From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] ethernet: optimize memcpy and memset Date: Fri, 24 Aug 2007 22:35:56 -0700 (PDT) Message-ID: <20070824.223556.40827066.davem@davemloft.net> References: <20070817162950.6d8d07cd@freepuppy.rosehill.hemminger.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: shemminger@linux-foundation.org Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:50031 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755646AbXHYFf5 (ORCPT ); Sat, 25 Aug 2007 01:35:57 -0400 In-Reply-To: <20070817162950.6d8d07cd@freepuppy.rosehill.hemminger.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Stephen Hemminger Date: Fri, 17 Aug 2007 16:29:50 -0700 > The ethernet header management only needs to handle a fixed > size address (6 bytes). If the memcpy/memset are changed to > be passed a constant length, then compiler can optimize for > this case (and if it is smart eliminate string instructions). > > Signed-off-by: Stephen Hemminger Applied.