[Dovecot] zlib plugin

Andrey Panin pazke at pazke.donpac.ru
Tue Oct 7 10:38:01 EEST 2008


On 279, 10 05, 2008 at 10:38:02PM +0300, Timo Sirainen wrote:
> On Sun, 2008-10-05 at 21:28 +0200, Luuk wrote:
> 
> > Last but not least, what gain will i have by using this plugin in 
> > combination with Maildir, or will it have more impact when mails are 
> > stored in mbox.
> 
> I guess it depends on the size of your mails. With mboxes it can be used
> only with read-only archives, so it's not all that useful. With maildir
> it can be used transparently with read-write mailboxes. I've no idea
> what the performance difference or space improvements are. I guess
> that'll also depend on your system.

I use zlib compressed maildirs on my primary server (12000+ users) and it 
achieves average compression ratio of 1.8, so if your system is io-bound
you can spend some cpu cycles to significantly decrease disk load.

-- 
Andrey Panin		| Linux and UNIX system administrator
pazke at donpac.ru		| PGP key: wwwkeys.pgp.net
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