From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267669AbUHaUxr (ORCPT ); Tue, 31 Aug 2004 16:53:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267650AbUHaUxo (ORCPT ); Tue, 31 Aug 2004 16:53:44 -0400 Received: from smtp.Lynuxworks.com ([207.21.185.24]:43272 "EHLO smtp.lynuxworks.com") by vger.kernel.org with ESMTP id S269161AbUHaUwg (ORCPT ); Tue, 31 Aug 2004 16:52:36 -0400 Date: Tue, 31 Aug 2004 13:52:11 -0700 To: Diego Calleja Cc: Jeff Garzik , bhuey@lnxw.com, torvalds@osdl.org, tmv@comcast.net, linux-kernel@vger.kernel.org Subject: Re: Userspace file systems & MKs (Re: silent semantic changes with reiser4) Message-ID: <20040831205211.GA23395@nietzsche.lynx.com> References: <20040826053200.GU31237@waste.org> <20040826075348.GT1284@nysv.org> <20040826163234.GA9047@delft.aura.cs.cmu.edu> <20040831033950.GA32404@zero> <413400B6.6040807@pobox.com> <20040831053055.GA8654@nietzsche.lynx.com> <4134131D.6050001@pobox.com> <20040831155613.2b25df1e.diegocg@teleline.es> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040831155613.2b25df1e.diegocg@teleline.es> User-Agent: Mutt/1.5.6+20040818i From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 31, 2004 at 03:56:13PM +0200, Diego Calleja wrote: > El Tue, 31 Aug 2004 01:56:45 -0400 Jeff Garzik escribi?: > > messaging passing is also known as "really slow C function calls" > > > > My PCI bus passes messages all the time. A message is in the eye of the > > beholder. > > There're some numbers for that: > > http://lists.freebsd.org/pipermail/freebsd-hackers/2003-August/002426.html As you can see the numbers are very fast for a general purpose system like that. Add that with their XIO framework for data propagation and you have a really amazingly fast system that combines both aggressive design and optimized low level facilities for both remote and local commuication. Matt's one of the very few open source engineers on this planet that can do both well. bill