From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j4QHQnO03102 for ; Thu, 26 May 2005 13:26:49 -0400 Received: from atlrel9.hp.com (atlrel9.hp.com [156.153.255.214]) by mx3.redhat.com (8.12.11/8.12.11) with ESMTP id j4QHQhns023347 for ; Thu, 26 May 2005 13:26:43 -0400 Message-ID: <429606D1.7040106@hp.com> Date: Thu, 26 May 2005 13:26:41 -0400 From: Howard Rifkin MIME-Version: 1.0 Subject: Re: [linux-lvm] Re: Daemon or Thread with 5 minute interval References: <4295B7F7.9060802@hp.com> In-Reply-To: Content-Transfer-Encoding: 7bit Reply-To: howard.rifkin@hp.com, 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: LVM general discussion and development , bill.mair@web.de 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. Thanks Howard Bill Mair wrote: > Howard Rifkin wrote: > >> So, my question is does anyone know of a >> kernel thread or daemon in the 2.4 kernel that wakes up every 5 minutes? > > > [kupdated] can cause massive CPU load if your kernel does not have the > IDE chipset support for your system. I think it flushed any data in the HD > buffers to disk and if the chipset support isn't there, then the main > CPU has > to do this using PIO. > > -- > Bill > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/