From owner-freebsd-questions@FreeBSD.ORG Mon Nov 26 11:50:34 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3B79B16A41A for ; Mon, 26 Nov 2007 11:50:34 +0000 (UTC) (envelope-from Albert.Shih@obspm.fr) Received: from mesiob.obspm.fr (mesiob.obspm.fr [145.238.2.2]) by mx1.freebsd.org (Postfix) with ESMTP id CBDD213C455 for ; Mon, 26 Nov 2007 11:50:33 +0000 (UTC) (envelope-from Albert.Shih@obspm.fr) Received: from localhost (pcjas.obspm.fr [145.238.184.233]) by mesiob.obspm.fr (8.13.4/8.13.4/SIO Observatoire de Paris) with ESMTP id lAQBoM7W032562 for ; Mon, 26 Nov 2007 12:50:22 +0100 Date: Mon, 26 Nov 2007 12:50:22 +0100 From: Albert Shih To: freebsd-questions@freebsd.org Message-ID: <20071126115022.GA70340@pcjas.obspm.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.16 (2007-06-09) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (mesiob.obspm.fr [145.238.2.2]); Mon, 26 Nov 2007 12:50:22 +0100 (CET) X-Virus-Scanned: ClamAV version 0.91.2, clamav-milter version 0.91.2 on mesiob.obspm.fr X-Virus-Status: Clean Subject: Help for very bad perf for MySQL X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Albert.Shih@obspm.fr List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Nov 2007 11:50:34 -0000 Hi all I've already send a message. But I don't receive any answer :-(. I try again and hope there more solution I've a bi-proc single core Xeon 3.2ghz with FreeBSD 6.2, I'm running Mysql 5.X on this server and the performance of MySQL is very bad. For some complexe select I've got ~6secondes (on some basic Linux it's take 0.6 sec). And I think this is nothing about thead (that's mean I don't think FreeBSD 7.0 can solve my problem) because it's just for one select. The server have two SAS 10 000 tr/m disks. Anyone have some advise to tunning FreeBSD or MySQL for increase the perf ? Regards -- Albert SHIH Observatoire de Paris Meudon SIO batiment 15 Heure local/Local time: Lun 26 nov 2007 12:46:06 CET