From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 4 Apr 2007 15:05:59 +0200 From: Andrea Arcangeli Subject: Re: [rfc] no ZERO_PAGE? Message-ID: <20070404130559.GD19587@v2.random> References: <20070329075805.GA6852@wotan.suse.de> <20070330024048.GG19407@wotan.suse.de> <20070404033726.GE18507@wotan.suse.de> <20070404102407.GA529@wotan.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: Nick Piggin , Andrew Morton , Linus Torvalds , Linux Memory Management List , tee@sgi.com, holt@sgi.com, Linux Kernel Mailing List List-ID: On Wed, Apr 04, 2007 at 01:45:06PM +0100, Hugh Dickins wrote: > I'm confused. CONFIG_ZERO_PAGE off is where we'd like to end up: how > would turning CONFIG_ZERO_PAGE on in -rc kernels help us to get there? He most certainly meant on by default. I think if we do this, we also need a zeropage counter in the vm stats so that we'll get a measure of the waste and it'll be possible to identify apps to optimize/fix. -- 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/ . Don't email: email@kvack.org