From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <42BFB8BE.20903@yahoo.com.au> Date: Mon, 27 Jun 2005 18:28:46 +1000 From: Nick Piggin MIME-Version: 1.0 Subject: Re: [rfc] lockless pagecache References: <42BF9CD1.2030102@yahoo.com.au> <20050627004624.53f0415e.akpm@osdl.org> <42BFB287.5060104@yahoo.com.au> <20050627011539.28793896.akpm@osdl.org> In-Reply-To: <20050627011539.28793896.akpm@osdl.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Andrew Morton wrote: > Nick Piggin wrote: > >>Also, the memory usage regression cases that fault ahead brings makes it >> a bit contentious. > > > faultahead consumes no more memory: if the page is present then point a pte > at it. It'll make reclaim work a bit harder in some situations. > Oh OK we'll call that faultahead and Christoph's thing prefault then. I suspect it may still be a net loss for those that are running into tree_lock contention, but we'll see. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com -- 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