Re: [Evolution] [Fwd: Re: Tunning for large number of files in INBOX]

[Jeffrey Stedfast <fejj novell com>]

On Tue, 2005-07-05 at 10:41 -0400, Patrick O'Callaghan wrote:
> I can't comment on Pine, but I find TBird's IMAP a lot faster than
> Evo's. Also more reliable (I've *never* had TBird hang on me). Given
> recent comments about rewriting the IMAP code, is no-one thinking of
> just adapting it from some other client (TBird, Pine, ...)? I mean,
> isn't that what free software is all about?

rarely can one *ever* adapt code from one project into another because
they use different abstractions, etc. Evolution also has features the
others do not.

When I rewrote IMAP for Evo last year (which only supported the small
subset of features the moz-mail, etc supported), it was blazingly fast
until I had to go and add back all the feature-bloat that users demanded
that had been included in previous versions of Evolution.

A huge slowness for Evo IMAP is the fact that it has to ask for
whole-headers in order to support vfoldering on mailing-lists,
attachment icons in the message-list, etc.

If you eliminate the need to FETCH BODY.PEEK[HEADER.FIELDS ...], and
instead can settle on just ENVELOPE, things are MUCH faster. 

Jeff

> poc
>
> On Tue, 2005-07-05 at 22:28 +0800, Murray Trainer wrote:
> > Hi All,
> >
> > I saw the comment about Evolution's IMAP performance in this recent
> > thread on the Cyrus list and thought it might be of interest here.
> >
> > Regards
> >
> > Murray
> >
> > -----Forwarded Message-----
> > From: Marco Colombo <marco esi it>
> > To: Andreas Hasenack <ahasenack terra com br>
> > Cc: info-cyrus lists andrew cmu edu
> > Subject: Re: Tunning for large number of files in INBOX
> > Date: Mon, 04 Jul 2005 15:54:16 +0200
> >
> > On Thu, 2005-06-30 at 13:22 -0300, Andreas Hasenack wrote:
> > > On Wed, Jun 29, 2005 at 02:56:58PM -0600, Michael Loftis wrote:
> > > > clients retrofitted to squak IMAP.  Get a real IMAP client like Mulberry 
> > > > that takes advantage of server side sorting, threading, and searching to 
> > > > allow for (nearly) limitless mailboxes but not download each and every 
> > > > header.
> > >
> > > Is there a "real IMAP client" which is free software?
> > > I have seen this "downloading *all* headers" behaviour with every free
> > > imap client I have tried.
> >
> > Not that I'm suggesting it, but pine doesn't show the "all headers"
> > behavior, and it's free. :-)
> >
> > Too bad they forgot that an imap folder can hold both messages and
> > subfolders, and they had to add a late hack to allow the correct
> > browsing of a Cyrus server. No client is perfect.
> >
> > Being an old-time user of Pine, it's always a pain to use Thunderbird or
> > Evolution, clients so feature-full but w/o decent imap behavior:
> > sometimes I have to switch back to Pine to be able to handle 50k+ new
> > messages per folder in a decent time (Pine takes negligible time to open
> > them).
> >
> > .TM.
> >
> > _______________________________________________
> > evolution maillist  -  evolution lists ximian com
> > http://lists.ximian.com/mailman/listinfo/evolution
>
> _______________________________________________
> evolution maillist  -  evolution lists ximian com
> http://lists.ximian.com/mailman/listinfo/evolution
-- 
Jeffrey Stedfast
Evolution Hacker - Novell, Inc.
fejj ximian com  - www.novell.com