[Dovecot] any limitations running on a Mac?
steeeeeveee at gmx.net
Sun Feb 28 14:32:34 EET 2010
-------- Original-Nachricht --------
> Datum: Sun, 28 Feb 2010 11:09:20 +0000
> Von: Ed W <lists at wildgooses.com>
> An: dovecot at dovecot.org
> Betreff: Re: [Dovecot] any limitations running on a Mac?
> On 27/02/2010 10:08, Stan Hoeppner wrote:
> > Terry Barnum put forth on 2/26/2010 4:20 PM:
> >> The 500MB+, 5k+ message problem is with another mailserver not running
> postfix/dovecot. It's the reason I've started investigating postfix with
> your software and so far I"m very happy.
> > Hi Terry,
> > If it is remotely a possibility, I'd recommend going with Linux instead
> > OSX. Going Linux gets you access to the XFS filesystem which gives the
> > overall performance for maildirs. It seems very likely that your
> > production server is suffering at 5K files and 500MB mailboxen due to a
> > deficient filesystem, among other things. I'm partial to Debian Stable
> > (Lenny) myself. I use mbox with XFS due to the fact I archive all my
> > mail and thus generate some pretty large mbox files, growing every day.
> > I decide to switch to or add maildirs later, I've already got the
> > that performs best for both worlds.
> XFS offers some nice features such as resize of partitions and
I use XFS now over a decade but have never seen direct snapshot support in XFS. What version of XFS offers snapshot support?
> however, it appears to sometimes need some tuning for small
> file write applications? (adjust log buffers I think?). (Some people
> have also suffered dataloss in the event of sudden powerloss - bad
> interactions with the writeback cache.. Obviously likely with any
> filesystem though)
> You might also want to benchmark Ext4 since it's apparently now
> considered stable and easy to migrate from ext3. Google apparently are
> migrating internally from ext2 to ext4 having benchmarked it to be
> similar speed to XFS (for *their* workloads!)
> Ed W
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