[Mplayer-users] fastmemcpy benchmark

Christoph H. Lampert gruel at gmx.de
Sun Apr 22 12:36:53 CEST 2001

Am Sonntag, 22. April 2001 12:17 schrieben Sie:
> Highly interesting....
> Asus P5A, K6-2/500, G200/16MB. Linux 2.4.3.
> # ./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

Hey, where did these come from? They are not in the CVS I get! 
Only the fastmem.sh script is, but not the programs it tries to call!

> I had an idea about memory bandwidth of this system sucking big time. But
> *this* bad...??
> How come the mga-* test is so much worse than the others? Does this
> indicate a bug? (Using the module in latest cvs.)

I don't think so. test mga-  version tests graphics memory, which is 
slower than main memory (no caching?) 


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