From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f42.google.com (mail-wg0-f42.google.com [74.125.82.42]) by kanga.kvack.org (Postfix) with ESMTP id D96516B0038 for ; Thu, 25 Jun 2015 16:49:00 -0400 (EDT) Received: by wgqq4 with SMTP id q4so72470437wgq.1 for ; Thu, 25 Jun 2015 13:49:00 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id pd7si54726149wjb.51.2015.06.25.13.48.59 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 25 Jun 2015 13:48:59 -0700 (PDT) Date: Thu, 25 Jun 2015 21:48:55 +0100 From: Mel Gorman Subject: Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup Message-ID: <20150625204855.GC26927@suse.de> References: <20150513163157.GR2462@suse.de> <1431597783.26797.1@cpanel21.proisp.no> <20150624225028.GA97166@asylum.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20150624225028.GA97166@asylum.americas.sgi.com> Sender: owner-linux-mm@kvack.org List-ID: To: Nathan Zimmer Cc: Daniel J Blueman , Andrew Morton , Waiman Long , Dave Hansen , Scott Norton , Linux-MM , LKML , Steffen Persvold On Wed, Jun 24, 2015 at 05:50:28PM -0500, Nathan Zimmer wrote: > My apologies for taking so long to get back to this. > > I think I did locate two potential sources of slowdown. > One is the set_cpus_allowed_ptr as I have noted previously. > However I only notice that on the very largest boxes. > I did cobble together a patch that seems to help. > If you are using kthread_create_on_node(), is it even necessary to call set_cpus_allowed_ptr() at all? -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org