Re: Evo overhead (was Re: [Evolution] Connector GPLed!!!)

[Not Zed <notzed ximian com>]

On Mon, 2004-05-17 at 12:46 -0500, Ron Johnson wrote:
> On Mon, 2004-05-17 at 09:41 -0400, Jeffrey Stedfast wrote:
> > On Mon, 2004-05-17 at 08:09, Ron Johnson wrote:
> > > On Mon, 2004-05-17 at 18:29 +0800, Not Zed wrote:
> > > > On Sun, 2004-05-16 at 22:13 -0500, Ron Johnson wrote:
> > > > > On Mon, 2004-05-17 at 10:25 +0800, Not Zed wrote:
> > > > > > On Fri, 2004-05-14 at 17:12 +0200, Tony Earnshaw wrote:  
> > > > > > > tir, 11.05.2004 kl. 18.03 skrev Jeffrey Stedfast:
> > > > > [snip]  
> > > > > > > more economical clients (Kmail for a start).
> > > > > > In what way?  Our only overhead is indexes and summary files which
> > > > > > are a tiny fraction of the actual message content.
> > > > > 
> > > > > Well, I wouldn't go so far as say "tiny".  20-30% is my experience
> > > > > with IMAP-stored email, 
> > > > > and 20-90% overhead on .evolution/mail/local email.
> > > > 90% overhead?
> > > > 
> > > > Huh.  Please explain.
> > > > 
> > > > I'm lucky to get 5% for local mail and much less than that for imap
> > > > email.
> > > > 
> > > > > I must say, though, that it seems better in 1.5 than it did in
> > > > > 1.[0-4].
> > > > This is rubbish.  The files have got bigger in 1.5, although by a
> > > > miniscule amount.  But they are definitely not smaller.
> > > 
> > > Since I don't store my mail locally, anymore, and use 1.5, I
> > > can't give you any proof on those scores, but I can tell you
> > > about Evo 1.5 and Courier-IMAP:
> > > 
> > > The IMAP data:
> > > 	$ du -s -h -k Maildir   
> > > 	153756  Maildir
> > > The Evo 1.5.7 cache:
> > > 	$ du -s -h -k .evolution/mail/imap/me haggis
> > > 	50304   .evolution/mail/imap/me haggis
> > > 
> > > 32.7% overhead
> > 
> > That's not all indexing overhead, that's mostly locally cached messages.
>
> Ah, ok.
>
> However, this statement is still false: "In what way?  Our only 
> overhead is indexes and summary files which are a tiny fraction of 
> the actual message content."

Oh don't be a pedant.  It is however, entirely accurate.  A tiny fraction of the _actual message content_.  The cache is _actual message content_, and the indices are the overhead.

If you're just using maildir on the local machine, just use maildir on hte local machine and don't use imap to get to it.

Michael Zucchi <notzed ximian com> Ximian Evolution and Free Software Developer

Novell, Inc.