From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264397AbTKZXmL (ORCPT ); Wed, 26 Nov 2003 18:42:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264399AbTKZXmL (ORCPT ); Wed, 26 Nov 2003 18:42:11 -0500 Received: from evrtwa1-ar2-4-35-049-074.evrtwa1.dsl-verizon.net ([4.35.49.74]:58240 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id S264397AbTKZXmF (ORCPT ); Wed, 26 Nov 2003 18:42:05 -0500 Message-ID: <3FC53A40.8010904@candelatech.com> Date: Wed, 26 Nov 2003 15:41:52 -0800 From: Ben Greear Organization: Candela Technologies User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031007 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "David S. Miller" CC: Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: Fire Engine?? References: <20031125183035.1c17185a.davem@redhat.com.suse.lists.linux.kernel> <20031126113040.3b774360.davem@redhat.com> <3FC505F4.2010006@google.com> <20031126120316.3ee1d251.davem@redhat.com> <20031126232909.7e8a028f.ak@suse.de> <20031126143620.5229fb1f.davem@redhat.com> <20031126235641.36fd71c1.ak@suse.de> <20031126151352.160b4734.davem@redhat.com> In-Reply-To: <20031126151352.160b4734.davem@redhat.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David S. Miller wrote: > On Wed, 26 Nov 2003 23:56:41 +0100 > Andi Kleen wrote: > > >>On Wed, 26 Nov 2003 14:36:20 -0800 >>"David S. Miller" wrote: >> >> >>>I don't think this is acceptable. It's important that all >>>of the timestamps are as accurate as they were before. >> >>I disagree on that. The window is small and slowing down 99.99999% of all >>users who never care about this for this extremely obscure >>misdesigned API does not make much sense to me. > > > We can't change behavior like this. Every time we've tried to > do it, we've been burnt. Remember nonlocal-bind? I'll try to write up a patch that uses the TSC and lazy conversion to timeval as soon as I get the rx-all and rx-fcs code happily into the kernel.... Assuming TSC is very fast and the conversion is accurate enough, I think this can give good results.... Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com