From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mxi1.enovance.com ([94.143.114.217]:16860 "EHLO mxi1.enovance.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932149AbaEGI1n convert rfc822-to-8bit (ORCPT ); Wed, 7 May 2014 04:27:43 -0400 Message-ID: <5369EE78.3060705@enovance.com> Date: Wed, 07 May 2014 10:27:36 +0200 From: Erwan Velu MIME-Version: 1.0 Subject: Re: Fio giving iops results that are equal to RAM speeds References: <5369E886.1030100@enovance.com> In-Reply-To: Content-Type: text/plain; charset="iso-8859-1"; format="flowed" Content-Transfer-Encoding: quoted-printable Sender: fio-owner@vger.kernel.org List-Id: fio@vger.kernel.org To: Kim Holmebakken Cc: fio@vger.kernel.org Le 07/05/2014 10:19, Kim Holmebakken a =EF=BF=BDcrit : > Also the direct=3D0 is for the fact that in the documentation to fio the = > direct=3D parameter is not supported for zfs. And as a result the test=20 > will not complete(it does not even create the test files).=20 So you need to make a much more longer run to minimize the cache effect.=20 Running like twice the memory of the server could be an interesting=20 test. 128M on a cached FS is clearly not enough. Erwan,