ext4, Screen Resolution: 1920x1080

Environment Notes: CXXFLAGS="-O3 -march=native" CFLAGS="-O3 -march=native"
Compiler Notes: Optimized build; Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave - CPU Microcode: 0x43
Python Notes: Python 2.7.17rc1 + Python 3.7.5
Security Notes: itlb_multihit: KVM: Mitigation of Split huge pages + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + 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 generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + tsx_async_abort: Not affected

Testing initiated at 17 December 2019 19:57 by user phoronix.