From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751014AbVHVUU5 (ORCPT ); Mon, 22 Aug 2005 16:20:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751015AbVHVUU5 (ORCPT ); Mon, 22 Aug 2005 16:20:57 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:903 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1751013AbVHVUU4 (ORCPT ); Mon, 22 Aug 2005 16:20:56 -0400 Date: Mon, 22 Aug 2005 13:20:52 -0700 (PDT) Message-Id: <20050822.132052.65406121.davem@davemloft.net> To: tony.luck@intel.com Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, jasonuhl@sgi.com Subject: Re: CONFIG_PRINTK_TIME woes From: "David S. Miller" In-Reply-To: <200508221742.j7MHgMJI020020@agluck-lia64.sc.intel.com> References: <20050821021322.3986dd4a.akpm@osdl.org> <20050821021616.6bbf2a14.akpm@osdl.org> <200508221742.j7MHgMJI020020@agluck-lia64.sc.intel.com> X-Mailer: Mew version 4.2 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: tony.luck@intel.com Date: Mon, 22 Aug 2005 10:42:22 -0700 > At the other extreme ... the current use of sched_clock() with > potentially nano-second resolution is way over the top. Not really, when I'm debugging TCP events over gigabit these timestamps are exceptionally handy.