cyrus-imap - High consumption of memory

[Rob Mueller]

> I  have a problem with a high memory consumption using cyrus-imap 2.2 on 
> FreeBSD 7.0.
> Each processes of imapd consume 30mb of ram ! I believe that this is not 
> normal.
> Is there a way to adjust this?

This is probably fine.

cyrus mmap's lots of files, which often make the process look bigger that it 
really is, because the OS will just page in data as required.

Also a number of the mmaped files are shared between process (eg skiplist 
mailboxes.db), so if you have a 30M mailboxes.db, it'll make each process 
look like it's at least 30M in size, but in reality, that 30M is shared 
between all processes.

Rob