During the past few weeks, my Rawhide system (A31p Thinkpad Laptop, 1G RAM, 2GHz CPU, running KDE desktop) has been running noticably slower (starts out OK but gets worse over time), particularly with Thunderbird, Firefox and other GUI tools but not so with Emacs, FWIW. I've been scratching my head trying to figure out how to characterize the slowdown in order to say something useful and file a bug report if appropriate but until now about all I could say was "... boy this system seems slower ... maybe if I do an update it will cure whatever ails it ..." only to find out that no magic bullet was available from yum yet. But a few minutes ago, I started playing with multiple X sessions via the "Switch User" facility. I created a root session on Ctrl-Alt-F8 running Gnome. Then I set about to enable sound to run for multiple Users running both KDE and Gnome to run the Soundcard Detection tool and configuring /etc/profile to set the permissions for multiple simultaneous sound car users. I discovered, much to my surprise that the F8 (GNOME) session works perfectly normally while the F7 session (KDE). Which is not to suggest that I think this is a desktop selection issue by any stretch. Now I think I have enough information to solicit suggestions that are more meaningful than the terse "man oprofile" suggestion that I received a few days ago towards getting to the root of the issue. Even better, it would be good to know if anyone else running a remotely similar environment (rawhide, KDE, thunderbird, firefox) is experiencing similar performance slowdowns with the GUI tools. When running top, I see that X is consuming 40% of memory which is not surprising since I am running two X sessions with 3200x1200 (dual head, radeon, open source) along with long running firefox, thunderbird and VNC (also 3200x1200) apps). But when I bring up the Soundcard Detection tool under KDE top shows Xorg is consistently grabbing 93% of the CPU even when all I am doing is typing this message. That would certainly explain a lot of the lag in response to mouse clicks from the app. :-) Switching to Gnome and running top there shows varying, but high (60%ish) CPU use with the Soundcard Detection tool still running in both sessions. But with Gnome, response to mousee clicks is fine, even with the high X CPU use. So I'm still scratching my head but something about the KDE environment is causing a performance problem for my system. -pmr -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
