(In reply to Wayne Mery (:wsmwk) from comment #9)
> Mike,
> 
> >2G is pretty nasty!
> can you reproduce high memory with max_cached_connections=5 *and* starting
> in safe mode?  see http://support.mozillamessaging.com/en-US/kb/safe-mode
> 
> how many imap accounts?
> and, did you by chance enable the hidden preference
> mail.check_all_imap_folders_for_new ?

Hi,
   I am now running thunderbird 14.0 and no longer have the problem - even with 
max-connections=5
I am using IMAP with one account with 514 folders and 614 filters
~/.thunderbird/mail/ImapMail/mail.connect.uwaterloo.ca$ find . -type f | grep 
"\.msf$" | wc
    514     921   26878
~/.thunderbird/mail/ImapMail/mail.connect.uwaterloo.ca$ grep "^name=" 
msgFilterRules.dat  | wc
    650    1142   12952

Here is my current memory usage - note that it is great!
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND          
15057 magore    20   0 1181m 159m  43m S    0  1.0   4:35.15 thunderbird

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to thunderbird in Ubuntu.
https://bugs.launchpad.net/bugs/701341

Title:
  Overloads RAM and the swap

Status in Mozilla Thunderbird Mail and News:
  Expired
Status in “thunderbird” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: thunderbird

  When I run Thunderbird it begins to overload the RAM, swap and the
  processor. This happened after upgrading 08/01/2011.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: thunderbird 3.1.7+build3+nobinonly-0ubuntu0.10.04.1
  ProcVersionSignature: Ubuntu 2.6.32-27.49-generic 2.6.32.26+drm33.12
  Uname: Linux 2.6.32-27-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Mon Jan 10 21:41:02 2011
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
  ProcEnviron:
   LANG=es_GT.utf8
   SHELL=/bin/bash
  SourcePackage: thunderbird

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