From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sheng Yang Subject: Re: [ANNOUNCE] kvm-49 release Date: Fri, 2 Nov 2007 12:57:50 +0800 Message-ID: <200711021257.51067.sheng.yang@intel.com> References: <472A5D42.6080508@qumranet.com> <200711021115.24505.sheng.yang@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: "Haydn Solomon" Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org On Friday 02 November 2007 12:56:26 Haydn Solomon wrote: > On Nov 1, 2007 11:15 PM, Sheng Yang wrote: > > On Friday 02 November 2007 10:14:35 Haydn Solomon wrote: > > > On Nov 1, 2007 9:54 PM, Haydn Solomon wrote: > > > > On Nov 1, 2007 9:36 PM, Sheng Yang wrote: > > > > > On Friday 02 November 2007 09:10:31 Haydn Solomon wrote: > > > > > > How can I tell that my cpu has flexpriority? > > > > > > > > > > > > (Resending this as didn't cc list last time.) > > > > > > > > > > Oops, forgot the patch... > > > > > > > > Thanks Sheng. > > > > > > > > Luckily for me I've got the Flexpriority feature > > > > > > > > [root@localhost winxptest]# dmesg | grep lex > > > > kvm: FlexPriority enabled! > > > > > > > > One thing I do notice apart from noticeably very good responsiveness > > > > and > > > > > > performance on windows guest ( xp sp2 ) is that this is the lowest > > > > cpu usage I've seen on the qemu kvm process to date. I haven't tried > > > > smp > > > > yet > > > > > > but that will be my next test and will report on how that goes. > > > > Thanks guys and well done! > > > > > > One issue I do see. When I run my windows xp guest which is ACPI > > > Multiprocessor PC HAL with -smp 2, it runs much slower and cpu usage is > > > high. > > > > Please try the attach patch. > > Oh yeah... this is much much better. Windows seems to performing extremely > fast and cpu usage is very low using -smp 2 after applying this patch. > Thank you. > My pleasure. :) I will send this patch out. -- Thanks Yang, Sheng ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/