deciphering top(1) output

Chuck Swiger cswiger at
Sat Feb 12 01:12:16 UTC 2011

On Feb 11, 2011, at 5:08 PM, Alexander Best wrote:
> also i noticed that when a processes CPU activity goes up to let's say 10% and
> then down again to 0% this doesn't mean that the idle process will jump to 200%
> instantly, but it takes ~ 10 seconds for it to reclaim the CPU activity that
> was used by the other process beforehand.

WCPU stands for "weighted CPU", and is an average over time.
Use -C flag if you want "raw" CPU instead....


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