From owner-freebsd-stable@FreeBSD.ORG Fri Jun 17 15:03:00 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 BCBE016A428; Fri, 17 Jun 2005 15:03:00 +0000 (GMT) (envelope-from steve@lonres.com) Received: from anchor-post-30.mail.demon.net (anchor-post-30.mail.demon.net [194.217.242.88]) by mx1.FreeBSD.org (Postfix) with ESMTP id 78D4243D4C; Fri, 17 Jun 2005 15:03:00 +0000 (GMT) (envelope-from steve@lonres.com) Received: from mail.lonres.com ([194.70.153.187]) by anchor-post-30.mail.demon.net with esmtp (Exim 4.42) id 1DjIMy-000M9a-2C; Fri, 17 Jun 2005 15:02:57 +0000 Received: from bibipentium.lonres.com (bibipentium.lonres.com [10.10.10.225]) by mail.lonres.com (Postfix) with SMTP id 870832E09F; Fri, 17 Jun 2005 16:02:56 +0100 (BST) Received: by bibipentium.lonres.com (sSMTP sendmail emulation); Fri, 17 Jun 2005 16:03:04 +0100 Date: Fri, 17 Jun 2005 16:03:04 +0100 From: Steve Roome To: David Sze Message-ID: <20050617150304.GE34777@bibipentium.lonres.com> References: <746fd037f6ca8131a8fb8938f1e346e9@lonres.com> <20050610170537.GA67849@bibipentium.lonres.com> <20050611085604.J75625@fledge.watson.org> <20050616161506.GB28794@bibipentium.lonres.com> <6.2.1.2.2.20050617091736.05949298@mail.distrust.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6.2.1.2.2.20050617091736.05949298@mail.distrust.net> User-Agent: Mutt/1.4.2.1i X-Mailman-Approved-At: Sat, 18 Jun 2005 13:10:58 +0000 Cc: freebsd-stable@freebsd.org, Guy Helmer , Kris Kennaway , Greg 'groggy' Lehey , Robert Watson 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 15:03:00 -0000 I've posted a longer reply, with a trimmed cc list on the -performance mailing list if anyone is still interested and I'll leave it off -stable as it's probably become somewhat off topic now. Sadly, I don't think simply having an async FS is going to solve our problem though. :( Ta, Steve Roome For refernce: On Fri, Jun 17, 2005 at 09:28:54AM -0400, David Sze wrote: > At 05:15 PM 16/06/2005 +0100, Steve Roome wrote this to All: > It turns out that the problem was the same thing everyone usually points > the finger at, but no one actually mentioned this time: Linux mounts its > partitions async by default. I don't have the exact numbers in front of me > right now, but these were the ballpark figures (I'm not going to separate > out results for all of the different threading libraries for FreeBSD > because the deltas weren't huge): ...