From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755900Ab0GVFgd (ORCPT ); Thu, 22 Jul 2010 01:36:33 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:59070 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755483Ab0GVFga (ORCPT ); Thu, 22 Jul 2010 01:36:30 -0400 Subject: Re: [RFC][PATCH 9/9] make kvm mmu shrinker more aggressive From: Dave Hansen To: Avi Kivity Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Karl Rister In-Reply-To: <4C47CABC.1080801@redhat.com> References: <20100615135518.BC244431@kernel.beaverton.ibm.com> <20100615135530.4565745D@kernel.beaverton.ibm.com> <4C189830.2070300@redhat.com> <1276701911.6437.16973.camel@nimitz> <1276876156.6437.23323.camel@nimitz> <4C1DCD1A.4010306@redhat.com> <1277224359.9782.21.camel@nimitz> <4C47CABC.1080801@redhat.com> Content-Type: text/plain; charset="ANSI_X3.4-1968" Date: Wed, 21 Jul 2010 22:36:27 -0700 Message-ID: <1279776987.9785.2030.camel@nimitz> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2010-07-22 at 07:36 +0300, Avi Kivity wrote: > On 06/22/2010 07:32 PM, Dave Hansen wrote: > > On Sun, 2010-06-20 at 11:11 +0300, Avi Kivity wrote: > >>> That changes a few things. I bet all the contention we were seeing was > >>> just from nr_to_scan=0 calls and not from actual shrink operations. > >>> Perhaps we should just stop this set after patch 4. > >>> > >> At the very least, we should re-measure things. > >> > > Sure. I'll go back to the folks that found this in the first place and > > see how these patches affect the contention we were seeing. > > Dave, how did those tests go? Still waiting on the folks that found this in the first place to reproduce it and see if the patches help. I'll go nudge them some more. -- Dave