https://bugzilla.novell.com/show_bug.cgi?id=818152 https://bugzilla.novell.com/show_bug.cgi?id=818152#c0 Summary: Firefox CPU usage too high Classification: openSUSE Product: openSUSE 12.2 Version: Final Platform: x86-64 OS/Version: openSUSE 12.2 Status: NEW Severity: Normal Priority: P5 - None Component: Firefox AssignedTo: bnc-team-mozilla@forge.provo.novell.com ReportedBy: bart@bartvanassche.be QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:20.0) Gecko/20100101 Firefox/20.0 Since a few days I see that the CPU load on an idle system is about 0.5 while this was about 0.0 in the past. The only GUI processes running are an XFCE desktop, Thunderbird, Firefox and xload. As you can see the number of context switches triggered by the firefox and Xorg processes is excessive. I assume this is what is causing the higher than expected CPU load. # (cd /proc && for p in [0-9]*; do echo "$(grep ^voluntary_ctxt_switches $p/status | { read a b; echo $b; }) $p $(read a b </proc/$p/cmdline; echo $a)"; done)|sort -n -k1|tail -n10 107332 5418 konsole 113373 10648 python 142668 10 153017 591 /usr/sbin/haveged 163157 5459 /home/bart/.juniper_networks/network_connect/ncsvc 171274 5639 /usr/bin/emacs 232544 5229 /usr/lib64/thunderbird/thunderbird-bin 511590 5092 xfwm4 1326397 5227 /usr/lib64/firefox/firefox 1938622 4863 /usr/bin/Xorg # rpm -qf /usr/lib64/firefox/firefox /usr/bin/Xorg MozillaFirefox-20.0-2.41.3.x86_64 xorg-x11-server-7.6_1.12.3-1.25.1.x86_64 Reproducible: Always Steps to Reproduce: 1. Install openSUSE 12.2 64-bit on an Intel system and choose the XFCE desktop. 2. Install the latest updates. 3. Start Firefox. 4. In a shell, run "cat /proc/loadavg". Actual Results: Load often above 0.5. Expected Results: Load below 0.1. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.