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 lB58qDhh020901 for ; Wed, 5 Dec 2007 03:52:13 -0500 Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.186]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id lB58ppK3001926 for ; Wed, 5 Dec 2007 03:51:51 -0500 Received: by rv-out-0910.google.com with SMTP id k15so3972423rvb for ; Wed, 05 Dec 2007 00:51:50 -0800 (PST) Message-ID: Date: Wed, 5 Dec 2007 00:51:50 -0800 From: "Dan Kegel" Sender: daniel.r.kegel@gmail.com MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: [linux-lvm] Improving performance with many snapshots 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 If you need to keep many snapshots mounted (e.g. 24 hourly snapshots), you may have noticed that it hurts write performance; see http://marc.info/?l=dm-devel&m=116322666022667&w=2 for data. We have some new code ready to test that should get around this problem. If you have time to test some new stuff on non-production machines, are running Ubuntu, Debian, or Gentoo (or like building from source), don't mind installing patched kernels, don't mind incomplete documentation, and do like filing bug reports, please see http://zumastor.org. We have something you might like. The rest of you, wait a few weeks, it's not ready for you yet :-) Thanks... - Dan