From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751721AbaAXLS1 (ORCPT ); Fri, 24 Jan 2014 06:18:27 -0500 Received: from cantor2.suse.de ([195.135.220.15]:48221 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752421AbaAXLSZ (ORCPT ); Fri, 24 Jan 2014 06:18:25 -0500 Date: Fri, 24 Jan 2014 11:18:22 +0000 From: Mel Gorman To: David Rientjes Cc: Andrew Morton , Rik van Riel , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [patch] mm, compaction: ignore pageblock skip when manually invoking compaction Message-ID: <20140124111822.GS4963@suse.de> References: 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 On Wed, Jan 22, 2014 at 09:56:31PM -0800, David Rientjes wrote: > The cached pageblock hint should be ignored when triggering compaction > through /proc/sys/vm/compact_memory so all eligible memory is isolated. > Manually invoking compaction is known to be expensive, there's no need to > skip pageblocks based on heuristics (mainly for debugging). > > Signed-off-by: David Rientjes Acked-by: Mel Gorman -- Mel Gorman SUSE Labs