Public bug reported:
Binary package hint: xchat
I'm on a fairly slow machine, but it's generally perfectly snappy.
Experienced with nouveau from edgers and with restricted nvidia driver.
With xchat open but minimized, idle compiz cpu usage is around 2% to 5%.
With xchat restored, with an idle channel visible, compiz cpu usage goes to
40%, and other desktop operations (dragging windows, working in other
applications) becomes noticeably jittery / laggy.
Minimizing xchat again brings compiz cpu usage back down to idle.
This occurs on a freshly restarted compiz and xchat process. (via
closing and quiting xchat and "compiz --replace")
Running
> strace -p $(pidof compiz) -o /tmp/strace-compiz-$MODE & strace -p $(pidof
> xchat) -o /tmp/strace-xchat-$MODE & sleep 2s; kill %1; kill %2
with xchat minimized and visible (the output of which is attached) shows both
compiz and xchat with an order of magnitude more activity while visible (again
with only an idle channel visible).
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xchat 2.8.6-4ubuntu5
Uname: Linux 2.6.34-020634-generic i686
Architecture: i386
Date: Sat Jun 26 02:13:49 2010
ProcEnviron:
LANGUAGE=en_CA:en
PATH=(custom, no user)
LANG=en_CA.utf8
SHELL=/bin/bash
SourcePackage: xchat
** Affects: xchat (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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Unminimized xchat window consistently causes high compiz cpu usage and poor
compiz performance
https://bugs.launchpad.net/bugs/598746
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