From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751828AbaEGRU0 (ORCPT ); Wed, 7 May 2014 13:20:26 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:50296 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750884AbaEGRUX (ORCPT ); Wed, 7 May 2014 13:20:23 -0400 Date: Wed, 07 May 2014 13:20:21 -0400 (EDT) Message-Id: <20140507.132021.591444790908478214.davem@davemloft.net> To: gnomes@lxorguk.ukuu.org.uk Cc: tom.zanussi@linux.intel.com, andi@firstfloor.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 08/24] net, diet: Make TCP metrics optional From: David Miller In-Reply-To: <20140507145938.79110827@alan.etchedpixels.co.uk> References: <20140505.232327.578134514220748085.davem@davemloft.net> <1399351148.8767.84.camel@empanada> <20140507145938.79110827@alan.etchedpixels.co.uk> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.7 (shards.monkeyblade.net [149.20.54.216]); Wed, 07 May 2014 10:20:23 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: One Thousand Gnomes Date: Wed, 7 May 2014 14:59:38 +0100 > 16MB of DRAM means adding a chip to your system. You've just exceeded the > space, power and cost budget on the very low end. In many cases like FPGA > systems you can't even add DRAM without major hoop jumping. A year or so for now this may not be true, which makes these kinds of changes very nearly in the "point in time solution" category. My main point in all of this is that whilst Linux should work on a braod range of system types, there has to be a limit somewhere and I think 2MB is off the deep end.