GCC 6.1 Compiler Optimization Benchmarks GCC 6.1.0 compiler benchmarks with different optimization flags. Intel Xeon E5-2687W v3 GCC compiler benchmarks on Debian. Tests by Michael Larabel of Phoronix for a future article.
HTML result view exported from: https://openbenchmarking.org/result/1605083-HA-GCCOPTIMI43&grs .
GCC 6.1 Compiler Optimization Benchmarks Processor Motherboard Chipset Memory Disk Graphics Audio Monitor Network OS Kernel Display Server Display Driver OpenGL Compiler File-System Screen Resolution -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores) MSI X99S SLI PLUS (MS-7885) v1.0 Intel Xeon E7 v3/Xeon 16384MB PNY CS1211 120GB + 80GB INTEL SSDSCKGW08 AMD FirePro V7900 2048MB Realtek ALC892 ASUS PB278 Intel Connection Debian testing 4.5.0-1-amd64 (x86_64) X Server 1.18.3 modesetting 1.18.3 3.3 Mesa 11.1.3 Gallium 0.4 GCC 6.1.0 ext4 2560x1440 OpenBenchmarking.org Compiler Details - --disable-multilib --enable-checking=release Processor Details - Scaling Governor: intel_pstate powersave
GCC 6.1 Compiler Optimization Benchmarks encode-flac: WAV To FLAC himeno: Poisson Pressure Solver graphics-magick: Local Adaptive Thresholding encode-mp3: WAV To MP3 hint: FLOAT graphics-magick: Sharpen build-php: Time To Compile build-imagemagick: Time To Compile graphics-magick: Resizing graphics-magick: HWB Color Space graphics-magick: Blur redis: LPUSH redis: SADD redis: SET redis: GET redis: LPOP pgbench: Buffer Test - Single Thread - Read Write scimark2: Monte Carlo pgbench: Buffer Test - Heavy Contention - Read Write scimark2: Sparse Matrix Multiply scimark2: Fast Fourier Transform pgbench: Buffer Test - Normal Load - Read Write scimark2: Dense LU Matrix Factorization scimark2: Composite scimark2: Jacobi Successive Over-Relaxation hmmer: Pfam Database Search -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 46.74 424.57 17 36.02 103731655.85 71 5.58 9.34 97 110 82 476295.97 491891.31 479934.92 548655.63 547091.88 303.93 545.51 4840.76 2565.94 440.57 4468.97 2454.12 1407.02 1028.95 13.82 10.62 1181.18 68 16.28 303914359.33 124 11.61 32.43 168 188 110 598808.52 607478.25 596757.10 645755.96 642758.08 346.32 552.04 4497.15 2589.56 456.35 4275.85 2482.13 1426.79 1053.88 10.68 8.11 1102.64 54 17.15 326497871.93 100 8.18 13.35 149 168 113 602047.96 582272.77 592312.44 652904.39 637156.51 353.15 546.26 4538.18 2580.32 456.61 4364.38 2521.75 1427.70 1033.56 8.23 7.68 1060.93 76 15.14 242450705.97 135 9.76 27.24 168 187 137 589230.57 605722.93 597265.48 655681.23 655900.13 351.47 551.44 4494.38 2609.45 447.31 4257.86 2534.08 1437.73 1046.36 10.19 6.68 1916.56 82 14.26 317711776.83 134 16.08 38.55 174 186 131 599526.56 598759.46 586099.29 628643.96 649030.83 363.87 537.90 4494.08 2571.06 461.55 4322.67 2534.23 1426.80 1029.27 11.63 6.83 1895.45 83 12.52 312279718.27 136 17.59 55.45 171 185 130 593409.02 605861.48 587251.75 669846.73 646935.48 351.89 547.85 4720.08 2622.50 458.56 4495.93 2531.29 1442.30 1051.27 13.08 7.01 2113.04 85 12.45 310268777.87 143 18.10 55.40 180 190 138 584299.37 615258.45 584905.04 631189.52 655097.69 349.97 547.58 4539.62 2440.96 443.71 4281.30 2468.30 1388.10 1039.94 13.04 2150.96 312975471.93 82.86 121.45 614.59 2511.39 465.50 2586.62 1445.10 1047.43 7.03 2019.61 86 11.34 309403432.89 145 17.99 55.89 182 204 144 598935.85 616016.48 588019.67 631191.87 656696.79 553.28 2517.37 468.61 2519.72 1421.80 1050.05 8.32 OpenBenchmarking.org
FLAC Audio Encoding WAV To FLAC OpenBenchmarking.org Seconds, Fewer Is Better FLAC Audio Encoding 1.3.1 WAV To FLAC -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 11 22 33 44 55 SE +/- 0.12, N = 5 SE +/- 0.05, N = 5 SE +/- 0.07, N = 5 SE +/- 0.04, N = 5 SE +/- 0.07, N = 5 SE +/- 0.04, N = 5 SE +/- 0.10, N = 5 SE +/- 0.04, N = 5 46.74 10.62 8.11 7.68 6.68 6.83 7.01 7.03 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CXX) g++ options: -fvisibility=hidden -lm
Himeno Benchmark Poisson Pressure Solver OpenBenchmarking.org MFLOPS, More Is Better Himeno Benchmark 3.0 Poisson Pressure Solver -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 500 1000 1500 2000 2500 SE +/- 0.64, N = 3 SE +/- 3.40, N = 3 SE +/- 1.19, N = 3 SE +/- 1.09, N = 3 SE +/- 4.78, N = 3 SE +/- 6.74, N = 3 SE +/- 9.13, N = 3 SE +/- 7.85, N = 3 SE +/- 3.96, N = 3 424.57 1181.18 1102.64 1060.93 1916.56 1895.45 2113.04 2150.96 2019.61 -O0 -Os -Og -O1 -O2 -march=native -march=native -flto -Ofast -march=native 1. (CC) gcc options: -O3 -mavx2
GraphicsMagick Operation: Local Adaptive Thresholding OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.19 Operation: Local Adaptive Thresholding -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 20 40 60 80 100 SE +/- 0.00, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.58, N = 3 SE +/- 0.33, N = 3 17 68 54 76 82 83 85 86 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -fopenmp -pthread -lXext -lSM -lICE -lX11 -lz -lm -ldl -lpthread
LAME MP3 Encoding WAV To MP3 OpenBenchmarking.org Seconds, Fewer Is Better LAME MP3 Encoding 3.99.3 WAV To MP3 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 8 16 24 32 40 SE +/- 0.09, N = 5 SE +/- 0.06, N = 5 SE +/- 0.06, N = 5 SE +/- 0.08, N = 5 SE +/- 0.10, N = 5 SE +/- 0.09, N = 5 SE +/- 0.10, N = 5 SE +/- 0.07, N = 5 36.02 16.28 17.15 15.14 14.26 12.52 12.45 11.34 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -pipe -lm
Hierarchical INTegration Test: FLOAT OpenBenchmarking.org QUIPs, More Is Better Hierarchical INTegration 1.0 Test: FLOAT -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 70M 140M 210M 280M 350M SE +/- 246206.62, N = 3 SE +/- 119724.21, N = 3 SE +/- 179064.26, N = 3 SE +/- 222306.33, N = 3 SE +/- 1047951.03, N = 3 SE +/- 978215.41, N = 3 SE +/- 619811.97, N = 3 SE +/- 100984.48, N = 3 SE +/- 547786.00, N = 3 103731655.85 303914359.33 326497871.93 242450705.97 317711776.83 312279718.27 310268777.87 312975471.93 309403432.89 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CC) gcc options: -lm
GraphicsMagick Operation: Sharpen OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.19 Operation: Sharpen -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 30 60 90 120 150 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 71 124 100 135 134 136 143 145 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -fopenmp -pthread -lXext -lSM -lICE -lX11 -lz -lm -ldl -lpthread
Timed PHP Compilation Time To Compile OpenBenchmarking.org Seconds, Fewer Is Better Timed PHP Compilation 5.2.9 Time To Compile -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 20 40 60 80 100 SE +/- 0.02, N = 3 SE +/- 0.06, N = 3 SE +/- 0.01, N = 3 SE +/- 0.02, N = 3 SE +/- 0.04, N = 3 SE +/- 0.01, N = 3 SE +/- 0.19, N = 3 SE +/- 0.10, N = 3 SE +/- 0.04, N = 3 5.58 11.61 8.18 9.76 16.08 17.59 18.10 82.86 17.99 -Os -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CC) gcc options: -pedantic -ldl -lz -lm
Timed ImageMagick Compilation Time To Compile OpenBenchmarking.org Seconds, Fewer Is Better Timed ImageMagick Compilation 6.9.0 Time To Compile -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 30 60 90 120 150 SE +/- 0.10, N = 3 SE +/- 0.08, N = 3 SE +/- 0.13, N = 3 SE +/- 0.21, N = 3 SE +/- 0.06, N = 3 SE +/- 0.14, N = 3 SE +/- 0.23, N = 3 SE +/- 0.25, N = 3 SE +/- 0.09, N = 3 9.34 32.43 13.35 27.24 38.55 55.45 55.40 121.45 55.89
GraphicsMagick Operation: Resizing OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.19 Operation: Resizing -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 40 80 120 160 200 SE +/- 0.00, N = 3 SE +/- 0.58, N = 3 SE +/- 0.33, N = 3 SE +/- 1.00, N = 3 SE +/- 0.67, N = 3 SE +/- 0.00, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 97 168 149 168 174 171 180 182 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -fopenmp -pthread -lXext -lSM -lICE -lX11 -lz -lm -ldl -lpthread
GraphicsMagick Operation: HWB Color Space OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.19 Operation: HWB Color Space -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 40 80 120 160 200 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.58, N = 3 SE +/- 0.33, N = 3 SE +/- 0.58, N = 3 SE +/- 0.33, N = 3 110 188 168 187 186 185 190 204 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -fopenmp -pthread -lXext -lSM -lICE -lX11 -lz -lm -ldl -lpthread
GraphicsMagick Operation: Blur OpenBenchmarking.org Iterations Per Minute, More Is Better GraphicsMagick 1.3.19 Operation: Blur -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 30 60 90 120 150 SE +/- 0.00, N = 3 SE +/- 0.58, N = 3 SE +/- 1.53, N = 3 SE +/- 0.33, N = 3 SE +/- 0.33, N = 3 SE +/- 0.58, N = 3 SE +/- 1.20, N = 3 SE +/- 0.33, N = 3 82 110 113 137 131 130 138 144 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -fopenmp -pthread -lXext -lSM -lICE -lX11 -lz -lm -ldl -lpthread
Redis Test: LPUSH OpenBenchmarking.org Requests Per Second, More Is Better Redis 3.0.1 Test: LPUSH -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 130K 260K 390K 520K 650K SE +/- 2663.98, N = 3 SE +/- 1356.34, N = 3 SE +/- 553.25, N = 3 SE +/- 8590.61, N = 6 SE +/- 1359.59, N = 3 SE +/- 4012.35, N = 3 SE +/- 11218.12, N = 6 SE +/- 2036.63, N = 3 476295.97 598808.52 602047.96 589230.57 599526.56 593409.02 584299.37 598935.85 1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl
Redis Test: SADD OpenBenchmarking.org Requests Per Second, More Is Better Redis 3.0.1 Test: SADD -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 130K 260K 390K 520K 650K SE +/- 1350.43, N = 3 SE +/- 4522.27, N = 3 SE +/- 11078.60, N = 6 SE +/- 2982.88, N = 3 SE +/- 9681.71, N = 3 SE +/- 3715.65, N = 3 SE +/- 126.17, N = 3 SE +/- 126.46, N = 3 491891.31 607478.25 582272.77 605722.93 598759.46 605861.48 615258.45 616016.48 1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl
Redis Test: SET OpenBenchmarking.org Requests Per Second, More Is Better Redis 3.0.1 Test: SET -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 130K 260K 390K 520K 650K SE +/- 7680.16, N = 3 SE +/- 5397.69, N = 3 SE +/- 1909.49, N = 3 SE +/- 1956.89, N = 3 SE +/- 6845.46, N = 3 SE +/- 8111.26, N = 5 SE +/- 8041.99, N = 3 SE +/- 2097.48, N = 3 479934.92 596757.10 592312.44 597265.48 586099.29 587251.75 584905.04 588019.67 1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl
Redis Test: GET OpenBenchmarking.org Requests Per Second, More Is Better Redis 3.0.1 Test: GET -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 140K 280K 420K 560K 700K SE +/- 1566.53, N = 3 SE +/- 3565.12, N = 3 SE +/- 2604.35, N = 3 SE +/- 5335.15, N = 3 SE +/- 5831.74, N = 3 SE +/- 4253.76, N = 3 SE +/- 10870.06, N = 4 SE +/- 6785.13, N = 3 548655.63 645755.96 652904.39 655681.23 628643.96 669846.73 631189.52 631191.87 1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl
Redis Test: LPOP OpenBenchmarking.org Requests Per Second, More Is Better Redis 3.0.1 Test: LPOP -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 140K 280K 420K 560K 700K SE +/- 3542.72, N = 3 SE +/- 12533.78, N = 3 SE +/- 8860.98, N = 6 SE +/- 2503.49, N = 3 SE +/- 5733.33, N = 3 SE +/- 11650.40, N = 6 SE +/- 10960.53, N = 3 SE +/- 5651.00, N = 3 547091.88 642758.08 637156.51 655900.13 649030.83 646935.48 655097.69 656696.79 1. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl
PostgreSQL pgbench Scaling: Buffer Test - Test: Single Thread - Mode: Read Write OpenBenchmarking.org TPS, More Is Better PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Single Thread - Mode: Read Write -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 80 160 240 320 400 SE +/- 4.48, N = 6 SE +/- 4.13, N = 3 SE +/- 5.68, N = 6 SE +/- 5.58, N = 3 SE +/- 2.06, N = 3 SE +/- 2.78, N = 3 SE +/- 1.70, N = 3 303.93 346.32 353.15 351.47 363.87 351.89 349.97 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 1. (CC) gcc options: -fno-strict-aliasing -fwrapv -pthread -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm
SciMark Computational Test: Monte Carlo OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Monte Carlo -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 130 260 390 520 650 SE +/- 6.16, N = 4 SE +/- 1.68, N = 4 SE +/- 5.79, N = 4 SE +/- 1.22, N = 4 SE +/- 9.59, N = 4 SE +/- 3.64, N = 4 SE +/- 5.84, N = 4 SE +/- 6.00, N = 4 SE +/- 1.67, N = 4 545.51 552.04 546.26 551.44 537.90 547.85 547.58 614.59 553.28 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
PostgreSQL pgbench Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write OpenBenchmarking.org TPS, More Is Better PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 1000 2000 3000 4000 5000 SE +/- 21.91, N = 3 SE +/- 27.80, N = 3 SE +/- 54.29, N = 3 SE +/- 67.44, N = 4 SE +/- 19.05, N = 3 SE +/- 40.24, N = 3 SE +/- 66.74, N = 3 4840.76 4497.15 4538.18 4494.38 4494.08 4720.08 4539.62 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 1. (CC) gcc options: -fno-strict-aliasing -fwrapv -pthread -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm
SciMark Computational Test: Sparse Matrix Multiply OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Sparse Matrix Multiply -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 600 1200 1800 2400 3000 SE +/- 9.07, N = 4 SE +/- 21.77, N = 4 SE +/- 13.12, N = 4 SE +/- 3.88, N = 4 SE +/- 32.30, N = 4 SE +/- 9.06, N = 4 SE +/- 12.32, N = 4 SE +/- 24.76, N = 4 SE +/- 19.13, N = 4 2565.94 2589.56 2580.32 2609.45 2571.06 2622.50 2440.96 2511.39 2517.37 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
SciMark Computational Test: Fast Fourier Transform OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Fast Fourier Transform -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 100 200 300 400 500 SE +/- 5.60, N = 4 SE +/- 1.29, N = 4 SE +/- 3.34, N = 4 SE +/- 3.48, N = 4 SE +/- 2.20, N = 4 SE +/- 2.05, N = 4 SE +/- 1.70, N = 4 SE +/- 3.19, N = 4 SE +/- 0.63, N = 4 440.57 456.35 456.61 447.31 461.55 458.56 443.71 465.50 468.61 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
PostgreSQL pgbench Scaling: Buffer Test - Test: Normal Load - Mode: Read Write OpenBenchmarking.org TPS, More Is Better PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Write -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 1000 2000 3000 4000 5000 SE +/- 44.94, N = 3 SE +/- 32.55, N = 3 SE +/- 64.39, N = 5 SE +/- 80.41, N = 6 SE +/- 62.15, N = 5 SE +/- 64.78, N = 6 SE +/- 18.80, N = 3 4468.97 4275.85 4364.38 4257.86 4322.67 4495.93 4281.30 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native 1. (CC) gcc options: -fno-strict-aliasing -fwrapv -pthread -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm
SciMark Computational Test: Dense LU Matrix Factorization OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Dense LU Matrix Factorization -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 600 1200 1800 2400 3000 SE +/- 26.42, N = 4 SE +/- 18.22, N = 4 SE +/- 4.63, N = 4 SE +/- 7.15, N = 4 SE +/- 3.32, N = 4 SE +/- 7.24, N = 4 SE +/- 10.80, N = 4 SE +/- 28.87, N = 4 SE +/- 11.60, N = 4 2454.12 2482.13 2521.75 2534.08 2534.23 2531.29 2468.30 2586.62 2519.72 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
SciMark Computational Test: Composite OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Composite -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 300 600 900 1200 1500 SE +/- 8.59, N = 4 SE +/- 2.83, N = 4 SE +/- 3.98, N = 4 SE +/- 1.73, N = 4 SE +/- 7.42, N = 4 SE +/- 2.58, N = 4 SE +/- 4.89, N = 4 SE +/- 7.57, N = 4 SE +/- 5.38, N = 4 1407.02 1426.79 1427.70 1437.73 1426.80 1442.30 1388.10 1445.10 1421.80 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
SciMark Computational Test: Jacobi Successive Over-Relaxation OpenBenchmarking.org Mflops, More Is Better SciMark 2.0 Computational Test: Jacobi Successive Over-Relaxation -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 200 400 600 800 1000 SE +/- 9.29, N = 4 SE +/- 1.16, N = 4 SE +/- 8.62, N = 4 SE +/- 3.32, N = 4 SE +/- 12.72, N = 4 SE +/- 2.16, N = 4 SE +/- 6.48, N = 4 SE +/- 6.06, N = 4 SE +/- 0.76, N = 4 1028.95 1053.88 1033.56 1046.36 1029.27 1051.27 1039.94 1047.43 1050.05 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -O3 -march=native -flto -Ofast -march=native 1. (CXX) g++ options:
Timed HMMer Search Pfam Database Search OpenBenchmarking.org Seconds, Fewer Is Better Timed HMMer Search 2.3.2 Pfam Database Search -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 4 8 12 16 20 SE +/- 0.01, N = 3 SE +/- 0.19, N = 3 SE +/- 0.05, N = 3 SE +/- 0.16, N = 6 SE +/- 0.51, N = 6 SE +/- 0.35, N = 6 SE +/- 0.68, N = 6 SE +/- 0.27, N = 6 13.82 10.68 8.23 10.19 11.63 13.08 13.04 8.32 -O0 -Os -Og -O1 -O2 -O3 -O3 -march=native -Ofast -march=native 1. (CC) gcc options: -pthread -lhmmer -lsquid -lm
Phoronix Test Suite v10.8.4