From owner-freebsd-hackers@FreeBSD.ORG  Mon Jun 18 19:34:21 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
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 E86A316A468
	for <hackers@freebsd.org>; Mon, 18 Jun 2007 19:34:21 +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 C725C13C465
	for <hackers@freebsd.org>; Mon, 18 Jun 2007 19:34:21 +0000 (UTC)
	(envelope-from youshi10@u.washington.edu)
Received: from hymn01.u.washington.edu (hymn01.u.washington.edu [140.142.8.55])
	by mxout4.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.05) with ESMTP
	id l5IJYLAb008826
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO)
	for <hackers@freebsd.org>; Mon, 18 Jun 2007 12:34:21 -0700
Received: from localhost (localhost [127.0.0.1])
	by hymn01.u.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP
	id l5IJYLRj028011
	for <hackers@freebsd.org>; Mon, 18 Jun 2007 12:34:21 -0700
X-Auth-Received: from [192.55.52.1] by hymn01.u.washington.edu via HTTP;
	Mon, 18 Jun 2007 12:34:21 PDT
Date: Mon, 18 Jun 2007 12:34:21 -0700 (PDT)
From: youshi10@u.washington.edu
To: hackers@freebsd.org
In-Reply-To: <20070618191609.GM1181@turion.vk2pj.dyndns.org>
Message-ID: <Pine.LNX.4.43.0706181234210.1900@hymn01.u.washington.edu>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-PMX-Version: 5.3.1.294258, Antispam-Engine: 2.5.1.298604,
	Antispam-Data: 2007.6.18.121634
X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='NO_REAL_NAME 0,
	__CP_URI_IN_BODY 0, __CT 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0,
	__MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0'
Cc: 
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
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 18 Jun 2007 19:34:22 -0000

On Tue, 19 Jun 2007, Peter Jeremy wrote:

> On 2007-Jun-18 15:37:11 +0200, Roman Divacky <rdivacky@freebsd.org> wrote:
>> well.. instead of using ktrace I'd suggest building profiled pkg_add
>> and see that way where the time is spent. ktrace is great if you dont
>> have the source code... but you do :)
>
> If you decide to go this route, you might like to apply
> http://www.freebsd.org/cgi/query-pr.cgi?pr=99800
>
> By default gmon.out is overwritten by each process so you will only
> get the output from the last process of a given name.  My patch
> optionally saves the profiling output each process in a separate file.
> gprof(1) can already accumulate the output from multiple files so this
> patch gives you the ability to profile multiple executions of a single
> executable.  You will still need to glue together the profiling
> results from each executable.
>
> --
> Peter Jeremy
>


Yeah, I noticed that. Thanks for the heads up on the PR :).

Why not create a flag though instead of check to see if an environment variables been set?

-Garrett