** Summary changed: - xorg 10-20% cpu usage after intrepid upgrade, general system sluggishness + MASTER: xorg high cpu usage, general system sluggishness
** Description changed: - After the recent upgrade to 8.10 via update-manager -d, my whole system - is quite laggy. + Sometimes Xorg is shown in htop, top, ps, etc. as having a higher than + expected CPU load. Perhaps 100%, 50%, 10-20%... Higher than the 1-5% + that you normally expect. + + Sometimes this is accompanied by general system sluggishness, sometimes + the fan runs at full tilt. + + This is not a single specific bug but rather is a generic symptom that + can be caused by a wide variety of different underlying problems. This + bug report is left open just as a placeholder and point for general + discussion about this class of issue. + + In general, MOST of the time the issue is NOT X, but rather a client + program that is just out of control making X calls. X is a server and + just responds to client requests as best it can. If a client app is + going nuts, like making a really expensive X call every few seconds, + you'll see the high CPU indicated against X, even though the problem is + really the client application's poorly optimized algorithm. + + A troubleshooting guide for this class of problem is available here: + + https://wiki.ubuntu.com/X/Troubleshooting/HighCPU + + Usually by starting or killing various programs, daemons, services, and + so on you can narrow in on what is causing the load. + + Remember, your high CPU is probably NOT caused by X, so figure out which + application is driving X, and file a new bug against THAT package. + + + [Original Report] + After the recent upgrade to 8.10 via update-manager -d, my whole system is quite laggy. Xorg now sits at the top of the cpu usage list constantly using 10 - 20%, whereas under hardy it would sit at 1-2%. Opening programs can be at times quite slow, for instance, gedit can take 10+ seconds to open and load a txt file. Xorg.0.log seems normal enough till the end where I'll get several lines like this: AUDIT: Fri Nov 7 10:05:47 2008: 6071 X: client 4 rejected from local host ( uid=0 gid=0 pid=6545 ) System: Linux WORKSHOP 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux P4 3.4Ghz, 1 Gb RAM, Nvidia 8400gs with the 177 driver I'm not sure what other info is required, I'm sure someone will let me know... others possibly having the same issues: http://ubuntuforums.org/showthread.php?t=966629 http://ubuntuforums.org/showthread.php?t=967839 http://ubuntuforums.org/showthread.php?t=970714 http://ubuntuforums.org/showthread.php?t=965897 -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
