From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 1/3][net-next] gianfar: Optimize struct gfar_priv_tx_q for two cache lines Date: Tue, 29 Jan 2013 15:22:27 -0500 (EST) Message-ID: <20130129.152227.957529528185001040.davem@davemloft.net> References: <1359467712-32079-1-git-send-email-claudiu.manoil@freescale.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: claudiu.manoil@freescale.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:59850 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752100Ab3A2UW2 (ORCPT ); Tue, 29 Jan 2013 15:22:28 -0500 In-Reply-To: <1359467712-32079-1-git-send-email-claudiu.manoil@freescale.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Claudiu Manoil Date: Tue, 29 Jan 2013 15:55:10 +0200 > Resize and regroup structure members to eliminate memory holes and > to pack the structure into 2 cache lines (from 3). > tx_ring_size was resized from 4 to 2 bytes and few members were re-grouped > in order to eliminate byte holes and achieve compactness. > Where possible, few members were grouped according to their usage and access > order (i.e. start_xmit vs. clean_tx_ring members), less important members > were pushed at the end. > > Signed-off-by: Claudiu Manoil Applied.