From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750774AbXAKQIk (ORCPT ); Thu, 11 Jan 2007 11:08:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750791AbXAKQIk (ORCPT ); Thu, 11 Jan 2007 11:08:40 -0500 Received: from il.qumranet.com ([62.219.232.206]:37916 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750774AbXAKQIk (ORCPT ); Thu, 11 Jan 2007 11:08:40 -0500 Message-ID: <45A66106.5030608@qumranet.com> Date: Thu, 11 Jan 2007 18:08:38 +0200 From: Avi Kivity User-Agent: Thunderbird 1.5.0.9 (X11/20061219) MIME-Version: 1.0 To: Ingo Molnar CC: kvm-devel , linux-kernel Subject: kvm & dyntick Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org It occurs to me that kvm could benefit greatly from dyntick: dyntick-enabled host: - generate virtual interrupts at whatever HZ the guest programs its timers, be it 100, 250, 1000 or whatever - avoid expensive vmexits due to useless timer interrupts dyntick-enabled guest: - reduce the load on the host when the guest is idling (currently an idle guest consumes a few percent cpu) What are the current plans wrt dyntick? Is it planned for 2.6.21? -- error compiling committee.c: too many arguments to function