[imp] Speed Issues with IMP and high volume messages

[Dave Breiland]

I'd have to agree that this problem really does sound like an IMAP issue.
Its amazing how much of a difference it can make.

The duplex mis-match isn't a bad thought either.  Also, make sure all the
DNS are setup right as it could be delaying on a reverse lookup or some
such thing.

Please keep us posted on your progress!

Good luck!

Dave

On Thu, 3 Jul 2003, Alexander Marx wrote:

> Iain Collins wrote:
> [...]
> > - For another user, with around 3,000 messages (also with an average size of
> > around 2K per message), the time between clicking 'Login' and being greeted
> > win a message list is 4 minutes). Getting message headers should take just a
> > few seconds (and indeed it does, with other IMAP clients).
> >
> > The same slowness is oddly also present when clicking 'log off'.
> hm ..  sounds to me very much like a network related
> issue .. especially halfduplex/fullduplex issues ..
>
> could you try and test you network-connection between the imap-server
> and a webmailer? (e.g. with scp'ing a large file between them) is it
> reasonably fast? are there interface errors on the webmailers?
>
> i've just verified that on my install (courier/apache2/imp 3.2.1) here
> the login takes ~2 secs  (~700 mails in the inbox) ... and a folder
> with >9000 mails (~30MB), takes exactly 4 seconds to view
>
> the whole mailbox currently has 805MB and 173528 mails in it,
> i know thats is probably an extreme case, but it really shows how
> efficient the imp/courier combo really is ...
>
> alex.
>
>
>
>
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