rawhide slow like a snail because of kernel debugging?

[Michael Schwendt]

It has begun some weeks ago in rawhide and is the same in F9 Alpha,
which I installed from jigdo CD images.

The entire system is slow whatever it does. Loadavg jumps up
quickly. When running a simple yum update, loadavg goes above 6. User
processes don't seem to get as much cpu power as would be possible.
Windows take seconds to open. The GNOME Desktop is not as responsive
as in F8 either. Opening dialogs, clicking buttons, there seems to be
a penalty on everything. It's unbearable. Testing rawhide or F9 is no
fun at all. Why is this? I remember that during Fedora Core test
releases various kernel debugging features are enabled. Is this the
reason also this time? Has it become much more cpu power hungry than
e.g. with FC7 and older?