On my original system where I found this bug, the behaviour was still consistent with Vimium.
However, I did recenty a fresh install of Lubuntu 13.10 and update to latest version of Chromium in the repos, and installed Vimium and on that machine (with a cheaper CPU) I do not have any high CPU usage there. My original system where I see this behaviour has been updated in place over the last 3 Ubuntu updates, so I suspected it could be indeed a problem with Chromium either of some libraries or more likely of home folder config settings from previous versions. To prove that, I renamed my ~/.config/chromium to ~/.config/-chromium in the problematic machine and started chromium with fresh settings (my ~/chache in tmpfs, so that is cleaned on everz shutdown). I installed Vimium and I browsed to several pages and I canot reproduce any more the behaviour. So in my case it seems Chromium has problems with older version settings or data in ~/.config/chromium. Removing that folder (backup it) solved the problem for me. I have to copy over my bookmarks from the older folder (lets hope the problem is not related to the number of bookmarks :) and take over manually the rest of the settings. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1261105 Title: chromium-browser 31.0.1650.63 high cpu on any page Status in “chromium-browser” package in Ubuntu: Invalid Bug description: Since last update of chromium-browser on Lubuntu 13.10 the CPU usage is very high with any open page: Version 31.0.1650.63 Ubuntu 13.10 (31.0.1650.63-0ubuntu0.13.10.1~20131204.1) Task Manager (lxde) Command User CPU% RSS VM-Size chro root 27% 222.0 MB 1.3 GB chromium-browser user 11% 72.1MB 16777216.0 TB Screenshot http://postimg.org/image/i8hiqwuc5/ http://s18.postimg.org/i8hiqwuc5/chromium.jpg It just goes higher and higher if you open any more pages, until the system does not respond anymore. My machine in I3 core 64 bit, so it is not about being slow - the previous version of chromium runs ok even on my eee pc. If it helps latest swiron build same version has same problem - I tested it on same machine. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: chromium-browser 31.0.1650.63-0ubuntu0.13.10.1~20131204.1 ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7 Uname: Linux 3.11.0-14-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 Date: Sun Dec 15 08:27:02 2013 Desktop-Session: DESKTOP_SESSION = Lubuntu XDG_CONFIG_DIRS = /etc/xdg/lubuntu:/etc/xdg:/etc/xdg/xdg-Lubuntu:/usr/share/upstart/xdg:/etc/xdg XDG_DATA_DIRS = /etc/xdg/lubuntu:/usr/local/share:/usr/share:/usr/share/gdm:/var/lib/menu-xdg:/etc/xdg/xdg-Lubuntu:/usr/share/upstart/xdg:/etc/xdg Env: MOZ_PLUGIN_PATH = None LD_LIBRARY_PATH = None InstallationDate: Installed on 2013-07-25 (142 days ago) InstallationMedia: Lubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MarkForUpload: True SourcePackage: chromium-browser UpgradeStatus: Upgraded to saucy on 2013-10-19 (56 days ago) chromium-default: CHROMIUM_FLAGS="--disk-cache-dir=/dev/null --disk-cache-size=1 --incognito -start-maximized" gconf-keys: /desktop/gnome/applications/browser/exec = b'firefox\n'/desktop/gnome/url-handlers/https/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/https/enabled = b'true\n'/desktop/gnome/url-handlers/http/command = b'sensible-browser %s\n'/desktop/gnome/url-handlers/http/enabled = b'true\n'/desktop/gnome/session/required_components/windowmanager = b''/apps/metacity/general/compositing_manager = b''/desktop/gnome/interface/icon_theme = b'gnome\n'/desktop/gnome/interface/gtk_theme = b'Clearlooks\n' modified.conffile..etc.chromium.browser.default: # Default settings for chromium-browser. This file is sourced by /bin/sh from # /usr/bin/chromium-browser # Options to pass to chromium-browser CHROMIUM_FLAGS="--disk-cache-dir=/dev/null --disk-cache-size=1 --incognito -start-maximized" mtime.conffile..etc.chromium.browser.default: 2013-07-25T19:54:26.584969 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1261105/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

