From owner-freebsd-questions@FreeBSD.ORG Mon Mar 1 07:36:37 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D897C16A4CE for ; Mon, 1 Mar 2004 07:36:37 -0800 (PST) Received: from mail.magic-garden.de (port-212-202-51-102.reverse.qsc.de [212.202.51.102]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1278A43D49 for ; Mon, 1 Mar 2004 07:36:37 -0800 (PST) (envelope-from kikic@magic-garden.de) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.0.5762.3 content-class: urn:content-classes:message Date: Mon, 1 Mar 2004 16:36:35 +0100 Message-ID: <19B481CA418DC04CA76EEF2B90B905F1033200@srv-mail.magic-garden.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: IBM x345 SMP server perfomrance collapse when running jails Thread-Index: AcP8dbjyY7mOO3sLReqQqepDkd5w8QDJnFdw From: "Zoran Kikic" To: Subject: IBM x345 SMP server perfomrance collapse when running jails X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Mar 2004 15:36:38 -0000 Hello, my IBM server don't like jails. I did a fresh 5.2.1 install and everything worked perfect and _fast_. I did a simple performance test with afi0 on a 500mb directory. afi0 did the backup in 82 seconds. After that I start 3 jails, just to compare the performance differences - well, it's a disaster! the same backup procedure was done in 110 seconds. I couldn't believe that and started additional 7 jails just to verify the result and surprise: backup test took 17 minutes but the load averages were at '9,32 8,54 7,22'!? The jails are extensive (apache, mysql, postfix, imap...) but that should not be problem on a smp 2 x 2.8 xeon. I run the same jails on fbsd 5.1 and didn't notice these performance problems. The jails were build on a 5.1 installation, but I'm running 5.2.1 now - could that be the problem? If yes, why?? I'll try to build fresh 5.2.1 jails with fresh mysql apache etc. but it takes so much time when the other jails are running - I can't turn them off.. :/=20 Does anybody has any hints for me? Thanks.