From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe Subject: Re: Disabling journal Date: Sun, 11 Nov 2012 22:33:50 +0100 Message-ID: <50A019BE.9030002@profihost.ag> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:42349 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751708Ab2KKVdv (ORCPT ); Sun, 11 Nov 2012 16:33:51 -0500 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Sage Weil Cc: ceph-devel@vger.kernel.org Hi Sage, > With btrfs, yes, although this isn't something we have tested in a while. I'm not using btrfs as long as the devs claim it is not ready for prod. > You'd need to play with 'filestore min sync interval' and 'filestore max > sync interval' to basically pick your latency range. Any suggestions? Right now i've 500MB tmpfs journal per SSD. Stefan