From owner-freebsd-stable@FreeBSD.ORG Sat Jun 18 21:38:37 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BEC3816A41C; Sat, 18 Jun 2005 21:38:37 +0000 (GMT) (envelope-from mkb@mkbuelow.net) Received: from luzifer.incubus.de (incubus.de [80.237.207.83]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7E13F43D4C; Sat, 18 Jun 2005 21:38:37 +0000 (GMT) (envelope-from mkb@mkbuelow.net) Received: from drjekyll.mkbuelow.net (p54AACB7C.dip.t-dialin.net [84.170.203.124]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by luzifer.incubus.de (Postfix) with ESMTP id 1C8332E9AC; Sat, 18 Jun 2005 23:41:28 +0200 (CEST) Received: from drjekyll.mkbuelow.net (mkb@localhost.mkbuelow.net [127.0.0.1]) by drjekyll.mkbuelow.net (8.13.3/8.13.3) with ESMTP id j5ILcpgF002301; Sat, 18 Jun 2005 23:38:51 +0200 (CEST) (envelope-from mkb@drjekyll.mkbuelow.net) Message-Id: <200506182138.j5ILcpgF002301@drjekyll.mkbuelow.net> From: Matthias Buelow To: lefty@asda.gr In-Reply-To: Message from Lefteris Tsintjelis of "Sat, 18 Jun 2005 23:19:28 +0300." <42B481D0.EFA31599@ene.asda.gr> X-Mailer: MH-E 7.84; nmh 1.0.4; XEmacs 21.4 (patch 17) Date: Sat, 18 Jun 2005 23:38:51 +0200 Sender: mkb@mkbuelow.net Cc: freebsd-stable@freebsd.org, freebsd-questions@freebsd.org Subject: Re: Can't mount partitions with soft-updates enabled with async option X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Jun 2005 21:38:37 -0000 Lefteris Tsintjelis writes: >I am not sure if I do something wrong here or it is suppose to work that >way but the async option doesn't seem to work for partitions that have >soft-updates turned on. Can someone please clarify the difference and if >the speed difference (if any) is significant when using the async option >instead of the soft-updates for cases such as the /usr/obj or as a squid >data storage? Is async preferred over soft-updates when data loss is not >a big issue? With softupdates, everything is asynchronous so the option doesn't make sense. For improving squid filesystem performance, have you mounted the partition with noatime? That might make some difference. mkb.