From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matty Subject: Re: slow guest performance with build load, looking for ideas Date: Fri, 3 Jul 2009 06:41:11 -0400 Message-ID: <8bfce36e0907030341x32629f4er4bffc972a65c2e38@mail.gmail.com> References: <20090612210443.GA21840@sgi.com> <4A34C3D2.9020009@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE To: kvm@vger.kernel.org Return-path: Received: from an-out-0708.google.com ([209.85.132.248]:27590 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751718AbZGCKlJ convert rfc822-to-8bit (ORCPT ); Fri, 3 Jul 2009 06:41:09 -0400 Received: by an-out-0708.google.com with SMTP id d40so5176686and.1 for ; Fri, 03 Jul 2009 03:41:12 -0700 (PDT) In-Reply-To: <4A34C3D2.9020009@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Sun, Jun 14, 2009 at 5:33 AM, Avi Kivity wrote: >> I performed tests on two different systems to be sure it isn't relat= ed to >> specific hardware. >> > > What is the host cpu type? =A0On pre-Nehalem/Barcelona processors kvm= has poor > scalability in mmu intensive workloads like kernel builds. Hey Avi, Are there plans to address these scalability issues for pre-Nehalem/Barcelona processors? I poked around the KVM website, and I don't see anything related to this. Thanks, - Ryan -- http://prefetch.net