High system CPU% in dual CPU System

High system CPU% in dual CPU System

Post by Ingo Ciechowsk » Sun, 24 Jun 2001 07:40:09



I'm experiencing very high system CPU% indications on my new dual
Pentium III machine (SuSE Linux 7.1, Kernel 2.4.4-SMP):

  12:26am  up 1 day,  8:34,  9 users,  load average: 1.44, 2.74, 3.26
116 processes: 113 sleeping, 3 running, 0 zombie, 0 stopped
CPU0 states: 19.2% user, 32.0% system,  0.0% nice, 48.2% idle
CPU1 states: 20.4% user, 40.1% system,  0.0% nice, 38.3% idle
Mem:   512180K av,  498144K used,   14036K free,       0K shrd,  145360K buff
Swap: 1024120K av,    8504K used, 1015616K free                   39976K cache

   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
20308 root       9   0 21056  20M  1744 S     2.7  4.1   6:14 X
30471 capicall  12   0  1020 1020   772 R     0.7  0.1   0:36 top
   594 root       9   0   628  628   480 S     0.5  0.1   6:59 nscd
22072 ingo      17   0  1484 1484   576 R     0.5  0.2   0:00 ps
   596 root       9   0   628  628   480 S     0.3  0.1   6:36 nscd
22467 ingo       9   0  3940 3940  2812 R     0.3  0.7  11:03 gkrellm
22978 ingo       9   0  1380 1380  1132 S     0.3  0.2   0:04 ssh
   597 root       9   0   628  628   480 S     0.1  0.1   6:31 nscd
   598 root       9   0   628  628   480 S     0.1  0.1   6:35 nscd
22071 ingo      17   0  1036 1036   852 S     0.1  0.2   0:00 sh
...

After the initial Installation everything was fine - it must be
caused by some additonal package, but I have no clue.

What can I do to find out what the CPUs are doing during "system" time?

--

Ingo

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High system CPU% in dual CPU System

Post by Ingo Ciechowsk » Sun, 24 Jun 2001 14:00:09



Quote:>  > CPU0 states: 19.2% user, 32.0% system,  0.0% nice, 48.2% idle
>>  CPU1 states: 20.4% user, 40.1% system,  0.0% nice, 38.3% idle

>>  What can I do to find out what the CPUs are doing during "system" time?

>Try 'ps -ax' and see if any process has a large TIME (cumulative CPU time).
>I suspect you may just be seeing a kernel idle process (e.g. kapm-idled),
>which is nothing to worry about.

Hi Dan,

thanx for the hint. I could identify one of my scripts as cause of
the problem and will now have a closer look at its periodic activity..

Ingo
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Particularly, is there any reason why the Celerons might work but not
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(I hate the way you cannot understand these things from the
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I assume there is no SMP version of the Celeron....

Two 500Mhz Celerons going into an ABIT BP6 motherboard.

The system is intended for Linux kernel SMP testing.

Please email me directly if you can.

Hans

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