From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 17 Jan 2001 18:05:25 +1100 (EST) From: Rik van Riel Subject: Re: pre2 swap_out() changes In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Marcelo Tosatti Cc: Linus Torvalds , Zlatko Calusic , linux-mm@kvack.org List-ID: On Fri, 12 Jan 2001, Marcelo Tosatti wrote: > On Fri, 12 Jan 2001, Linus Torvalds wrote: > > > If the page truly is new (because of some other user), then page_launder() > > won't drop it, and it doesn't matter. But dropping it from the VM means > > that the list handling can work right, and that the page will be aged (and > > thrown out) at the same rate as other pages. > > What about the amount of faults this potentially causes? The change has 2 influences on the number of faults: 1. the number of soft faults should probably increase 2. refill_inactive_scan() can deactivate more pages, since less pages will be trapped inside processes ... this can lead to better page replacement and less hard page faults regards, Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose... http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/ -- 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.eu.org/Linux-MM/