From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Does anybody knows how to use gprof ?
Date:	Thu, 13 Nov 1997 07:04:43 +0000
Organization:	Two pounds of chaos and a pinch of salt
Lines:	31
Message-ID:	<346AA68B.6FB5@cs.com>
References:	<xhoul04 DOT 32 DOT 000E908D AT vse DOT cz>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp204.cs.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Houska Ludek - IN wrote:
> 
>    Do you know how to use gprof, or do you know where to get the
> documentation. ( Maybe I have the doc, but I don't know which one it is. )

The DJGPP Frequently Asked Questions list, an invaluable resource for
all DJGPP users, describes how to profile in chapter 13.  In chapter 5.5
it also mentions that the docs for gprof were omitted from the binary
distribution, but can be found in the source distribution.

I suggest you download and read the FAQ (v2/faq210b.zip from SimTel or
online at http://www.delorie.com/djgpp/v2faq/), but I will briefly
describe how to profile anyway:

Step 1)  Compile _AND_ link your program with the '-pg' switch.
Step 2)  Run your program for enough time to get a representative sample
of its calling tree.
Step 3)  Run 'gprof <yourprog>.exe', where <yourprog> is the name of
your program.  I recommend redirecting the voluminous output to a file.
Step 4)  Read the resulting file.  It is internally documented, so you
shouldn't have any problems figuring it out.

Good luck!

-- 
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|      John M. Aldrich       | "Always listen to experts.  They'll  |
|       aka Fighteer I       | tell you what can't be done, and why.|
|   mailto:fighteer AT cs DOT com   | Then do it."                         |
| http://www.cs.com/fighteer |                - Lazarus Long        |
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