Re: CFS review

From: Ingo Molnar
Date: Tue Aug 28 2007 - 23:46:13 EST



* Bill Davidsen <davidsen@xxxxxxx> wrote:

> > There is another way to show the problem visually under X
> > (vesa-driver), by starting 3 gears simultaneously, which after
> > laying them out side-by-side need some settling time before
> > smoothing out. Without __update_curr it's absolutely smooth from
> > the start.
>
> I posted a LOT of stuff using the glitch1 script, and finally found a
> set of tuning values which make the test script run smooth. See back
> posts, I don't have them here.

but you have real 3D hw and DRI enabled, correct? In that case X uses up
almost no CPU time and glxgears makes most of the processing. That is
quite different from the above software-rendering case, where X spends
most of the CPU time.

Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/