linux-kernel - Re: [PATCH] include children count, in Threads: field present in /proc/<pid>/status (take-3)

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Date:	Sun, 1 Oct 2006 20:34:30 +0900
From:	girish <girishvg@...il.com>
To:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, William Pitcock <nenolod@...eme.org>
Subject: Re: [PATCH] include children count, in Threads: field present in /proc/<pid>/status (take-3)

>>  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD   
>> RSIZE  VSIZE
>> 22429 top         16.6%  0:21.12   1    18    20  1.35M   684K   
>> 1.77M  26.9M
>> --------------------------------------------------------------------- 
>> ---
>> --------------------------------------------------------
>>
>> Comments/opinions?
>
> I fail to see which column you mean.
>
> #TH perhaps? I think, that can be calculated under linux by
>
>  (a) counting the directories in /proc/22429/task using readdir
> or

I have implemented the child_count script, in this way. I was  
wondering what is more convenient.


>  (b) get the nlink of /proc/22429/task and subtract 2, which should  
> give
>      the same as (a), and, better than (a), should also be atomic

This one, is good. I did not think about this approach. 
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