[Mplayer-users] fastmemcpy benchmark

Sun Apr 22 15:04:20 CEST 2001

Am Sonntag, 22. April 2001 14:48 schrieben Sie:
> # ./fastmem.sh
> > k6 : v2-v1=915325227 = 1826477us  (54.750fps)   82.1MB/s
> > mmx: v2-v1=790536059 = 1577468us  (63.393fps)   95.1MB/s
> > mga-k6 : v2-v1=3012802007 = 6011851us  (16.634fps)   25.0MB/s
> > mga-mmx: v2-v1=3798322327 = 7579307us  (13.194fps)   19.8MB/s
>
> It's really a little slow, here are results to compare (first and second
> run), system is PIII 750 Coppermine at 930MHz with 512MB SD-RAM (CL3),
> Board is Abit BX6 2.0 with Intel 440BX chipset:
>
> atmosfear:~/develop/mplayer/main/TOOLS # ./fastmem.sh
> k7 : v2-v1=199387832 = 214239us  (466.768fps)  700.2MB/s
> mmx: v2-v1=618539835 = 664605us  (150.465fps)  225.7MB/s
> sse: v2-v1=203580149 = 218742us  (457.160fps)  685.7MB/s

Now that is definitly faster than the memory interface! The benchmark is 
measuring cache speed again... What's the result with video-mem? 

gruel

/*  AMD K6 200Mhz, 128 MB PC66-SDRAM, FIC PA-2007, 1MB L2-Cache)
    mmx: v2-v1=1035809490 = 5167235us  (19.353fps)   29.0MB/s   */

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