From owner-freebsd-hackers  Sat Mar 24 17:43: 9 2001
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Date: Sat, 24 Mar 2001 17:43:14 -0800
From: dannyman <dannyman@toldme.com>
To: Matt Dillon <dillon@earth.backplane.com>
Cc: "Michael C . Wu" <keichii@iteration.net>,
	Alfred Perlstein <bright@wintelcom.net>, grog@FreeBSD.ORG,
	fs@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject: Re: tuning a VERY heavily (30.0) loaded server
Message-ID: <20010324174314.B38361@dell.dannyland.org>
References: <20010320111144.A51924@peorth.iteration.net> <20010320092717.R29888@fw.wintelcom.net> <20010320113818.B52586@peorth.iteration.net> <200103201750.f2KHopk94248@earth.backplane.com>
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In-Reply-To: <200103201750.f2KHopk94248@earth.backplane.com>; from dillon@earth.backplane.com on Tue, Mar 20, 2001 at 09:50:51AM -0800
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On Tue, Mar 20, 2001 at 09:50:51AM -0800, Matt Dillon wrote:
>     One thing that comes to mind is that you can smarthost your outgoing
>     email to another host so the queues don't build up.  This should
>     greatly reduce mail load.  In fact, I would recommend offloading email
>     entirely if possible... email always hits disks hard.
> 
>     Definitely get rid of MFS.  MFS wastes 2x the memory allocated to it.
>     Use a softupdates-enabled filesystem in place of MFS, or use a 
>     swap-backed VN-based partition with softupdates enabled.
> 
>     Alfred's vmiodirenable suggestion is a good one.
[...]

This might make a tiny help: mount things -noatime?  If you are reading the
same files over and over and over again you needn't bother WRITEing an atime
...

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