Timo Sirainen wrote:
> On Wed, 2009-09-30 at 11:48 -0400, Timo Sirainen wrote:
>> So it basically just issues NOOP commands and does no disk I/O (opens no
>> index files or anything). Looks like each imap process uses about 420 kB
>> of memory (420 MB total according to "free" before/after). That's
>> actually more than I thought. Wonder if I could decrease it..
>
> Actually imaptest was using about 50 MB and other Dovecot processes
> maybe 5-10 MB, so it was more like 360 kB per imap process. Slightly
> better but I think it could still lose 100-200 kB :)
>
On our live system we've got 1255 concurrent IMAP processes with an
average of 732KB private memory each (the rest of the memory should be
shared), but they're not (all) idle :)
(using Solaris 8 pmap command: "pgrep imap | xargs -i pmap -x {} | awk
'/^total/{tot+=$6;num++}END{print tot, num, tot/num}'")
Best Wishes,
Chris
--
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Christopher Wakelin, c.d.wake...@reading.ac.uk
IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094
