From owner-freebsd-hackers@FreeBSD.ORG Mon Jun 18 08:55:03 2007 Return-Path: X-Original-To: hackers@freebsd.org Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3032B16A421 for ; Mon, 18 Jun 2007 08:55:03 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout4.cac.washington.edu (mxout4.cac.washington.edu [140.142.33.19]) by mx1.freebsd.org (Postfix) with ESMTP id 07A8813C448 for ; Mon, 18 Jun 2007 08:55:03 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.33.9] (may be forged)) by mxout4.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.05) with ESMTP id l5I8t2ta014761 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 18 Jun 2007 01:55:02 -0700 X-Auth-Received: from [192.168.10.45] (c-24-10-12-194.hsd1.ca.comcast.net [24.10.12.194]) (authenticated authid=youshi10) by smtp.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l5I8t1C5015142 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 18 Jun 2007 01:55:02 -0700 Message-ID: <46764865.9030203@u.washington.edu> Date: Mon, 18 Jun 2007 01:55:01 -0700 From: Garrett Cooper User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: Peter Jeremy References: <467636C0.6040604@u.washington.edu> <20070618081532.GI1181@turion.vk2pj.dyndns.org> In-Reply-To: <20070618081532.GI1181@turion.vk2pj.dyndns.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Version: 5.3.1.294258, Antispam-Engine: 2.5.1.298604, Antispam-Data: 2007.6.18.13733 X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='__CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __USER_AGENT 0' Cc: hackers@freebsd.org Subject: Re: Making sense of ktrace(1) output X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Jun 2007 08:55:03 -0000 Peter Jeremy wrote: > On 2007-Jun-18 00:39:44 -0700, Garrett Cooper wrote: > >> However, I was able to get ktrace output. The only problem is that ktrace(1) >> apparently outputs only in binary, instead of plaintext output. Can I >> convert it to plaintext somehow and process it? >> > > kdump(1) > > grazi to all that replied -- that did the trick :). Now, note to self.. never ever do analysis on something so large as pkg_add thunderbird. Really, really bad idea :).. I'll make up some Perl scripts, produce some histograms, and see if I can better trace down this bottleneck. Thanks :), -Garrett