From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id 6D9658D0039 for ; Mon, 7 Mar 2011 21:43:39 -0500 (EST) Received: from m1.gw.fujitsu.co.jp (unknown [10.0.50.71]) by fgwmail6.fujitsu.co.jp (Postfix) with ESMTP id B9DBB3EE0AE for ; Tue, 8 Mar 2011 11:43:33 +0900 (JST) Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id A2D3D45DE59 for ; Tue, 8 Mar 2011 11:43:33 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (s1.gw.fujitsu.co.jp [10.0.50.91]) by m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 8A3D045DE56 for ; Tue, 8 Mar 2011 11:43:33 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 7C7051DB8048 for ; Tue, 8 Mar 2011 11:43:33 +0900 (JST) Received: from m107.s.css.fujitsu.com (m107.s.css.fujitsu.com [10.240.81.147]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 452131DB803A for ; Tue, 8 Mar 2011 11:43:33 +0900 (JST) From: KOSAKI Motohiro Subject: Re: [PATCH 8/8] Add VM counters for transparent hugepages In-Reply-To: <20110307163513.GC13384@alboin.amr.corp.intel.com> References: <20110307172609.8A01.A69D9226@jp.fujitsu.com> <20110307163513.GC13384@alboin.amr.corp.intel.com> Message-Id: <20110308114159.7EAD.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Tue, 8 Mar 2011 11:43:23 +0900 (JST) Sender: owner-linux-mm@kvack.org List-ID: To: Andi Kleen Cc: kosaki.motohiro@jp.fujitsu.com, Andi Kleen , akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org > > Don't we need to make per zone stastics? I'm afraid small dma zone > > makes much thp-splitting and screw up this stastics. > > Does it? I haven't seen that so far. > > If it happens a lot it would be better to disable THP for the 16MB DMA > zone at least. Or did you mean the 4GB zone? I assumered 4GB. And cpusets/mempolicy binding might makes similar issue. It can make only one zone high pressure. But, hmmm... Do you mean you don't hit any issue then? I don't think do don't tested NUMA machine. So, it has no practical problem I can agree this. Thanks. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org