Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753972AbYH1Snc (ORCPT ); Thu, 28 Aug 2008 14:43:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753877AbYH1SnG (ORCPT ); Thu, 28 Aug 2008 14:43:06 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:52137 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752747AbYH1SnE (ORCPT ); Thu, 28 Aug 2008 14:43:04 -0400 Date: Thu, 28 Aug 2008 11:42:01 -0700 (PDT) From: Linus Torvalds To: Mark Hounschell cc: Steven Rostedt , Nick Piggin , Ingo Molnar , Peter Zijlstra , LKML , Stefani Seibold , Dario Faggioli , Max Krasnyansky , Thomas Gleixner , Andrew Morton Subject: Re: [PATCH 6/6] sched: disabled rt-bandwidth by default In-Reply-To: <48B6EB6F.2050802@compro.net> Message-ID: References: <20080819103301.787700742@chello.nl> <200808290036.35817.nickpiggin@yahoo.com.au> <200808290134.35093.nickpiggin@yahoo.com.au> <48B6EB6F.2050802@compro.net> User-Agent: Alpine 1.10 (LFD 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1502 Lines: 41 On Thu, 28 Aug 2008, Mark Hounschell wrote: > > More and more are wanting and now finding the Linux kernel to be more > RT capable. I seem to remember way back you saying it was one thing you didn't > really care much about one way or the other. Thats OK. But, you _are_ the man. The thing is, the reason I dislike RT is that so many people have so different understanding of what RT means. Quite frankly, I think that the people who are complaining (like you) think that RT means "hard realtime". You think about literally specialized devices. A lot of _other_ people think that RT means "good audio latency", where it really is a lot softer. And neither camp seems to ever admit that they are just a small camp, and that the other camp exists or is even valid. And I'm not really interested. Quite frankly, I suspect the "we want to run something like pulseaudio with RT priorities" camp is the more common one, and in that context I understand limiting SCHED_FIFO sounds perfectly understandable. As to your > "just to protect a few _supposedly_ bad programmers???" quite frankly, most programmers aren't "supposedly bad". And if you think that the hard-RT "real man" programmers aren't bad, I really have nothing to say. Linus -- 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/