[Bug 927515] Re: Thunderbird stuck at 100% CPU

Fabio M. Panico 927515 at bugs.launchpad.net
Fri Aug 2 15:56:29 UTC 2013


I also experience a high CPU usage (generally around 70%, measured by
top), with:

- Thunderbir 17.0.7
- Ubuntu 13.04 32bit
on a ThinkPad T60 with Intel T2400 @ 1.83GHz × 2

I have several e-mail accounts on TB (total of 5, being 3 imap
gmail/yahoo and 2 private imap/pop).

I don't know if this is related to this bug.

BUT I've notice something very simple that sort of "solves" the issue
for me, apparently having to do to what is selected in the lateral
folder pane:

1. IF I leave the INBOX of any account selected (or actually any other
FOLDER), even though activity manager could show no recent activity for,
say, the last 10 minutes, I see a turning wheel on TB's e-mail tab and I
notice TB takes about 70% of CPU (measured by top). See attached
screenshot.

2. On the other hand, IF I select no INBOX/FOLDER but simply click on
one account (lateral pane - see attached screenshot), TB CPU usage drops
to <2%, coming up eventually to 20-30% of CPU for a few seconds, every
40 seconds or so, I believe when checking for new messages.

I'm only a user with no technical knowledge, but IMHO, it seems that TB
actually keeps constantly updating the messages/account if and
INBOX/internal FOLDER is selected, even when no activity is registered
by "activity manager". Could it be?

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Title:
  Thunderbird stuck at 100% CPU

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