From owner-freebsd-current Tue Oct 29 00:37:39 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id AAA07343 for current-outgoing; Tue, 29 Oct 1996 00:37:39 -0800 (PST) Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [198.145.92.241]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id AAA07334; Tue, 29 Oct 1996 00:37:33 -0800 (PST) Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.7.5/8.7.3) id AAA01517; Tue, 29 Oct 1996 00:37:29 -0800 (PST) From: "Rodney W. Grimes" Message-Id: <199610290837.AAA01517@GndRsh.aac.dev.com> Subject: Re: Request to add this to FAQ re: swap space In-Reply-To: <199610290815.DAA02962@dyson.iquest.net> from "John S. Dyson" at "Oct 29, 96 03:15:15 am" To: dyson@FreeBSD.org Date: Tue, 29 Oct 1996 00:37:29 -0800 (PST) Cc: dyson@FreeBSD.org, current@FreeBSD.org X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk > > > > > as usual, add some space in for expansion and for process growth. > > > > Thats what ``swapon'' is for :-) :-) :-) :-) > > > So are you going to add the code to properly support swapon for files? :-). I thought this was long ago working, what happened? > I think that 2.2 is going to be frozen soon, and the risk/reward might be > excessive to do it. VN devices exact a significant performance hit. In > fact, the swapon for files will also. ``swaping/paging'' imposes enough of a performance hit that my methodology already takes care of that, just don't swap more than you have memory, I rarely wait for my swap space usage to hit 50% before I toss more memory in a box. Of cource, the boarder cases already talked about are an exception to this condition (can't put enough physical RAM in most machines for them to be at 1 x RAM swapsize). -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation, Inc. Reliable computers for FreeBSD