linux-kernel - Re: [REGRESSION] [Linux 3.2] top/htop and all other CPU usage

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Message-ID: <20111129075242.GB2675@tiehlicka.suse.cz>
Date:	Tue, 29 Nov 2011 08:52:42 +0100
From:	Michal Hocko <mhocko@...e.cz>
To:	pomac@...or.com
Cc:	linux-kernel@...r.kernel.org, rjw@...k.pl, tino.keitel@...ei.de,
	t.artem@...os.com
Subject: Re: [REGRESSION] [Linux 3.2] top/htop and all other CPU usage

On Mon 28-11-11 23:28:03, pomac@...or.com wrote:
> Hi, 
> 
> All this time i have been thinking i'm the only one - and i've been to
> loaded with work during working hours and tired when home =P
> 
> Anyways, I've neen seeing this since -rc1 on:
> Intel(R) Core(TM) i5 CPU U520  @ 1.07GHz - x86-64
> AMD Phenom(tm) II X6 1090T - x86-64
> AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ - x86-64
> Intel(R) Core(TM)2 CPU T7200  @ 2.00GHz - i686
> 
> Configs available on demand - I've been running the same config for
> quite some time though.

As I have written in other email could you post your config and collect
the following data?
for i in `seq 30`; 
do 
        cat /proc/stat > `date +'%s'`
        sleep 1
done
export old_user=0 old_nice=0 old_sys=0 old_idle=0 old_iowait=0; 

# for all your available CPUs
grep cpu0 * | while read cpu user nice sys idle iowait rest; 
do 
        echo $cpu $(($user-$old_user)) $(($nice-$old_nice)) $(($sys-$old_sys)) $(($idle-$old_idle)) $(($iowait-$old_iowait))
        old_user=$user old_nice=$nice old_sys=$sys old_idle=$idle old_iowait=$iowait
done

Thanks
-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic
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