How to reproduce:
- run top and change refresh delay to 0.1
- top reports self cpu usage as 0.0%
- run some other intensive task when top is running
- its cpu usage is correctly display
- run second instance of top with delay 0.1
- both tops show 0.0% cpu usage for both
This is obviously wrong, and I can''t reproduce it on vanilla kernel.
However,
there is one very interesting story. One of my projects is a binary proc
interface patch for vanilla kernel. It is still under development (well I
have some bugs in it which need some time to be found) but that''s not
what is
interesting.
Interesting is that with that patch, I have the same problem with top as
observed with XenoLinux.
As I don''t think mine and your project are very similiar :), this is a
potentialy very interesting problem. I will investigate my part when my job
duties allow me, but in the mean time I wanted to report this strange issue
to you.
Best regards,
Tvrtko A. Ursulin
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