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microstar
2008 Jan 17
1
Under DTrace USDT and PID, kernel''s microstat accounting doesn''t work in this situation, doesn''t it?
...6%, kernel=0.2604%, idle=0.0000%
> per second: intr=308.89, ithr=208.89, syscall=3.13, csw=73.24
> per second: smtx=0.17, srw=0.00
> per second: migr= 0.00
> *
> No big difference between these 2 kernel time percentages!
>
> I think this is unbelievable! And maybe the answer is microstat accounting
> system cannot log this kind of interrupt.
> Since I try this program on Intel P4 platform. In i86pc, dtrace using "int
> $3" to help the user program to trap into dtrace kernel module.
>
> So, does it means that the mircostat accouting does not work in "in...