From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: Re: less cores more iops / speed Date: Thu, 08 Nov 2012 10:28:57 +0100 Message-ID: <509B7B59.3050706@profihost.ag> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:59279 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751114Ab2KHJ3G (ORCPT ); Thu, 8 Nov 2012 04:29:06 -0500 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Alexandre DERUMIER Cc: Joao Eduardo Luis , ceph-devel@vger.kernel.org, Mark Nelson Am 08.11.2012 10:05, schrieb Alexandre DERUMIER: >> Do you have tried to compare virtio-blk and virtio-scsi ? >>> How to change? Right now i'm using the PVE defaults => scsi-hd. > > (virtio-blk is "classic" virtio ;) > >>> Do you have tried directly from the host with the rbd kernel module ? >>> No don't know how to use ;-) > http://ceph.com/docs/master/rbd/rbd-ko/ > #modprobe rbd > #sudo rbd map {image-name} --pool {pool-name} --id {user-name} this gives me also 8000 iops on the host with 3.6 Ghz. So this is the same like in KVM. Stefan