From owner-freebsd-smp@FreeBSD.ORG Tue Feb 27 22:09:26 2007 Return-Path: X-Original-To: smp@freebsd.org Delivered-To: freebsd-smp@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7B53F16A404 for ; Tue, 27 Feb 2007 22:09:26 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.freebsd.org (Postfix) with ESMTP id 684EF13C4AC for ; Tue, 27 Feb 2007 22:09:26 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id 4BFE31A4D80; Tue, 27 Feb 2007 14:09:26 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 653BA51873; Tue, 27 Feb 2007 17:09:25 -0500 (EST) Date: Tue, 27 Feb 2007 17:09:25 -0500 From: Kris Kennaway To: "B. Estrade" Message-ID: <20070227220924.GA57783@xor.obsecurity.org> References: <20070224213111.GB41434@xor.obsecurity.org> <20070227182511.GD29041@decibel.org> <20070227205951.GA56651@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.2i Cc: smp@freebsd.org, Kris Kennaway Subject: Re: Progress on scaling of FreeBSD on 8 CPU systems 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: Tue, 27 Feb 2007 22:09:26 -0000 On Tue, Feb 27, 2007 at 10:00:37PM +0000, B. Estrade wrote: > >I've mentioned this a couple of times, but postgresql didn't scale > >well [on freebsd at least] when I tried it last year. I hope to > >revisit when I get time. > > What other applications have you used to test the scalability? Have > you looked into utilizing OpenMP (available via intel compilers, which > are free for private use) ? > > http://www.intel.com/cd/software/products/asmo-na/eng/compilers/flin/282048.htm > > I am not sure of the state of GCC's OpenMP implementation > (http://gcc.gnu.org/projects/gomp/), but that might be more palatable > to some. > > It seems that there either exist OpenMP benchmarks for shared memory > systems or ones could be easily be created for fully exercising (or > maybe exorcising;) the system. One thing is for sure, there are a lot > of scientific applications out there written using OpenMP that might > serve this purpose as well. No, I've not looked at this. I don't have any experience with this system, but it might be a good project for someone to look into. Kris