Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261421AbVE2Tu7 (ORCPT ); Sun, 29 May 2005 15:50:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261422AbVE2Tu6 (ORCPT ); Sun, 29 May 2005 15:50:58 -0400 Received: from 65-102-103-67.albq.qwest.net ([65.102.103.67]:28339 "EHLO montezuma.fsmlabs.com") by vger.kernel.org with ESMTP id S261421AbVE2Tuf (ORCPT ); Sun, 29 May 2005 15:50:35 -0400 Date: Sun, 29 May 2005 13:52:45 -0600 (MDT) From: Zwane Mwaikambo To: Valdis.Kletnieks@vt.edu cc: Lee Revell , Bill Huey , Nick Piggin , Andi Kleen , Sven-Thorsten Dietrich , Ingo Molnar , dwalker@mvista.com, hch@infradead.org, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: RT patch acceptance In-Reply-To: <200505291750.j4THoUWW010374@turing-police.cc.vt.edu> Message-ID: References: <1117044019.5840.32.camel@sdietrich-xp.vilm.net> <20050526193230.GY86087@muc.de> <1117138270.1583.44.camel@sdietrich-xp.vilm.net> <20050526202747.GB86087@muc.de> <4296ADE9.50805@yahoo.com.au> <20050527120812.GA375@nietzsche.lynx.com> <429715DE.6030008@yahoo.com.au> <20050527233645.GA2283@nietzsche.lynx.com> <4297EB57.5090902@yahoo.com.au> <20050528054503.GA2958@nietzsche.lynx.com> <1117334933.11397.21.camel@mindpipe> <200505290408.j4T487n6024489@turing-police.cc.vt.edu> <200505291750.j4THoUWW010374@turing-police.cc.vt.edu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2755 Lines: 52 Hello Valdis, On Sun, 29 May 2005 Valdis.Kletnieks@vt.edu wrote: > As amply shown by the Ardour and linux-audio crowds, the *MAJOR* thing keeping > realtime apps from spreading further is the lack of usable RT support in CTOS > operating systems. Yes, you *can* do realtime audio - if you're willing to not > use a common operating system and run some specialized RTOS instead. This is > frequently a show-stopper for small-time use - if there's an additional $5K > cost to getting and installing an RTOS (quite likely you need a new computer, > or redo the one you have to dual-boot), it may not be a problem for a large > recording studio - but it *is* a problem for a small studio or a home user. > So you end up with "The 150 places that buy 48-channel mixers are using RT, > but the 40,000 people who buy 4/8 channel mixers aren't" - by your standards, > nobody's interested in 48-channel mixing boards either. I seem to have gotten you rather excited, you've actually gone as far as creating a strawman argument for my allegedly "strawman" statement. What i originally stated was that media applications are not common place as far as _hard_ realtime systems are concerned, this was in reply to Bill's emphasis on media applications. Now i'm not trying to undermine the audiophiles' goals or aspirations and i do indeed see the benefits for them but in the event of Linux becoming an RTOS, the main fields of interest wouldn't be from media application providers (even if there certainly will be an increase in their interest). > So tell me - who was using SMP with large numbers of processors *before*the > Linux kernel? Hmm.. You could buy an SGI Onyx. A Sun E10K. The IBM gear. > And for some odd reason, there wasn't many sites that just weren't doing > SMP - it wasn't that long ago that a 48-CPU Sun was enough to get you on the > Top500 supercomputer list. Now everybody and their pet llama has a 128-node > system, it seems.... Terribly sorry old bean, but Linux isn't the center of the universe. I'm afraid Linux wasn't the push factor which led to the proliferation of multiprocessor systems. > Large-scale SMP, realtime, whatever. It doesn't matter - you're pointing at it and > saying "But nobody *uses* it" when nobody can afford the technology, when there's > plenty of people lining up and saying "We *would* be using it if it were accessible". No, i never said that, please look at the original statement and the context to which it was based on. Cheers, Zwane - 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/