From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932190AbWAYWkO (ORCPT ); Wed, 25 Jan 2006 17:40:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932194AbWAYWkO (ORCPT ); Wed, 25 Jan 2006 17:40:14 -0500 Received: from 41-052.adsl.zetnet.co.uk ([194.247.41.52]:47368 "EHLO mail.esperi.org.uk") by vger.kernel.org with ESMTP id S932190AbWAYWkM (ORCPT ); Wed, 25 Jan 2006 17:40:12 -0500 To: Diego Calleja Cc: Ram Gupta , mloftis@wgops.com, barryn@pobox.com, a1426z@gawab.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [RFC] VM: I have a dream... References: <200601212108.41269.a1426z@gawab.com> <986ed62e0601221155x6a57e353vf14db02cc219c09@mail.gmail.com> <728201270601230705k25e6890ejd716dbfc393208b8@mail.gmail.com> <20060123162624.5c5a1b94.diegocg@gmail.com> From: Nix X-Emacs: where editing text is like playing Paganini on a glass harmonica. Date: Wed, 25 Jan 2006 22:27:11 +0000 In-Reply-To: <20060123162624.5c5a1b94.diegocg@gmail.com> (Diego Calleja's message of "23 Jan 2006 15:27:21 -0000") Message-ID: <87zmlkq6yo.fsf@amaterasu.srvr.nix> User-Agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Corporate Culture, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 23 Jan 2006, Diego Calleja wrote: > El Mon, 23 Jan 2006 09:05:41 -0600, > Ram Gupta escribió: > >> Linux also supports multiple swap files . But these are more > > There're in fact a "dynamic swap" tool which apparently > does what mac os x do: http://dynswapd.sourceforge.net/ > > However, I doubt the approach is really useful. If you need that much > swap space, you're going well beyond the capabilities of the machine. Well, to some extent it depends on your access patterns. The backup program I use (`dar') is an enormous memory hog: it happily eats 5Gb on my main fileserver (an UltraSPARC, so compiling it 64-bit does away with address space sizing problems). That machine has only 512Mb RAM, so you'd expect the thing would be swapping to death; but the backup program's locality of reference is sufficiently good that it doesn't swap much at all (and that in one tight lump at the end). -- `Everyone has skeletons in the closet. The US has the skeletons driving living folks into the closet.' --- Rebecca Ore From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nix Subject: Re: [RFC] VM: I have a dream... Date: Wed, 25 Jan 2006 22:27:11 +0000 Message-ID: <87zmlkq6yo.fsf@amaterasu.srvr.nix> References: <200601212108.41269.a1426z@gawab.com> <986ed62e0601221155x6a57e353vf14db02cc219c09@mail.gmail.com> <728201270601230705k25e6890ejd716dbfc393208b8@mail.gmail.com> <20060123162624.5c5a1b94.diegocg@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Ram Gupta , mloftis@wgops.com, barryn@pobox.com, a1426z@gawab.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Return-path: Received: from 41-052.adsl.zetnet.co.uk ([194.247.41.52]:47368 "EHLO mail.esperi.org.uk") by vger.kernel.org with ESMTP id S932190AbWAYWkM (ORCPT ); Wed, 25 Jan 2006 17:40:12 -0500 To: Diego Calleja In-Reply-To: <20060123162624.5c5a1b94.diegocg@gmail.com> (Diego Calleja's message of "23 Jan 2006 15:27:21 -0000") Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 23 Jan 2006, Diego Calleja wrote: > El Mon, 23 Jan 2006 09:05:41 -0600, > Ram Gupta escribi=F3: >=20 >> Linux also supports multiple swap files . But these are more >=20 > There're in fact a "dynamic swap" tool which apparently > does what mac os x do: http://dynswapd.sourceforge.net/ >=20 > However, I doubt the approach is really useful. If you need that much > swap space, you're going well beyond the capabilities of the machine. Well, to some extent it depends on your access patterns. The backup program I use (`dar') is an enormous memory hog: it happily eats 5Gb on my main fileserver (an UltraSPARC, so compiling it 64-bit does away wit= h address space sizing problems). That machine has only 512Mb RAM, so you'd expect the thing would be swapping to death; but the backup program's locality of reference is sufficiently good that it doesn't swap much at all (and that in one tight lump at the end). --=20 `Everyone has skeletons in the closet. The US has the skeletons driving living folks into the closet.' --- Rebecca Ore - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html