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[Launchpad Bug Tracker <1061792@xxxxxxxxxxxxxxxxxx>]

[Expired for Unity because there has been no activity for 60 days.]

** Changed in: unity
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1061792

Title:
  Memory Leak in Unity (Compiz)

Status in Unity:
  Expired
Status in unity package in Ubuntu:
  Expired

Bug description:
  There seems to be a memory leak in Unity that comes with use (not
  age).

  Hardware: ThinkPad W510 (nVidia Quadro FX 880M, driver 304.51), Core2
  -Duo-based desktop with nVidia 560Ti (same driver)

  Software: Quantal Beta, up-to-the-moment updates, both 64- and 32-bit
  (one of each).

  *Note: I can *not* test with nouveau.  Not only is it completely
  unsuitable for laptops due to terrible power management, but neither
  computer will boot with it - I get the PFIFO stuff, even though the
  -16 kernel was supposed to fix that.

  Steps to reproduce:

  1) Log into Unity and launch System Monitor (gnome-system-monitor).
  Set to view "all processes" and organize by the "memory" column.  Take
  note of the amount of RAM taken by the Compiz and Xorg processes.

  2) Open a bunch of programs.  I use: Nautilus, Gnome-Terminal, Chrome,
  Banshee, EasyTag, EasyMP3Gain, Empathy, Eclipse, and Rhythmbox.

  3) Close all of the programs except gnome-system-monitor.  Note the
  increase in RAM the Compiz and Xorg processes take.

  4) Repeat steps 3-4.  Memory on each process steadily rises.

  It isn't by a lot, but it creates an environment wherein the longer
  one uses one's Unity session, the less free RAM one has to work with
  (as neither process ever seems to give up any of its RAM, ever, not
  even after 10 hours of use).

  I don't seem to have any stability or performance issues stemming from
  this.

  ALSO: Opening the dash at all raises the RAM usage by a LOT, and
  subsequent openings of the dash (poking around, clicking on new
  buttons that reveal icons I haven't seen before, etc) also grows the
  process's RAM.  By a LOT on the first run, but by a noticeable amount
  on later runs.

  *I* think this is a pretty high-priority issue, but as the RAM use and
  growth isn't all THAT large (~0.5/1 MiB every time steps 2-3 are
  repeated), I could understand if it weren't marked critical... but I
  think any leak is critical, so there's my bias.

  STEALTH EDIT: I want to point out that just leaving the system logged
  in does not cause Unity *or* Xorg to use more RAM over time.  Not even
  with the indicator-multiload running.

  STEALTH EDIT #2: All lenses and scopes except the Application lens have been uninstalled, and do not factor into this.  So I'm pretty sure we don't have a runaway call in any indexer or anything like it.
  --- 
  ApportVersion: 2.6.1-0ubuntu1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  DistroRelease: Ubuntu 12.10
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20120926)
  NonfreeKernelModules: nvidia
  Package: unity 6.8.0-0ubuntu1
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.5.0-17.26-generic 3.5.5
  Tags: quantal third-party-packages
  Uname: Linux 3.5.0-17-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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