From mboxrd@z Thu Jan 1 00:00:00 1970 From: Danny Al-Gaaf Subject: Re: [Annonce]The progress of KeyValueStore in Firely Date: Tue, 03 Jun 2014 21:34:57 +0200 Message-ID: <538E2361.2040400@bisect.de> References: <531123F6.5070007@bisect.de> Reply-To: Danny Al-Gaaf Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ceph-users-bounces-idqoXFIVOFJgJs9I8MT0rw@public.gmane.org Sender: "ceph-users" To: Sushma R , Haomai Wang Cc: "ceph-users-idqoXFIVOFJgJs9I8MT0rw@public.gmane.org" , "ceph-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: ceph-devel.vger.kernel.org Am 03.06.2014 20:55, schrieb Sushma R: > Haomai, > > I'm using the latest ceph master branch. > > ceph_smalliobench is a Ceph internal benchmarking tool similar to rados > bench and the performance is more or less similar to that reported by fio. > > I tried to use fio with rbd ioengine ( > http://telekomcloud.github.io/ceph/2014/02/26/ceph-performance-analysis_fio_rbd.html) > and below are the numbers with different workloads on our setup. > Note : fio rbd engine segfaults with randread IO pattern, only with LevelDB > (no issues with FileStore). With FileStore, performance of > ceph_smalliobench and fio-rbd is similar for READs, so the numbers for > randread for LevelDB are with ceph_smalliobench (since fio rbd segfaults). Could you send me a backtrace of the segfault and some info about the ceph and fio version you used so that I can take a look at it? Thanks, Danny