From owner-freebsd-smp@FreeBSD.ORG Tue Feb 27 22:27:13 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 E2CDE16A402 for ; Tue, 27 Feb 2007 22:27:13 +0000 (UTC) (envelope-from estrabd@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.170]) by mx1.freebsd.org (Postfix) with ESMTP id CC7BB13C494 for ; Tue, 27 Feb 2007 22:27:12 +0000 (UTC) (envelope-from estrabd@gmail.com) Received: by ug-out-1314.google.com with SMTP id 71so1149780ugh for ; Tue, 27 Feb 2007 14:27:11 -0800 (PST) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=E+RunK/tqE1QEFZpm/JQBRaACFIWg3giAO+y23QIXgxwjC+C5diiT6EHC2YKVr+zPcRoZsiwSLH3uihUy8QA43MDR9bHyjwYEtYO39hNCr45FgXKX7A1R7kNheF12GhbXxXUcy+XVbAnAOdwfxeZSdyWCBiHH3CwV672LjdN9Ao= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=lKGlP0IwPS4VHzctW64cYy3ArJHzGlWSYZ/DLGUaMX2h1rTisJd7J4eSiccec3u7EStZ+ZlNRgbLiL/j1gNtexFVEGkcvYMGE98l6xznAaBA+AU/b8lJ2dLn0dVGzWrxYCQI7ozTJEzReZ6I4OXqB0/FfyfK4YLkiLalN/cWF+M= Received: by 10.115.107.1 with SMTP id j1mr553569wam.1172613637873; Tue, 27 Feb 2007 14:00:37 -0800 (PST) Received: by 10.114.148.11 with HTTP; Tue, 27 Feb 2007 14:00:37 -0800 (PST) Message-ID: Date: Tue, 27 Feb 2007 22:00:37 +0000 From: "B. Estrade" Sender: estrabd@gmail.com To: "Kris Kennaway" In-Reply-To: <20070227205951.GA56651@xor.obsecurity.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070224213111.GB41434@xor.obsecurity.org> <20070227182511.GD29041@decibel.org> <20070227205951.GA56651@xor.obsecurity.org> X-Google-Sender-Auth: f8370664a7df8998 Cc: smp@freebsd.org 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 22:27:14 -0000 > 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. Cheers, Brett