27 Feb
2004
27 Feb
'04
3:09 p.m.
On Fri, 2004-02-27 at 13:10, Denis Sbragion wrote:
Don't know if it is the way I use them (I
perform really long FFTs
of complex data, the FFTW3 benchmark instead stops at around 260.000
items), or just the FFTW3 benchmark that is using different versions, but
my data don't correlate really well with the FFTW3 benchmarks. Anyway take
all this data with a grain of salt, these are just my impressions, not
accurately measured benchmarks, which by itself should be taken already
with more than a grain of salt.
Here are some numbers from my benchmark... On 2.4 GHz Celeron.
Ooura:
59 us / 1024 point complex FFT (single), 16949 FFTs/s, 17.356 MS/s
86 us / 1024 point complex FFT (double), 11628 FFTs/s, 11.907 MS/s
32 us / 1024 point real FFT (single), 31250 FFTs/s, 32.000 MS/s
365 us / 8192 point real FFT (single), 2740 FFTs/s, 22.444 MS/s
8350 us / 65536 point real FFT (single), 120 FFTs/s, 7.849 MS/s
FFTW3:
43 us / 1024 point complex FFT (single), 23256 FFTs/s, 23.814 MS/s
70 us / 1024 point complex FFT (double), 14286 FFTs/s, 14.629 MS/s
42 us / 1024 point real FFT (single), 23810 FFTs/s, 24.381 MS/s
490 us / 8192 point real FFT (single), 2041 FFTs/s, 16.718 MS/s
30420 us / 65536 point real FFT (single), 33 FFTs/s, 2.154 MS/s
--
Jussi Laako <jussi.laako(a)pp.inet.fi>