From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:47780 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756103Ab3A2NC5 (ORCPT ); Tue, 29 Jan 2013 08:02:57 -0500 Date: Tue, 29 Jan 2013 14:02:12 +0100 From: Jens Axboe Subject: Re: Group reporting with latency and IOPS Message-ID: <20130129130212.GB8800@kernel.dk> References: <843E15216120C047928F6879B0E2D9240F6D006F@SACEXCMBX02-PRD.hq.netapp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <843E15216120C047928F6879B0E2D9240F6D006F@SACEXCMBX02-PRD.hq.netapp.com> Sender: fio-owner@vger.kernel.org List-Id: fio@vger.kernel.org To: "Neto, Antonio Jose Rodrigues" Cc: "fio@vger.kernel.org" On Mon, Jan 28 2013, Neto, Antonio Jose Rodrigues wrote: > Hi All, > > This is neto from Brazil > > How are you? > > I just need a help to make sure I understood correctly the report (see below --Output). > > Trying to generate 80% Read and 20% Write - 8KB block size > > Reads > IOPS: 15330 > Latency: (clat) 628usecs - 0.628ms Correct. Well 629 really, if rounded properly. > Writes > IOPS: 3827 > Latency: (clat) 577usecs - 0.577ms Correct too. > Am I doing the correct analysis? Yep. > One question is: Is it possible to have global IOPS and latency? You mean for both read and write combined? Fio does not report that, but for IOPS you could just add them. For latency, the larger of the two. -- Jens Axboe