From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: loaded router, excessive getnstimeofday in oprofile Date: Tue, 02 Sep 2008 10:04:30 -0700 Message-ID: <48BD721E.4060401@hp.com> References: <21915755.1327801219904892242.JavaMail.root@ouachita> <48B6E7D0.5070307@hp.com> <20031.1220236756@turing-police.cc.vt.edu> <20080831.205145.225080276.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: Valdis.Kletnieks@vt.edu, jmalicki@metacarta.com, andi@firstfloor.org, johnpol@2ka.mipt.ru, dada1@cosmosbay.com, denys@visp.net.lb, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, juhlenko@akamai.com, sammy@sammy.net To: David Miller Return-path: Received: from g4t0017.houston.hp.com ([15.201.24.20]:11914 "EHLO g4t0017.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751568AbYIBREj (ORCPT ); Tue, 2 Sep 2008 13:04:39 -0400 In-Reply-To: <20080831.205145.225080276.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: > I don't think anyone in this thread can even pretend to understand how > any of this stuff works So so last week I started asking FSI contacts I've built-up while answering their "how to improve latency" questions. The intent is to get some direct input from them on just what their and their regulator's expecations are wrt timestamping of packets and/or trades. rick jones