From owner-freebsd-stable@FreeBSD.ORG Fri Jun 17 22:09:38 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 583E516A41C for ; Fri, 17 Jun 2005 22:09:38 +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 17BF743D1F for ; Fri, 17 Jun 2005 22:09:38 +0000 (GMT) (envelope-from mkb@mkbuelow.net) Received: from drjekyll.mkbuelow.net (p54AAEB90.dip.t-dialin.net [84.170.235.144]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by luzifer.incubus.de (Postfix) with ESMTP id 79A572EFF0; Sat, 18 Jun 2005 00:12:25 +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 j5HM9jIb044087; Sat, 18 Jun 2005 00:09:46 +0200 (CEST) (envelope-from mkb@drjekyll.mkbuelow.net) Message-Id: <200506172209.j5HM9jIb044087@drjekyll.mkbuelow.net> From: Matthias Buelow To: Andreas Braukmann In-Reply-To: Message from Andreas Braukmann of "Fri, 17 Jun 2005 23:48:43 +0200." <2CC4313971530A4F1A908FF0@[192.168.225.210]> X-Mailer: MH-E 7.84; nmh 1.0.4; XEmacs 21.4 (patch 17) Date: Sat, 18 Jun 2005 00:09:45 +0200 Sender: mkb@mkbuelow.net Cc: freebsd-stable@freebsd.org, Greg Barniskis , uzi@bmby.com, Matthias Buelow Subject: Re: FreeBSD MySQL still WAY slower than Linux 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: Fri, 17 Jun 2005 22:09:38 -0000 Andreas Braukmann writes: >no. But I don't mount them "async", either. >The default "noasync" in combination with softupdates >on disks with disabled write caches is perfectly fine >with me. "Noasync" only makes sense in the absence of softupdates. With softupdates, metadata is written asynchronously (I mean, that's the whole point, or at least half of it.) Besides, I thought you were talking about synchronous mounts (i.e., synchronous metadata _and_ data writes, which for most uses are just impractical). mkb.