[Dovecot] Config review (2.0.5)

Ralf Hildebrandt Ralf.Hildebrandt at charite.de
Thu Oct 14 17:47:24 EEST 2010


* Timo Sirainen <tss at iki.fi>:


> > Process: No special process was peaking. How is the logging
> > implemented? Each imap process is logging by itself?
> 
> dovecot-lda logs directly,

OK!

> with everything else it goes through "dovecot/log" process.

Interesting: 1400+ processes logging through one process...
Has this changed from 1.2?

> Are you logging to syslog?

yes!

> Hmm. System CPU usage is about time spent in syscalls..

Exactly.

> Is it doing too many tiny write()s or something?

I was thinking of this as well, because the total amount of disk IO
didn't change (between 1.2 and 2.0) only the time spent in system...

> .. Maybe I should strace the processes and see if something's too slow
> there.

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de
	    


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