From owner-freebsd-hackers@FreeBSD.ORG Sat Aug 2 14:32:41 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 444B737B405 for ; Sat, 2 Aug 2003 14:32:41 -0700 (PDT) Received: from mx01.netapp.com (mx01.netapp.com [198.95.226.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6B48E43FCB for ; Sat, 2 Aug 2003 14:32:40 -0700 (PDT) (envelope-from kmacy@netapp.com) Received: from frejya.corp.netapp.com (frejya [10.10.20.91]) h72LWdQw000132; Sat, 2 Aug 2003 14:32:40 -0700 (PDT) Received: from cranford-fe.eng.netapp.com (cranford-fe.eng.netapp.com [10.56.10.106])h72LWdRa018777; Sat, 2 Aug 2003 14:32:39 -0700 (PDT) Received: from localhost (kmacy@localhost)h72LWdW01719; Sat, 2 Aug 2003 14:32:39 -0700 (PDT) Date: Sat, 2 Aug 2003 14:32:39 -0700 (PDT) From: Kip Macy To: Shawn In-Reply-To: <1059859582.1532.4.camel@CPE-65-26-140-154.kc.rr.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-hackers@freebsd.org Subject: Re: Assembly Syscall Question X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Aug 2003 21:32:41 -0000 UVM was the VM system that replaced the old Mach style VM in NetBSD and (I believe) OpenBSD. FreeBSD has already cleaned up a lot of the problems that UVM addresses. However, there are still some things that could be done to make map passing easier, which I believe would make zero-copy support cleaner if not faster. This is the UVM home page: http://ccrc.wustl.edu/pub/chuck/tech/uvm/ -Kip