The same bug exists on Nemo (should there be different bug report?) It is less troublesome when you don't set Nemo as handling also your desktop, because closing Nemo correctly frees the memory.
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty $ uname -a Linux alain-Desktop 3.13.0-33-generic #58-Ubuntu SMP Tue Jul 29 16:45:05 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ dpkg -s nemo Package: nemo Status: install ok installed Priority: optional Section: misc Installed-Size: 2096 Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Architecture: amd64 Version: 1.8.4-1.1 Depends: desktop-file-utils (>= 0.7), gsettings-desktop-schemas, gvfs (>= 1.3.2), libglib2.0-data, nemo-data (= 1.8.4-1.1), shared-mime-info (>= 0.50), libatk1.0-0 (>= 1.32.0), libc6 (>= 2.14), libcairo-gobject2 (>= 1.10.0), libcairo2 (>= 1.10.0), libexempi3 (>= 2.2.0), libexif12, libgail-3-0 (>= 3.0.0), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.37.3), libgnome-desktop-3-7 (>= 3.2.0), libgtk-3-0 (>= 3.3.18), libnemo-extension1 (>= 1.1.2), libnotify4 (>= 0.7.0), libpango-1.0-0 (>= 1.20.0), libpangocairo-1.0-0 (>= 1.14.0), libx11-6, libxml2 (>= 2.7.4) Recommends: eject, gvfs-backends, librsvg2-common, nemo-fileroller Suggests: eog, evince | pdf-viewer, totem | mp3-decoder, xdg-user-dirs Conffiles: /etc/xdg/autostart/nemo-autostart.desktop 01d1d8b6dbcb93ff99e0ad13004bd209 Description: File manager and graphical shell for Cinnamon Nemo is the official file manager for the Cinnamon desktop. It allows to browse directories, preview files and launch applications associated with them. It is also responsible for handling the icons on the Cinnamon desktop. It works on local and remote filesystems. . Several icon themes and components for viewing different kinds of files are available in separate packages. Original-Maintainer: Nicolas Bourdaud <nicolas.bourd...@gmail.com> Homepage: http://www.github.com/linuxmint/nemo/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1341292 Title: nautilus don't liberate the memory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1341292/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs