[Mplayer-users] Question: Fastmemcpy and 3dnow

[mgraffam at idsi.net]

On Thu, 19 Apr 2001, Christoph Lampert wrote:

> Did you use a loop and devide by 100? I guess you shouldn't!
> The array of 100000 Bytes fits (at least) into L2-Cache, so you measure 
> L2-speed starting with the 2nd iteration. But video data destination will 
> probably not be L2, so the (higher) number you get in a first run would be a 
> better value for comparisson. Am I right?

Actually, when I put it in a tight loop, I was getting spikes of MUCH
higher times here and there. So, after that I inserted a "sleep 1"
in the script after each.

-- 
Michael Graffam (mgraffam at idsi.net)
The importance of a suburban struggle has usually been underestimated;
it is really very great. - Che Guevara (Guerilla Warfare, "Suburban Warfare")


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