From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j4QIF6O18057 for ; Thu, 26 May 2005 14:15:06 -0400 Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id j4QIF4ID030233 for ; Thu, 26 May 2005 14:15:04 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1DbMM9-0004j4-Fz for linux-lvm@redhat.com; Thu, 26 May 2005 19:41:17 +0200 Received: from pd95eac6e.dip.t-dialin.net ([217.94.172.110]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 26 May 2005 19:41:17 +0200 Received: from bill.mair by pd95eac6e.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 26 May 2005 19:41:17 +0200 From: Bill Mair Date: Thu, 26 May 2005 21:42:08 +0200 Message-ID: References: <4295B7F7.9060802@hp.com> <429606D1.7040106@hp.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit In-Reply-To: <429606D1.7040106@hp.com> Sender: news Subject: [linux-lvm] Re: Daemon or Thread with 5 minute interval Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-lvm@redhat.com Howard Rifkin wrote: > > We do have the right kernel support for our didsks. But, you do not need > a lot of CPU activity to generate noise. Just enough to disrupt the > cashe. Does kupdated run every 5 minutes? If so it could still be the > culprit. kupdated - journal update kswapd - swapper bdflush - flush IO All/any of them could cause problems fir what you are doing, but I don't think LVM is your problem. -- Bill