[Dovecot] Dovecot 2.0.9: Thunderbird 3.1.9: Very slow while open sent folder with many (4k>) mails

Robert Schetterer robert at schetterer.org
Thu Mar 24 22:28:54 EET 2011

Am 24.03.2011 20:12, schrieb Robert Schetterer:
> Am 24.03.2011 17:51, schrieb Eric Shubert:
>> On 03/24/2011 09:35 AM, Denny Schierz wrote:
>>> hi,
>>> one customer told us, that he has performance problem in his Thunderbird
>>> 3.1.9, while open his sent folder, which has round about 4000 mails in
>>> it, and 20k in his Inbox. For example TB, tries to sync the sent-folder
>>> list (over SSL) from the sent folder for now over 15min.
>>> In the log, I can't see any strange things, so for me, Dovecot works ok.
>>> Maybe, I should use better cache options?
>>> Now he tries to move many messages to separate folders, but thats also a
>>> bit slow. So, is it a TB problem, with so many messages?
>>> Our config:
>> <snip>
>> Recent versions of TB (3.1.9 included) cache all messages locally (on
>> client computer) by default. This is fine for local connections, but on
>> remote connections with a lot of mail, it takes a while for all that to
>> download. Same thing for moving large amounts of messages around. Once
>> it's done though, performance shouldn't be too bad.
>> If the problem persists, I would have the customer change their account
>> settings in the Synchronization & Storage section to something more
>> appropriate to their situation.
> good tip, perhaps works, at my setup it didnt helped very much, but i
> didnt investigated time for debug cause setting up new server now its gone
 additional info , dont know if its interesting
just compared with my old courier server, behavior with lot of mails
over imap with same tb version over same network in same profile feels
much more slower then dovecot, anyway i would bet that tb is the main
problem here, but i dont think other wide spreaded clients behave better

Best Regards

MfG Robert Schetterer


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