From owner-freebsd-arch@FreeBSD.ORG Sat Aug 23 02:09:25 2003 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FF1316A524 for ; Sat, 23 Aug 2003 02:09:24 -0700 (PDT) Received: from HAL9000.homeunix.com (12-233-57-131.client.attbi.com [12.233.57.131]) by mx1.FreeBSD.org (Postfix) with ESMTP id 202D944550 for ; Sat, 23 Aug 2003 01:08:50 -0700 (PDT) (envelope-from das@FreeBSD.ORG) Received: from HAL9000.homeunix.com (localhost [127.0.0.1]) by HAL9000.homeunix.com (8.12.9/8.12.9) with ESMTP id h7N88vtT008113; Sat, 23 Aug 2003 01:08:57 -0700 (PDT) (envelope-from das@FreeBSD.ORG) Received: (from das@localhost) by HAL9000.homeunix.com (8.12.9/8.12.9/Submit) id h7N88uDi008112; Sat, 23 Aug 2003 01:08:56 -0700 (PDT) (envelope-from das@FreeBSD.ORG) Date: Sat, 23 Aug 2003 01:08:56 -0700 From: David Schultz To: Nicolas Souchu Message-ID: <20030823080856.GA8081@HAL9000.homeunix.com> Mail-Followup-To: Nicolas Souchu , freebsd-arch@freebsd.org References: <20030816230358.B5747@armor.free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030816230358.B5747@armor.free.fr> cc: freebsd-arch@FreeBSD.ORG Subject: Re: Loadable VM pager X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Aug 2003 09:09:26 -0000 On Sat, Aug 16, 2003, Nicolas Souchu wrote: > I'm wondering if being able to load dynamically a pager in FreeBSD VM > would be worth and even possible with kobj. Of course that would > introduce some overhead to the page fault handling... Presently, the VM code has a number of special cases based on pager type, and this organization does not lend itself well to object-oriented techniques. At a minimum, those cases would have to be fixed, with consideration to the performance consequences. It's an interesting idea, nonetheless...