From owner-freebsd-questions Sat Nov 3 18:23:33 2001 Delivered-To: freebsd-questions@freebsd.org Received: from www.digitalspy.co.uk (np-dsl-216-12-209-2.ev1.net [216.12.209.2]) by hub.freebsd.org (Postfix) with ESMTP id 0893237B405 for ; Sat, 3 Nov 2001 18:23:28 -0800 (PST) Received: from localhost (mh_lists@localhost) by www.digitalspy.co.uk (8.10.2/8.10.2) with ESMTP id fA42NJi06921; Sun, 4 Nov 2001 02:23:19 GMT Date: Sun, 4 Nov 2001 02:23:19 +0000 (GMT) From: Mark Hughes To: "Gary W. Swearingen" Cc: Mark Hughes , Subject: Re: Swap space with 3GB RAM In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 3 Nov 2001, Gary W. Swearingen wrote: > "Mark Hughes" writes: > > Personally I'd agree that from a performance point of view we may be better > > off without swap at all - however the reason for having the swap even when > > you don't need it is, I think, so you can do some sort of memory dump to > > the swap if you have problems. > > You'll want to read the dumpon(8) man page to enable the feature (which > seems to require swap >= RAM size + 64 KB). And learn kernel debugging. :-) Yup, that sounds about right. Where man tuning says that it's faster to run with 2xRAM as Swap because certain things are tuned to that size, if you are not going to be using the swap that you allocate, is it worth doubling it? As i've said, hard drive space isn't a consideration, but if it's absolutely totally pointless having it double the size of the RAM, then I'm sure /var/tmp would be glad of the extra space (or some other such place). Thanks, Mark To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message