From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [Qemu-devel] Ideas wiki for GSoC 2010 Date: Tue, 16 Mar 2010 18:46:48 +0200 Message-ID: <4B9FB5F8.3060009@redhat.com> References: <20100310183023.6632aece@redhat.com> <4B9E2745.7060903@redhat.com> <20100315125313.GK9457@il.ibm.com> <20100315130310.GE13108@8bytes.org> <4B9E320E.7040605@redhat.com> <4B9E34E1.3090709@codemonkey.ws> <4B9E4D11.70402@redhat.com> <4B9F2130.6030903@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Jason Return-path: Received: from mx1.redhat.com ([209.132.183.28]:24298 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756240Ab0CPQqw (ORCPT ); Tue, 16 Mar 2010 12:46:52 -0400 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On 03/16/2010 06:33 PM, Jason wrote: > Avi Kivity redhat.com> writes: > > >> On 03/16/2010 02:20 AM, Jason wrote: >> >>> In comparing KVM 2.6.31.6b to XenServer 5.5.0, it seems KVM has fewer overall >>> VMREADs and VMWRITEs, but there are a lot of VMWRITEs to Host FS_SEL, Host >>> GS_SEL, Host FS_BASE, and Host GS_BASE that don't appear in Xen. >>> >> Ugh, these should definitely be eliminated, they keep writing the same >> value most of the time. >> >> > Sorry, I forgot to mention it would also be nice to reduce the unconditional > writes to Host CR0 if the TS issue can still be dealt with. > I have some ideas on how to deal with that. -- error compiling committee.c: too many arguments to function