Re: Recent poor DVD playback performance
- From: Philip Walden <pwaldenlinux@xxxxxxxxxxx>
- Date: Mon, 27 Nov 2006 16:54:27 -0800
Andy Green wrote:
Philip Walden wrote:
Top says Xorg0 @ 68%, mplayer @ 28%.
Might it be the offscreen compositing stuff somehow? If there is something like this floating around in /etc/X11/xorg.conf
Section "Extensions"
Option "Composite" "Enable"
EndSection
try setting it to Disable and restart X.
Looks like it is a xorg bug such that it does not set MTRR reducing AGP
performance by 2X:
https://bugs.freedesktop.org/show_bug.cgi?id=6221
https://bugs.freedesktop.org/show_bug.cgi?id=5801
Explains why I am seeing this recently too as xorg 7.0 was installed late August. Fixed in xorg 7.1
I submitted a bug to redhat
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=217446
After manually setting /proc/mtrr, xorg cpu usage has dropped from 70% to 20%.
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