Date: Tue, 29 Mar 2005 22:06:36 -0800 (PST)
From: dean gaudet <dean-list-linux-kernel@arctic.org>
To: Jay Lan <jlan@engr.sgi.com>
cc: Paul Jackson <pj@engr.sgi.com>, johnpol@2ka.mipt.ru,
       guillaume.thouvenin@bull.net, akpm@osdl.org, greg@kroah.com,
       linux-kernel@vger.kernel.org, efocht@hpce.nec.com, linuxram@us.ibm.com,
       gh@us.ibm.com, elsa-devel@lists.sourceforge.net
Subject: Re: [patch 1/2] fork_connector: add a fork connector
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On Tue, 29 Mar 2005, Jay Lan wrote:

> The fork_connector is not designed to solve accounting data collection
> problem.
> 
> The accounting data collection must be done via a hook from do_exit().

by the time do_exit() occurs the parent may have disappeared... you do 
need to record something at fork() time so that you can account to the 
correct ancestor.

an example of where this ancestry is useful would be the summation of all 
cpu time spent by children of apache, spamd, clamd, ...

-dean
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