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core2-Quad_gcc-4.5_x32_Ubuntu-11.04.md

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Ubuntu 11.04, gcc 4.5, 32-bit, fftw 3.2 on a 2.66 core 2 quad

Built with:

gcc -o test_pffft -DHAVE_FFTW -msse -mfpmath=sse -O3 -Wall -W pffft.c test_pffft.c fftpack.c -L/usr/local/lib -I/usr/local/include/ -lfftw3f -lm
input len real FFTPack real FFTW real PFFFT cplx FFTPack cplx FFTW cplx PFFFT
64 1920 3614 5120 2194 7680 6467
96 1873 3549 5187 2107 8429 5863
128 2240 3773 5514 2560 7964 6827
192 1765 4569 7767 2284 9137 7061
256 2048 5461 7447 2731 9638 7802
384 1998 5861 6762 2313 9253 7644
512 2095 6144 7680 2194 10240 7089
768 2230 5773 7549 2045 10331 7010
1024 2133 6400 8533 2133 10779 7877
2048 2011 7040 8665 1942 10240 7768
4096 2194 6827 8777 1755 9452 6827
8192 1849 6656 6656 1752 7831 6827
9216 1871 5858 6416 1643 6909 6266
16384 1883 6223 6506 1664 7340 6982
32768 1826 6390 6667 1631 7481 6971
262144 1546 4075 5977 1299 3415 3551
1048576 1104 2071 1730 1104 1149 1834