From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 18 Nov 2004 18:35:25 -0800 (PST) From: Christoph Lameter Subject: Re: another approach to rss : sloppy rss In-Reply-To: <419D4EC7.6020100@yahoo.com.au> Message-ID: References: <419D47E6.8010409@yahoo.com.au> <419D4EC7.6020100@yahoo.com.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Hugh Dickins , Benjamin Herrenschmidt , linux-mm@kvack.org, linux-ia64@kernel.vger.org List-ID: On Fri, 19 Nov 2004, Nick Piggin wrote: > What do you think a per-mm flag to switch between realtime and lazy rss? Yes thats what the patch has. > The only code it would really _add_ would be your mm counting function... > I guess another couple of branches in the fault handlers too, but I don't > know if they'd be very significant. You would need to add hooks to all uses of rss. That adds additional code to the critical paths. -- 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: aart@kvack.org