From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <42BFBF5B.7080301@cisco.com> Date: Mon, 27 Jun 2005 18:56:59 +1000 From: Lincoln Dale 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> In-Reply-To: <42BFB287.5060104@yahoo.com.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Nick Piggin wrote: [..] > However I think for Oracle and others that use shared memory like > this, they are probably not doing linear access, so that would be a > net loss. I'm not completely sure (I don't have access to real loads > at the moment), but I would have thought those guys would have looked > into fault ahead if it were a possibility. i thought those guys used O_DIRECT - in which case, wouldn't the page cache not be used? cheers, lincoln. -- 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