[Dovecot] dovecot performance

Jose Celestino
Thu, 14 Aug 2008 19:37:46 -0000

Words by Giorgenes Gelatti [Thu, Aug 14, 2008 at 03:38:50PM
-0300]:
> Hello All,
>
> I've been studying dovecot for replacing my company's current
system
> and I got a little worried about an aspect of the dovecot's design.
> I was surprised that dovecot doesn't use prefork for its mail
> processes, forking a new processes for each new client connection.
>
> Talking in the #dovecot channel I was gave a scenario of a system
> supporting ~40k users with 4 servers just fine.
> I wonder how well dovecot would scale if we increase this number of
> users by some order of magnitude like, say, 4M users.
>

Well, we have 8 servers for that amount of users.

> It is well known that preforking is a good pratice if you want to
> achieve a higher performance.

Some say it's premature optimization.

> When I was asked about it I readily answered: "of course it
does". For
> my surprise later, i doesn't.
>
> Do you have any plans to support preforking in the near future?
>

--
Jose Celestino | http://japc.uncovering.org/files/japc-pgpkey.asc
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