[Dovecot] 1.0(.14) vs 1.1.2 performance

Thomas Hummel hummel at pasteur.fr
Wed Aug 6 11:56:11 EEST 2008


On Tue, Aug 05, 2008 at 06:40:00PM -0400, Timo Sirainen wrote:

> Do you use POP3? 

Yes. I don't have the stats right now but I'd say, on 2500 users, 60% are using
IMAP, 40% POP3.

But I had the feeling that it was the IMAP processes which were causing the
load, particulary because some IMAP users were complaining about low speed
while moving messages from mailboxes (I'm talking 1.0.14 here). However, I
don't know if it was a cause or a consequence...

> That should work better.

A lot indeed.

> There are also less reads/ 
> writes to index files. And dovecot-uidlist is usually updated by  
> appending to it instead of rewriting it.

So no big architectural changes ? 
Or maybe changes in the locking code ?

What about the upcomming 2.0 ? Is the new master expected to provide load
improvement ?

Great work anyway ! ;-)

Thanks.

-- 
Thomas Hummel 	    | Institut Pasteur
<hummel at pasteur.fr> | Pôle informatique - systèmes et réseau


More information about the dovecot mailing list