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 (8.13.1/8.13.1) with ESMTP id m4EKtUVD011565 for ; Wed, 14 May 2008 16:55:30 -0400 Received: from mx03.syneticon.net (mx03.syneticon.net [87.79.32.166]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m4EKtGw1028914 for ; Wed, 14 May 2008 16:55:16 -0400 Received: from localhost (filter1.syneticon.net [192.168.113.3]) by mx03.syneticon.net (Postfix) with ESMTP id A4F50936B for ; Wed, 14 May 2008 22:55:15 +0200 (CEST) Received: from mx03.syneticon.net ([192.168.113.4]) by localhost (mx03.syneticon.net [192.168.113.3]) (amavisd-new, port 10025) with ESMTP id QnvogJprmc3D for ; Wed, 14 May 2008 22:55:05 +0200 (CEST) Received: from [192.168.10.145] (koln-4d0b6e02.pool.mediaWays.net [77.11.110.2]) by mx03.syneticon.net (Postfix) with ESMTP for ; Wed, 14 May 2008 22:55:05 +0200 (CEST) Message-ID: <482B51A5.4070800@wpkg.org> Date: Wed, 14 May 2008 22:55:01 +0200 From: Tomasz Chmielewski MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] lvs / pvs takes ages to execute under slight load 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: LVM general discussion and development I noticed that various LVM commands, such as lvs, pvs, lvresize etc. can take several minutes to execute if I do a simple task like: dd if=/dev/vol/lv-snapshot of=/dev/vol/lv Other than LVM commands, the machine is responsive and works fine. Is it normal that LVM commands take so long to execute if we dd one volume (or snapshot volume) to another? I have Debian Etch 4.0 and kernel 2.6.24.2. -- Tomasz Chmielewski http://wpkg.org