ubuntu 8.10 with nvidia 8400gs graphic card with two screens and xinerama(no randr extension). 1)i upgraded to 180 drivers 2)added this lines in xorg Option "PixmapCacheSize" "1000000" Option "AllowSHMPixmaps" "0" 3)Run this after X has started: # nvidia-settings -a InitialPixmapPlacement=2 -a GlyphCache=1 4)added option "MigrationHeuristics" "greedy" in xorg.conf
Now firefox is much more responsive, but while using google maps or simple resizing gnome-terminal Xorg eats cpu around 50-100%. i attached oprofile report. I think the battlecneck is somewhere in nvidia drivers, maybe in interface "linux kernel(vmlinux)" - "nvidia userspace(nvidia_drv.so)", which eats most cpu cycles. ** Attachment added: "oprofile" http://launchpadlibrarian.net/25342240/oprofile -- MASTER: xorg high cpu usage, general system sluggishness https://bugs.launchpad.net/bugs/294972 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
