From owner-freebsd-questions@FreeBSD.ORG Sat Jun 14 22:03:45 2008 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9C9C21065671 for ; Sat, 14 Jun 2008 22:03:45 +0000 (UTC) (envelope-from fbsd06+W4=8ff14f2c@mlists.homeunix.com) Received: from fallback-in1.mxes.net (fallback-out1.mxes.net [216.86.168.190]) by mx1.freebsd.org (Postfix) with ESMTP id 722E48FC1D for ; Sat, 14 Jun 2008 22:03:45 +0000 (UTC) (envelope-from fbsd06+W4=8ff14f2c@mlists.homeunix.com) Received: from mxout-03.mxes.net (mxout-03.mxes.net [216.86.168.178]) by fallback-in1.mxes.net (Postfix) with ESMTP id E6C8A163DFF for ; Sat, 14 Jun 2008 17:47:46 -0400 (EDT) Received: from gumby.homeunix.com. (unknown [87.81.140.128]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.mxes.net (Postfix) with ESMTP id 2468523E4AF for ; Sat, 14 Jun 2008 17:47:44 -0400 (EDT) Date: Sat, 14 Jun 2008 22:47:42 +0100 From: RW To: questions@freebsd.org Message-ID: <20080614224742.17316919@gumby.homeunix.com.> X-Mailer: Claws Mail 3.4.0 (GTK+ 2.12.10; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Subject: md devices mounted with async 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: Sat, 14 Jun 2008 22:03:45 -0000 mdmfs(8) has an example of a malloc-backed md device mounted with the async option. Is there any point in doing this with malloc and vnode devices? In neither case does a write to the file-system require a write to a physical disk.