[Mimedefang] Server load

[Brad Dameron]

Are you using the split queue's in your mqueue directory? I noticed this can
speed it up as another bottleneck is getting too many files per directoy.

---
Brad Dameron									Network Account Executive
TSCNet Inc.								         	www.tscnet.com
Silverdale, WA.									1-888-8TSCNET



> -----Original Message-----
> From: mimedefang-admin at lists.roaringpenguin.com
> [mailto:mimedefang-admin at lists.roaringpenguin.com]On Behalf Of Tom Horan
> Sent: Friday, October 11, 2002 2:36 AM
> To: 'mimedefang at lists.roaringpenguin.com'
> Subject: RE: [Mimedefang] Server load
>
>
> For my /var/spool/mqueue and /var/spool/MIMEDefang filesystems, I
> have them
> on 3*36GB SCSI3 RAID5, hanging on a Compaq Array 5400, running reiserfs on
> top of these with notail, and noatime.
>
> Anyone suggest any improvements for this ?
>
>
>
> -----Original Message-----
> From: Edward Wildgoose [mailto:Edward.Wildgoose at frmhedge.com]
> Sent: 11 October 2002 08:54
> To: mimedefang at lists.roaringpenguin.com
> Subject: RE: [Mimedefang] Server load
>
>
> Or if you are on a budget then get a 2 port 3ware IDE card.  Only
> about £80
> (UK Sterling) and should give a large fraction of the performance
> of a SCSI
> disk at high loads (write re-ordering, etc)
>
> However, I agree a decent SCSI controller with battery backed write cache
> can give 10 times or more speedup on apps like SQL Server and presumably
> "log/spool" writes on an email server.
>
> There is of course a lot that can be done with tuning file systems which
> will give a massive speed increase at high loads (journaling fs, etc)
>
> Ed W
>
> -----Original Message-----
> From: Young, Gil [mailto:Gil_Young at crc.com]
> Sent: 11 October 2002 00:19
> To: 'mimedefang at lists.roaringpenguin.com'
> Subject: RE: [Mimedefang] Server load
>
>
> Not sure of all your particulars/budget/politics and i'm sure you already
> know this, but why not go with 2X36 gig SCSI-RAID-0 for the
> drives?  It will
> give you much better performance than a single IDE drive,
> especially with so
> many read/writes like it looks like you will be doing, or if you dont need
> 72 gig of space, just mirror the two 36'ers for redundancy.
>
> Sweet machine, BTW.  A few engineers at my work place went from Dual P-III
> 933's with IDE to dual P4 XEON-2.0's with U160 SCSI-RAID and it was night
> and day.  A moderate inhouse number crunching app on the old
> system took 96
> seconds to run, on the new system it ran in somewhere between 6 and 7
> seconds.
>
> Best wishes,
> Gil
>
> -----Original Message-----
> From: Brad Dameron [mailto:bdameron at tscnet.com]
> Sent: Thursday, October 10, 2002 6:27 PM
> To: mimedefang at lists.roaringpenguin.com
> Subject: RE: [Mimedefang] Server load
>
>
> Actually I do more than a million but didn't want to glorify anything.
>
> This is currently on a Dual PIII-866 machine with 1 gig of ram
> and Ultra DMA
> ide drives. I currently run sendmail 8.11.6 with AVP and a sendmail direct
> patch (http://home.i.cz/reho//check_virus/) for virus scanning. I
> stop some
> 25,000+ viruses a day. I am not doing the spam checking on this
> machine but
> on another mail server. I'll explain my configuration.
>
> I have a mailgateway machine that just does relaying of incoming and
> outgoing email for virus checking. This is the dual PIII with sendmail
> 8.11.6. Then I have 2 qmail machines which handle my dialup/dsl customers
> email, roughly 10,000 users and another machine which handles
> 1000+ virtual
> domain emails. All machines are the same speed. We then filter
> spam on those
> machines for now. However we are moving the spam filtering to our new
> machine.
>
> New machine configuration is as follows:
>
> Dual Athlon MP 1800+
> 1.5 gig ram
> 80 gig Western Digital Ultra 100 drive with 8mb cache (wd800jb).
> sendmail 8.12.6
>
> Will be using the avpdaemon and using our own spam filtering. We actually
> helped the author of spamassassin initially and then moved on to our own
> filtering because of some things we didn't agree on.
>
> I tried testing with the kavkeeper which is the AVP sendmail
> program and man
> did it die. It couldn't handle the amount of incoming email. So I
> am hoping
> mimedefang can. Atleast you use a daemon to where the kavkeeper
> looks to be
> just the kavscanner so it launches a 700k program for every email.
>
> Give me a few days. I'll let you know how it runs.
>
> ---
> Brad Dameron
> Network Account Executive
> TSCNet Inc.
> www.tscnet.com
> Silverdale, WA.
> 1-888-8TSCNET
>
>
>
> > -----Original Message-----
> > From: mimedefang-admin at lists.roaringpenguin.com
> > [mailto:mimedefang-admin at lists.roaringpenguin.com]On Behalf Of David F.
> > Skoll
> > Sent: Thursday, October 10, 2002 1:27 PM
> > To: mimedefang at lists.roaringpenguin.com
> > Subject: RE: [Mimedefang] Server load
> >
> >
> > On Thu, 10 Oct 2002, Brad Dameron wrote:
> >
> > > I'll get some statistics on performance for you. I currently
> do about a
> > > million messages a day through my smtp server and am just now
> > converting to
> > > the mimedefang. Will have it in full effect in a day or so and
> > will let you
> > > know how it perform's.
> >
> > Woah... what kind of machine is it?  A million messages/day is a lot.
> > If you're running SpamAssassin, I think you will have load problems.
> > I know of two other organizations with this level of mail (1 - 1.5
> > million/day) and they both use a handful of load-balanced servers.
> >
> > --
> > David.
> >
> > _______________________________________________
> > MIMEDefang mailing list
> > MIMEDefang at lists.roaringpenguin.com
> > http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
> >
>
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