Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 28 Jan 2002 14:09:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 28 Jan 2002 14:09:24 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:6662 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id ; Mon, 28 Jan 2002 14:09:12 -0500 Message-ID: <3C55A028.3FD71164@zip.com.au> Date: Mon, 28 Jan 2002 11:02:00 -0800 From: Andrew Morton X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.18-pre7 i686) X-Accept-Language: en MIME-Version: 1.0 To: Daniel Phillips CC: Alex Davis , linux-kernel@vger.kernel.org Subject: Re: Don't use dbench for benchmarks In-Reply-To: <20020128144319.67654.qmail@web9203.mail.yahoo.com>, <20020128144319.67654.qmail@web9203.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Daniel Phillips wrote: > > On January 28, 2002 03:43 pm, Alex Davis wrote: > > > Continuing that theme: please don't use dbench for benchmarks. At all. > > > It's an unreliable indicator of anything in particular except perhaps > > > stability. Please, use something else for your benchmarks. > > > > What do you suggest as an acceptable benchmark??? > > A benchmark that tests disk/file system create/read/write/delete throughput, > as dbench is supposed to? Though I haven't used it personally, others > (Arjan) have suggested tiobench: > > http://tiobench.sourceforge.net/ > Also http://www.iozone.org/ Really, iozone isn't a benchmark as much as the "engine" of a benchmark. It has so many options that you can use it to build higher-level, more intelligent test suites by invoking it in specific ways. read/write, mmap, MS_SYNC, MS_ASYNC, O_DIRECT, aio, O_SYNC, fsync(), multiple threads, ... - - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/