From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: Re: Infiniband 40GB Date: Mon, 04 Jun 2012 09:26:32 +0200 Message-ID: <4FCC6328.3020606@profihost.ag> References: <4FCB1C0A.4050504@profihost.ag> <4FCB5EED.30909@inktank.com> <4FCC5431.6070002@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:36279 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753850Ab2FDH0f (ORCPT ); Mon, 4 Jun 2012 03:26:35 -0400 In-Reply-To: <4FCC5431.6070002@suse.de> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Hannes Reinecke Cc: Mark Nelson , "ceph-devel@vger.kernel.org" Am 04.06.2012 08:22, schrieb Hannes Reinecke: > Hehe. > Good luck with that. > > We've tried on 10GigE with _disastrous_ results. > Up to the point where 1GigE was actually _faster_. So you mean you've tried 10GBE or 10GB ipoib with Infiniband? > - osd-server is calling 'fsync' on each and every write request. > Does wonders for performance ... Already talked to the ceph guys? Stefan