Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261265AbUJWUlp (ORCPT ); Sat, 23 Oct 2004 16:41:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261304AbUJWUgg (ORCPT ); Sat, 23 Oct 2004 16:36:36 -0400 Received: from pixpat.austin.ibm.com ([192.35.232.241]:4971 "EHLO linux.local") by vger.kernel.org with ESMTP id S261265AbUJWUeX (ORCPT ); Sat, 23 Oct 2004 16:34:23 -0400 Date: Sat, 23 Oct 2004 13:29:17 -0700 From: "Paul E. McKenney" To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, karim@opersys.com, Dimitri Sivanich Subject: Re: [RFC][PATCH] Restricted hard realtime Message-ID: <20041023202917.GC1267@us.ibm.com> Reply-To: paulmck@us.ibm.com References: <20041023194721.GB1268@us.ibm.com> <20041023201724.GA23936@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041023201724.GA23936@elte.hu> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 824 Lines: 20 On Sat, Oct 23, 2004 at 10:17:24PM +0200, Ingo Molnar wrote: > > * Paul E. McKenney wrote: > > > + bool "Reserve a CPU for hard realtime processes" > > this has been implemented in a clean way already: check out the > "isolcpus=" boot option & scheduler feature (implemented by Dimitri > Sivanich) which isolates a set of CPUs via sched-domains for precisely > such purposes. The way to enter such a domain is via the affinity > syscall - and balancing will leave such domains isolated. Thank you for the tip -- I will look this over! Thanx, Paul - 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/