On Feb 11, 2011, at 4:41 PM, Alexander Best wrote:
>> It means (c).  Kernel activity, short-lived transient processes, and 
>> imperfections in sampling data are the other ~13 / 10 %....
> 
> thanks. it seems in some cases these imperfections have quite an impact:
> 
> last pid: 48135;  load averages:  5.11,  5.38,  5.02  up 0+03:15:20    
> 19:31:52
> 271 processes: 15 running, 242 sleeping, 14 waiting
> CPU 0: 76.4% user,  0.0% nice, 21.7% system,  2.0% interrupt,  0.0% idle
> CPU 1: 85.0% user,  0.0% nice, 12.6% system,  2.4% interrupt,  0.0% idle
> Mem: 1078M Active, 334M Inact, 403M Wired, 79M Cache, 212M Buf, 68M Free
> Swap: 18G Total, 438M Used, 18G Free, 2% Inuse
> 
>  PID    UID    THR PRI NICE   SIZE    RES STATE   C   TIME   WCPU COMMAND
> 48131      0      1  77    0 92112K 67164K CPU1    1   0:02 17.77% cc1
> 48135      0      1  76    0 90992K 65712K RUN     0   0:01 15.87% cc1

Sure.  Compiling software is a classic example where lots and lots of CPU 
intensive, short-lived processes are started.  Pay attention to last pid field; 
if it is steadily growing, especially at a rapid rate, lots of processes are 
spawning....

Regards,
-- 
-Chuck

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