Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932627Ab3CQPJk (ORCPT ); Sun, 17 Mar 2013 11:09:40 -0400 Received: from cantor2.suse.de ([195.135.220.15]:54907 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932096Ab3CQPJj (ORCPT ); Sun, 17 Mar 2013 11:09:39 -0400 Date: Sun, 17 Mar 2013 15:09:36 +0000 From: Mel Gorman To: Andi Kleen Cc: Linux-MM , Jiri Slaby , Valdis Kletnieks , Rik van Riel , Zlatko Calusic , Johannes Weiner , dormando , Satoru Moriya , Michal Hocko , LKML Subject: Re: [PATCH 03/10] mm: vmscan: Flatten kswapd priority loop Message-ID: <20130317150935.GB2026@suse.de> References: <1363525456-10448-1-git-send-email-mgorman@suse.de> <1363525456-10448-4-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: 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 Content-Length: 842 Lines: 23 On Sun, Mar 17, 2013 at 07:36:22AM -0700, Andi Kleen wrote: > Mel Gorman writes: > > > > To avoid infinite looping for high-order allocation requests kswapd will > > not reclaim for high-order allocations when it has reclaimed at least > > twice the number of pages as the allocation request. > > Will this make higher order allocations fail earlier? Or does compaction > still kick in early enough. > Compaction should still kick in early enough. The impact it might have is that direct reclaim/compaction may be used more than it was in the past. -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/