From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752852AbaDYJFz (ORCPT ); Fri, 25 Apr 2014 05:05:55 -0400 Received: from cantor2.suse.de ([195.135.220.15]:38808 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752357AbaDYJFv (ORCPT ); Fri, 25 Apr 2014 05:05:51 -0400 Date: Fri, 25 Apr 2014 10:05:48 +0100 From: Mel Gorman To: riel@redhat.com Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, peterz@infradead.org, chegu_vinod@hp.com Subject: Re: [PATCH 2/3] sched,numa: retry placement more frequently when misplaced Message-ID: <20140425090548.GB23991@suse.de> References: <1397235629-16328-1-git-send-email-riel@redhat.com> <1397235629-16328-3-git-send-email-riel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1397235629-16328-3-git-send-email-riel@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 11, 2014 at 01:00:28PM -0400, riel@redhat.com wrote: > From: Rik van Riel > > When tasks have not converged on their preferred nodes yet, we want > to retry fairly often, to make sure we do not migrate a task's memory > to an undesirable location, only to have to move it again later. > > This patch reduces the interval at which migration is retried, > when the task's numa_scan_period is small. > > Signed-off-by: Rik van Riel > Tested-by: Vinod Chegu Acked-by: Mel Gorman -- Mel Gorman SUSE Labs