From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 210796B004F for ; Tue, 30 Jun 2009 22:55:58 -0400 (EDT) Message-ID: <4A4AD07E.2040508@redhat.com> Date: Tue, 30 Jun 2009 22:57:02 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: Found the commit that causes the OOMs References: <20090701021645.GA6356@localhost> <20090701022644.GA7510@localhost> <20090701114959.85D3.A69D9226@jp.fujitsu.com> In-Reply-To: <20090701114959.85D3.A69D9226@jp.fujitsu.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro Cc: Wu Fengguang , David Woodhouse , David Howells , Minchan Kim , Mel Gorman , Johannes Weiner , Andrew Morton , LKML , Christoph Lameter , "peterz@infradead.org" , "tytso@mit.edu" , "linux-mm@kvack.org" , "elladan@eskimo.com" , "npiggin@suse.de" , "Barnes, Jesse" List-ID: KOSAKI Motohiro wrote: >> [ 1522.019259] Active_anon:11 active_file:6 inactive_anon:0 >> [ 1522.019260] inactive_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 >> [ 1522.019261] free:1985 slab:44399 mapped:132 pagetables:61830 bounce:0 >> [ 1522.019262] isolate:69817 > > OK. thanks. > I plan to submit this patch after small more tests. it is useful for OOM analysis. It is also useful for throttling page reclaim. If more than half of the inactive pages in a zone are isolated, we are probably beyond the point where adding additional reclaim processes will do more harm than good. -- All rights reversed. -- 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