linux-kernel - Re: [PATCH] Documentation: fix getdelays.c example -l option and segv

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Date:	Wed, 15 Aug 2007 16:50:41 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Michael Neuling <mikey@...ling.org>
CC:	linux-kernel@...r.kernel.org, akpm@...l.org
Subject: Re: [PATCH] Documentation: fix getdelays.c example -l option and
 segv

<snip>

>> Is this really required? a sleep() in the code. Why do we do multiple
>> send_cmd()'s in the do loop? I'll test and get back.
> 
> I needed to send another command to receive more data.  Without the per
> loop send_cmd, I never got any more stats. 
> 
> Should we receive more data without the additional send_cmd?  I've been
> running with: 
>   ./getdelays -d -p 1 -l
> 

Interesting, we never used -l that way. We used -l to get data for all
exiting tasks

./getdelays -d -l

For the usage you've mentioned, I'd use

while :
do
	sleep 2
	./getdelays -p 1 -d
done

I guess your changes change getdelays and since there are other ways
to obtaining the same data, I'd remove the last bit of changes made
to send the TGID often to get data.

> Mikey
> 
> 


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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