From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx192.postini.com [74.125.245.192]) by kanga.kvack.org (Postfix) with SMTP id 5D58F6B13F0 for ; Thu, 2 Feb 2012 04:35:07 -0500 (EST) Message-ID: <4F2A58A1.90800@redhat.com> Date: Thu, 02 Feb 2012 11:34:25 +0200 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [v7 0/8] Reduce cross CPU IPI interference References: <1327572121-13673-1-git-send-email-gilad@benyossef.com> <1327591185.2446.102.camel@twins> <1328117722.2446.262.camel@twins> <20120201184045.GG2382@linux.vnet.ibm.com> <20120201201336.GI2382@linux.vnet.ibm.com> In-Reply-To: <20120201201336.GI2382@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: paulmck@linux.vnet.ibm.com Cc: Christoph Lameter , Peter Zijlstra , Gilad Ben-Yossef , linux-kernel@vger.kernel.org, Chris Metcalf , Frederic Weisbecker , linux-mm@kvack.org, Pekka Enberg , Matt Mackall , Sasha Levin , Rik van Riel , Andi Kleen , Mel Gorman , Andrew Morton , Alexander Viro , Michal Nazarewicz , Kosaki Motohiro , Milton Miller On 02/01/2012 10:13 PM, Paul E. McKenney wrote: > > > > Could we also apply the same approach to processors busy doing > > computational work? In that case the OS is also not needed. Interrupting > > these activities is impacting on performance and latency. > > Yep, that is in fact what Frederic's dyntick-idle userspace work does. > Running in a guest is a special case of running in userspace, so we'd need to extend this work to kvm as well. -- error compiling committee.c: too many arguments to function -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org