From owner-freebsd-questions@FreeBSD.ORG Fri Feb 8 15:43:11 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 46BFA16A419 for ; Fri, 8 Feb 2008 15:43:11 +0000 (UTC) (envelope-from jerrymc@gizmo.acns.msu.edu) Received: from gizmo.acns.msu.edu (gizmo.acns.msu.edu [35.8.1.43]) by mx1.freebsd.org (Postfix) with ESMTP id 0736113C45E for ; Fri, 8 Feb 2008 15:43:10 +0000 (UTC) (envelope-from jerrymc@gizmo.acns.msu.edu) Received: from gizmo.acns.msu.edu (localhost [127.0.0.1]) by gizmo.acns.msu.edu (8.13.6/8.13.6) with ESMTP id m18Fdgno035418; Fri, 8 Feb 2008 10:39:42 -0500 (EST) (envelope-from jerrymc@gizmo.acns.msu.edu) Received: (from jerrymc@localhost) by gizmo.acns.msu.edu (8.13.6/8.13.6/Submit) id m18Fdf0l035417; Fri, 8 Feb 2008 10:39:41 -0500 (EST) (envelope-from jerrymc) Date: Fri, 8 Feb 2008 10:39:41 -0500 From: Jerry McAllister To: "Jason C. Wells" Message-ID: <20080208153941.GB35348@gizmo.acns.msu.edu> References: <50460.33951.qm@web34512.mail.mud.yahoo.com> <20080207151415.06393db1@meijome.net> <47AAA5F0.4090803@highperformance.net> <200802070818.45400.wundram@beenic.net> <47AB9DA9.8080006@highperformance.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47AB9DA9.8080006@highperformance.net> User-Agent: Mutt/1.4.2.2i Cc: freebsd-questions@freebsd.org Subject: Re: Some ideas for FreeBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Feb 2008 15:43:11 -0000 On Thu, Feb 07, 2008 at 04:09:13PM -0800, Jason C. Wells wrote: > Heiko Wundram (Beenic) wrote: > >Am Donnerstag, 7. Februar 2008 07:32:16 schrieb Jason C. Wells: > >>Norberto Meijome wrote: > >>>But I agree with Wojciech..do you really want to use swap files? > >>One could mount an md filesystem and then use that as swap. That way > >>you wouldn't need to use any disc space. As a plus, the performance > >>would be way better than disc. > > > >Ahem, sorry, that's just plain stupid. Either the md system is backed up > >by RAM (in which case you don't need the swap anyway; why'd you want to > >access RAM by putting it in a swap on an md in RAM?), or it's backed up by > >swap, in which case you have a chicken and egg problem. > > Mmm, yes. That is quite a pickle. But a chicken or an egg would still > be inferior to an md backed swap. :) Huh? md backed swap is just using memory which, if you hadn't wasted it by making it md, it might obviate the need for swap at all - anyway it would not be a faster system if the md had to be swapped out. It just adds another layer of interferrence. ////jerry > > Regards, > Jason > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"