From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261772AbVGIXbm (ORCPT ); Sat, 9 Jul 2005 19:31:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261774AbVGIXbm (ORCPT ); Sat, 9 Jul 2005 19:31:42 -0400 Received: from smtp.lnxw.com ([207.21.185.24]:42253 "EHLO smtp.lnxw.com") by vger.kernel.org with ESMTP id S261772AbVGIXbN (ORCPT ); Sat, 9 Jul 2005 19:31:13 -0400 Date: Sat, 9 Jul 2005 16:37:41 -0700 To: Daniel Walker Cc: Ingo Molnar , Kristian Benoit , linux-kernel@vger.kernel.org, paulmck@us.ibm.com, bhuey@lnxw.com, andrea@suse.de, tglx@linutronix.de, karim@opersys.com, pmarques@grupopie.com, bruce@andrew.cmu.edu, nickpiggin@yahoo.com.au, ak@muc.de, sdietrich@mvista.com, hch@infradead.org, akpm@osdl.org, rpm@xenomai.org Subject: Re: PREEMPT_RT and I-PIPE: the numbers, part 4 Message-ID: <20050709233741.GA18435@nietzsche.lynx.com> References: <42CF05BE.3070908@opersys.com> <20050709071911.GB31100@elte.hu> <1120929727.22337.15.camel@c-67-188-6-232.hsd1.ca.comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1120929727.22337.15.camel@c-67-188-6-232.hsd1.ca.comcast.net> User-Agent: Mutt/1.5.9i From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jul 09, 2005 at 10:22:07AM -0700, Daniel Walker wrote: > PREEMPT_RT is not pre-tuned for every situation , but the bests > performance is achieved when the system is tuned. If any of these tests > rely on a low priority thread, then we just raise the priority and you > have better performance. Just think about it. Throttling those threads via the scheduler throttles the system in super controllable ways. This is very cool stuff. :) bill