From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [10.36.7.58] (vpn1-7-58.ams2.redhat.com [10.36.7.58]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id q2REYdkd029211 for ; Tue, 27 Mar 2012 10:34:39 -0400 Message-ID: <4F71CFFF.6090909@redhat.com> Date: Tue, 27 Mar 2012 16:34:39 +0200 From: Zdenek Kabelac MIME-Version: 1.0 References: <4F6ECF9B.40907@nuclearwinter.com> <20120326155540.19c85fe9@bettercgi.com> <4F7100EC.6070406@nuclearwinter.com> In-Reply-To: <4F7100EC.6070406@nuclearwinter.com> Content-Transfer-Encoding: 7bit Subject: Re: [linux-lvm] LVM commands extremely slow during raid check/resync 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" To: linux-lvm@redhat.com Dne 27.3.2012 01:51, Larkin Lowrey napsal(a): > That helped bring the lvcreate time down from 2min to 1min so that's an > improvement. Thank you. > > The source of the remaining slowdown is the writing of metadata to my 4 > PVs. The writes are small and the arrays are all raid5 so each metadata > write is also requiring a read. I'm still at a loss for why this was not > a problem when running F15 but the filter is a workable solution for me > so I'll leave it alone. > Could you please attach attach output of 'lvs -a' and eventually your md array setup. Ideally open regular bugzilla for f16. Zdenek