It looks like Nautilus blows up to ridiculous amounts of RAM in conjunction with appmenu-gtk: Bug #788973 . This behaviour is known since Lucid: http://www.webupd8.org/2010/07/nautilus-memory-leak-fix- ubuntu-1004.html and https://answers.launchpad.net/ubuntu/+source/nautilus/+question/148866 .
I consider this as a very serious problem: Nautilus consumes currently 520MB RAM on my system (Precise, 64bit). Not every user has installed 8GB+ of RAM to satisfy the needs of Nautilus. Killing and re-opening Nautilus leads to 22MB, and 32MB when 3 windows of Nautilus are opened. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/952108 Title: [Precise] Nautilus: memory leak Status in Nautilus: Invalid Status in “nautilus” package in Ubuntu: Triaged Bug description: Hello, It's just to note that Nautilus has memory leaks with the latest version: with an uptime of 10 hours, Nautilus uses 420Mo. It's maybe interesting to know that: * I'm using a slideshow and not one single image as background. * I opened Nautilus in directories where big files were being downloaded (and Nautilus regularly refreshed their preview) * I made a few actions (like opening directories with a lot of files, moving files, creating directories, extracting tarball, etc.) * I'm using a few plugins like nautilus-dropbox, nautilus-image-converter, etc. * I've bookmarks with special characters like 'Vidéos' and 'Téléchargements'. I hope it will help you to fix this bug ;) ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: nautilus 1:3.3.91-0ubuntu4 ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9 Uname: Linux 3.2.0-18-generic x86_64 ApportVersion: 1.94.1-0ubuntu2 Architecture: amd64 Date: Sun Mar 11 10:35:32 2012 GsettingsChanges: org.gnome.nautilus.window-state geometry '800x552+483+87' org.gnome.nautilus.window-state start-with-status-bar true InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1) SourcePackage: nautilus UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/952108/+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

