This documentation is for Dovecot v2.x, see wiki1 for v1.x documentation.

Dovecot performance tuning

Disk I/O optimization

Usually heavily loaded IMAP and POP3 servers don't use much CPU, but they use all the disk I/O they can get. So reducing disk I/O is probably the most useful optimization you can do.

CPU usage optimization

Memory usage optimization

There aren't many settings which affect Dovecot's memory usage. In general Dovecot uses as much memory as it needs, which is usually quite little.

Note that these settings do not directly affect the memory usage:

PerformanceTuning (last edited 2017-04-30 07:52:39 by TimoSirainen)