Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 22 Feb 2003 18:18:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 22 Feb 2003 18:18:54 -0500 Received: from bitmover.com ([192.132.92.2]:47276 "EHLO mail.bitmover.com") by vger.kernel.org with ESMTP id ; Sat, 22 Feb 2003 18:18:54 -0500 Date: Sat, 22 Feb 2003 15:28:59 -0800 From: Larry McVoy To: William Lee Irwin III , Mark Hahn , "Martin J. Bligh" , linux-kernel@vger.kernel.org Subject: Re: Minutes from Feb 21 LSE Call Message-ID: <20030222232859.GC31268@work.bitmover.com> Mail-Followup-To: Larry McVoy , William Lee Irwin III , Mark Hahn , "Martin J. Bligh" , linux-kernel@vger.kernel.org References: <2080000.1045947731@[10.10.2.4]> <20030222221739.GF10411@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030222221739.GF10411@holomorphy.com> User-Agent: Mutt/1.4i X-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 861 Lines: 19 On Sat, Feb 22, 2003 at 02:17:39PM -0800, William Lee Irwin III wrote: > On Sat, Feb 22, 2003 at 05:06:27PM -0500, Mark Hahn wrote: > > ccNUMA worst-case latencies are not much different from decent > > cluster (message-passing) latencies. > > Not even close, by several orders of magnitude. Err, I think you're wrong. It's been a long time since I looked, but I'm pretty sure myrinet had single digit microseconds. Yup, google rocks, 7.6 usecs, user to user. Last I checked, Sequents worst case was around there, right? -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - 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/