From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre DERUMIER Subject: Re: [ceph-users] Ceph Dumpling/Firefly/Hammer SSD/Memstore performance comparison Date: Wed, 18 Feb 2015 09:34:20 +0100 (CET) Message-ID: <1298645585.1174612.1424248460594.JavaMail.zimbra@oxygem.tv> References: <54E37C3D.5030702@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mailpro.odiso.net ([89.248.209.98]:46248 "EHLO mailpro.odiso.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751652AbbBRIeW convert rfc822-to-8bit (ORCPT ); Wed, 18 Feb 2015 03:34:22 -0500 In-Reply-To: <974800637.1174441.1424248449764.JavaMail.zimbra@oxygem.tv> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Mark Nelson Cc: ceph-devel , ceph-users Nice Work Mark ! I don't see any tuning about sharding in the config file sample (osd_op_num_threads_per_shard,osd_op_num_shards,...) as you only use 1 ssd for the bench, I think it should improve results = for hammer ? ----- Mail original ----- De: "Mark Nelson" =C3=80: "ceph-devel" Cc: "ceph-users" Envoy=C3=A9: Mardi 17 F=C3=A9vrier 2015 18:37:01 Objet: [ceph-users] Ceph Dumpling/Firefly/Hammer SSD/Memstore performan= ce comparison Hi All,=20 I wrote up a short document describing some tests I ran recently to loo= k=20 at how SSD backed OSD performance has changed across our LTS releases.=20 This is just looking at RADOS performance and not RBD or RGW. It also=20 doesn't offer any real explanations regarding the results. It's just a=20 first high level step toward understanding some of the behaviors folks=20 on the mailing list have reported over the last couple of releases. I=20 hope you find it useful.=20 Mark=20 _______________________________________________=20 ceph-users mailing list=20 ceph-users@lists.ceph.com=20 http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com=20 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html