On Mon, Apr 8, 2013 at 4:26 AM, Ozan Çağlayan <ozancag(a)gmail.com> wrote:
Hi,
I don't know where to start for debugging but current rawhide on my
SandyBridge laptop is barely usable. Even a window switch takes 1-2
seconds. I looked over powertop and top outputs, load average when
idle (even no gnome-terminal, ran the commands on VT) can be between
0.8-1.1. Xorg is generally at the of top output, 30-40% CPU usage on
average. I also see some irq related stuff for iwlwifi in top output.
I was passing enable_rc6=0 to i915 but removed that but that didn't
help too.
Is there a known issue with 3.9 kernel that you are aware of? What
should I investigate further before opening a bug in bugzilla?
Rawhide kernels have debugging options enabled, which can cause
significant slowdowns in many situations. Try using the
rawhide-kernel-nodebug repository to get non-debug kernels for Rawhide
and see if your problems persist:
http://fedoraproject.org/wiki/RawhideKernelNodebug
-T.C.