From owner-freebsd-smp@FreeBSD.ORG Mon Oct 16 11:01:30 2006 Return-Path: X-Original-To: freebsd-smp@freebsd.org Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A420916A40F for ; Mon, 16 Oct 2006 11:01:30 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.230]) by mx1.FreeBSD.org (Postfix) with ESMTP id 291D743D67 for ; Mon, 16 Oct 2006 11:01:30 +0000 (GMT) (envelope-from asmrookie@gmail.com) Received: by wx-out-0506.google.com with SMTP id i27so1449949wxd for ; Mon, 16 Oct 2006 04:01:29 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=HqQQ2o1D6L84dYTGEAgYEIXqbq+SBTz2y3J64H852IdoP59Qy18MbzSTjoYHDCnGl0xFs9iQAXgk+WdrEUshnLEcmopejOhH0/HKxaeXuNv1HhHAX8ejQDi8/1PTLX9W3F0V4N8LbIJsltpxmDTfNrvtRuizkGBnrS2bcTvg6hA= Received: by 10.70.84.6 with SMTP id h6mr11236172wxb; Mon, 16 Oct 2006 04:01:29 -0700 (PDT) Received: by 10.70.12.2 with HTTP; Mon, 16 Oct 2006 04:01:29 -0700 (PDT) Message-ID: <3bbf2fe10610160401u72748b2fi919994fb18f422e5@mail.gmail.com> Date: Mon, 16 Oct 2006 13:01:29 +0200 From: "Attilio Rao" Sender: asmrookie@gmail.com To: kian.mohageri@gmail.com, "Ivan Voras" , freebsd-smp@freebsd.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Google-Sender-Auth: 13e2c695dc8d6fa9 Cc: Subject: Re: xeon 2.8GHz SMP/NOT test results X-BeenThere: freebsd-smp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD SMP implementation group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Oct 2006 11:01:30 -0000 2006/10/16, Ivan Voras : > Kian Mohageri wrote: > > > I've never used sysbench (I essentially picked it randomly) so if you know > > it to be a crappy benchmark tool for this sort of thing, do tell. I'm also > > pretty new at testing performance in general, but I hope someone finds it > > useful anyway. > > Maybe you'll be interested in ports/benchmark/unixbench, especially the > context switch and shell scripts benchmarks? > > > http://www.zampanosbits.com/smp_tests/ > > Interesting results, especially for such an early version of the > processor (wrt HTT) - I'd expect much lower gain from HTT. While you're > at it, maybe you could add more results to your benchmark, like change > the timecounter to TSC, use various gcc optimization flags, twiddle > machdep.cpu_idle_hlt, use SMP kernel with HTT disabled in BIOS? What about PREEMPTION/FULL_PREEMPTION? Attilio -- Peace can only be achieved by understanding - A. Einstein