[Dovecot] Dovecot performance under high load (vs. Courier)

Reindl Harald h.reindl at thelounge.net
Thu Jun 21 23:54:23 EEST 2012

Am 21.06.2012 22:52, schrieb Timo Sirainen:
> On 21.6.2012, at 23.48, Reindl Harald wrote:
>>> Someone benchmarked Dovecot a while ago in this list with and without imapproxy and the results showed that imapproxy simply slowed things down by adding extra latency. This probably isn't true for all installations, but I don't think there's much of a difference either way.
>> depends on network-latency, parallel users and last but
>> not least count of folders - if you have 30 folders and
>> roundcube refreshs every 20 seconds it will make in the
>> worst case 180 connections for one user per minute
> Really? Doesn't it simply connect once every 20 seconds and send 30 STATUS requests in one connection?

not 100% sure

i simply tried it with proxy, was happy that it feels faster
and last but not least i have lesser entries in maillog which
goes to a central mysql-server for self-developed web-interfaces

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