From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752423AbbFPOjY (ORCPT ); Tue, 16 Jun 2015 10:39:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55381 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754604AbbFPOjO (ORCPT ); Tue, 16 Jun 2015 10:39:14 -0400 Message-ID: <55803511.1060601@redhat.com> Date: Tue, 16 Jun 2015 10:39:13 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Srikar Dronamraju , Ingo Molnar , Peter Zijlstra CC: linux-kernel@vger.kernel.org, Mel Gorman Subject: Re: [PATCH v2 2/4] sched:Consider imbalance_pct when comparing loads in numa_has_capacity References: <1434455762-30857-1-git-send-email-srikar@linux.vnet.ibm.com> <1434455762-30857-3-git-send-email-srikar@linux.vnet.ibm.com> In-Reply-To: <1434455762-30857-3-git-send-email-srikar@linux.vnet.ibm.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/16/2015 07:56 AM, Srikar Dronamraju wrote: > This is consistent with all other load balancing instances where we > absorb unfairness upto env->imbalance_pct. Absorbing unfairness upto > env->imbalance_pct allows to pull and retain task to their preferred > nodes. > > Signed-off-by: Srikar Dronamraju How does this work with other workloads, eg. single instance SPECjbb2005, or two SPECjbb2005 instances on a four node system? Is the load still balanced evenly between nodes with this patch?