Re: [Dovecot] Slow caching

On Tue, 2006-05-30 at 15:53 +0100, John Rowe wrote:

I have just installed dovecot on a RedHat Enterprise 4 clone with exim MTA, procmail LDA and mbox format. I'm getting complaints of slow caching from a Mac user:

    I think there's still something very sick with [host]'s IMAP 
    server: it just took a full five minutes to cache an attachment
    (350kb) 
    in an email from [person]. In that time, I couldn't do anything
    else with 
    mail; it was essentially locked.

That could mean pretty much anything. Probably the best way to debug this would be to see what actually happens in the process. After the user has logged in, run:

strace -tt -p pid-of-the-imap-process 2>log

If it shows that most of the time is spent in poll(), then it means the problem is in client side, network or something else anyway than Dovecot. And I suspect this is the case. :)