top -I and load average from 4.9 into 5.4
spambox at MHoerich.de
Mon Aug 22 14:21:19 GMT 2005
# pobox at verysmall.org:
> We upgraded from 4.9 to 5.4 and the 'top -I' and load average seem to
> behave slightly different. 'top -I' in 5.4 stays empty most of the time
> with processes flashing in and out from time to time.
Well, I'd actually expect them to, as -I filters out any idle
process. Justed tested on my 6.0B2, major CPU hogs are shown
> In 4.9 the processes stayed there until they are done.
Where's the difference to top [-i], then?
I don't really know enough about how load and utilization
are calculated. I'd guess load is calculated by the scheduler,
based on the number of processes whining for more/larger time
slices, whereas utilization is guessimated elsewhere, probably
something like process CPU time / available CPU time.
I'm none too sure there's an actual correlation between these
values, let alone load 1 = utilization 100%.
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