Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756795Ab0HDIul (ORCPT ); Wed, 4 Aug 2010 04:50:41 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:42476 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754179Ab0HDIuk (ORCPT ); Wed, 4 Aug 2010 04:50:40 -0400 Date: Wed, 4 Aug 2010 04:50:39 -0400 From: Christoph Hellwig To: Dominik Brodowski , linux-raid@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org Subject: Re: How to track down abysmal performance ata - raid1 - crypto - vg/lv - xfs Message-ID: <20100804085039.GA11671@infradead.org> References: <20100804073546.GA7494@comet.dominikbrodowski.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100804073546.GA7494@comet.dominikbrodowski.net> User-Agent: Mutt/1.5.20 (2009-08-17) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 618 Lines: 13 On Wed, Aug 04, 2010 at 09:35:46AM +0200, Dominik Brodowski wrote: > How can I best track down the cause of the performance problem, > a) without rebooting too often, and > b) without breaking up the setup specified above (production system)? So did you just upgrade the system from an earlier kernel that did not show these problems? Or did no one notice them before? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/