top-firefox-scrolling.log 2009/5/2 Stefano Doni <stefano.d...@gmail.com>
> top-idle.log > > 2009/5/2 Stefano Doni <stefano.d...@gmail.com> > > Here's some hard performance data. >> >> I've measured Xorg and firefox CPU consumption in two scenarios: >> >> 1) System completely idle >> 2) Firefox open on gmail, only 1 tab, no firefox extensions, scrolling >> down this launchpad thread fully expaned with mouse wheel. >> >> In both cases I've recorded CPU utilization, 10 top recordings every 5 >> seconds each of the two processes. Command line: >> >> top -b -n 10 -d 5 -p $(pidof firefox),$(pidof X) >> >> I'm attaching the two top logs. Two noteworthy things to point out: >> >> 1) CPU fully saturated (constantly 100%) when scrolling in gmail! >> 2) Process responsible for this is Xorg! >> >> See the attached logs. One important thing: I'm using nouveau now in >> Jaunty. Later I'll redo the recordings with nv and possibily NVIDIA closed >> drivers. I don't think it is a matter of driver though, I've opened this >> slowness bug when I was using Intrepid with nv and the situation was the >> same. >> >> Now, next step could be to profile the driver and see where the time is >> spent. Anyone willing to dive into this with me? I'm willing to profile this >> workload, if someone can guide me. >> >> 2009/5/1 phinn <phinn...@gmail.com> >> >> Because it's not entirely an Nvidia bug either. My IBM T60 laptop draws >>> Firefox pages perfectly smooth with crappy ATI X1400 card compared to my >>> high end PC, its ridiculous. However, If you try Opera or Webkit based >>> browsers in Linux this problem does not occur. It is only between >>> Firefox + Nvidia. >>> >>> Yea, there should be some kind of bug report filled with Nvidia for sure >>> though. As both Firefox and them are to blame. >>> >>> -- >>> Slow performance with Gmail >>> https://bugs.launchpad.net/bugs/217580 >>> You received this bug notification because you are a direct subscriber >>> of the bug. >>> >>> Status in XUL + XPCOM application runner: Confirmed >>> Status in “firefox-3.0” source package in Ubuntu: Invalid >>> Status in “xulrunner-1.9” source package in Ubuntu: Fix Committed >>> >>> Bug description: >>> Binary package hint: firefox-3.0 >>> >>> When scrolling in Gmail (and other websites however its not as noticable) >>> the scrolling performance is terrible. There is a slight lag from when it >>> starts to scroll to when it actually does scroll. On my Windows XP machine >>> it is MUCH faster (basically instant). This is present with both Compiz >>> enabled and disabled. >>> >>> ProblemType: Bug >>> Architecture: i386 >>> Date: Tue Apr 15 01:01:46 2008 >>> DistroRelease: Ubuntu 8.04 >>> NonfreeKernelModules: nvidia >>> Package: firefox-3.0 3.0~b5+nobinonly-0ubuntu1 >>> PackageArchitecture: i386 >>> ProcEnviron: >>> >>> >>> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games >>> LANG=en_US.UTF-8 >>> SHELL=/bin/bash >>> SourcePackage: firefox-3.0 >>> Uname: Linux 2.6.24-16-generic i686 >>> >> >> > ** Attachment added: "top-firefox-scrolling.log" http://launchpadlibrarian.net/26246791/top-firefox-scrolling.log -- Slow performance with Gmail https://bugs.launchpad.net/bugs/217580 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs