From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753408AbXLSFSx (ORCPT ); Wed, 19 Dec 2007 00:18:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751173AbXLSFSp (ORCPT ); Wed, 19 Dec 2007 00:18:45 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:57141 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750878AbXLSFSp (ORCPT ); Wed, 19 Dec 2007 00:18:45 -0500 Date: Wed, 19 Dec 2007 14:17:53 +0900 From: KOSAKI Motohiro To: Rik van Riel Subject: Re: [patch 10/20] SEQ replacement for anonymous pages Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, lee.shermerhorn@hp.com In-Reply-To: <20071218211549.536791435@redhat.com> References: <20071218211539.250334036@redhat.com> <20071218211549.536791435@redhat.com> Message-Id: <20071219140904.9858.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.42 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rik-san, > To keep the maximum amount of necessary work reasonable, we scale the > active to inactive ratio with the size of memory, using the formula > active:inactive ratio = sqrt(memory in GB * 10). Great. why do you think best formula is sqrt(GB*10)? please tell me if you don't mind. and i have a bit worry to it works well or not on small systems. because it is indicate 1:1 ratio on less than 100MB memory system. Do you think this viewpoint? /kosaki