From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx127.postini.com [74.125.245.127]) by kanga.kvack.org (Postfix) with SMTP id 256F36B004D for ; Mon, 12 Mar 2012 12:31:40 -0400 (EDT) Date: Mon, 12 Mar 2012 11:04:05 -0500 (CDT) From: Christoph Lameter Subject: Re: ClockPro in Linux MM In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Zheng Da Cc: linux-mm@kvack.org On Mon, 12 Mar 2012, Zheng Da wrote: > I try to understand the Linux memory management. I was told Linux uses > ClockPro to manage page cache > and http://linux-mm.org/PageReplacementDesign also says so for file pages. > But when I read the ClockPro paper, > it doesn't look the same. The Linux implementation doesn't have > non-resident pages. Other than > that, it doesn't have the same test period mentioned in the paper. I wonder > if the Linux implementation > have the same effect as ClockPro. Could anyone confirm Linux is still using > ClockPro? That Linux is using Clockpro is news to me. Linux Memory management uses some ideas from Clockpro to improve reclaim etc but it does not implement ClockPro. -- 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