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To: gentoo-performance@g.o
From: Alex Schuster <wonko@...>
Subject: Re: Horrible performance
Date: Thu, 26 Aug 2010 01:06:59 +0200
J. Roeleveld writes:

> Can you post the result of: "ps axu"?
> This will give an indication which processes are running and using a
> lot of memory.

The fifth colums gives the memory, right? Should this add up to the total 
of the 'used' column in free -m?

Because it does not:

wonko@weird ~ $ free -m
             total       used       free     shared    buffers     cached
Mem:          3452       3117        334          0         39        279
-/+ buffers/cache:       2798        653
Swap:         4094       1472       2622

wonko@weird ~ $ total=0; for rss in $( ps aux | grep -v USER | awk '{print 
$6}' ); do (( total += rss )); done; echo $(( total / 1024 ))
1984

So, I get a sum of around 2 G with ps, while free -m shows 4.5 G. Whoops? 
Am I missing something here, or does it look like lots of RAM is not being 
freed?

	Wonko


Replies:
Re: Horrible performance
-- Joost Roeleveld
References:
Hello? Thump-thump?
-- Alex Schuster
Horrible performance
-- Alex Schuster
Re: Horrible performance
-- J. Roeleveld
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Updated Aug 26, 2010

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