From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id 3E0408D0040 for ; Thu, 24 Mar 2011 03:41:27 -0400 (EDT) Received: by iwl42 with SMTP id 42so12998766iwl.14 for ; Thu, 24 Mar 2011 00:41:25 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <20110324160349.CC83.A69D9226@jp.fujitsu.com> <20110324162936.CC87.A69D9226@jp.fujitsu.com> Date: Thu, 24 Mar 2011 16:41:25 +0900 Message-ID: Subject: Re: [PATCH 1/5] vmscan: remove all_unreclaimable check from direct reclaim path completely From: Minchan Kim Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: KOSAKI Motohiro Cc: linux-kernel@vger.kernel.org, Andrew Morton , David Rientjes , Linus Torvalds , Rik van Riel , Oleg Nesterov , linux-mm , Andrey Vagin , Hugh Dickins , KAMEZAWA Hiroyuki , Nick Piggin , Johannes Weiner On Thu, Mar 24, 2011 at 4:34 PM, Minchan Kim wrote: > On Thu, Mar 24, 2011 at 4:28 PM, KOSAKI Motohiro > wrote: >>> For example, In 4G desktop system. >>> 32M full scanning and fail to reclaim a page. >>> It's under 1% coverage. >> >> ?? I'm sorry. I haven't catch it. >> Where 32M come from? > > (1<<12) * 4K + (1<<11) + 4K + .. (1 << 0) + 4K in shrink_zones. Stupid me. Sorry. my calculation is totally wrong. Your explanation was perfect Okay. I don't have any objection to your solution. -- Kind regards, Minchan Kim -- 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