> Count indv cuml rcnt nsec Hottest CPU+PIL Caller
> -----------------------------------------------------------------------------
> --
> 2430 79% 79% 0.00 2682 cpu[0] i86_mwait
> 279 9% 88% 0.00 1364 cpu[0]+4 tsc_read
> 113 4% 92% 0.00 554980 cpu[0]+4 ddi_mem_get32
> 103 3% 95% 0.00 1437 cpu[0]+4 tsc_gethrtime
> ...
Looks like driver interrupts, on cpu #0, and at IPL 4.
What interrupts are bound to cpu 0 / IPL 4, on your
machine? This information is printed by
echo ::interrupts | mdb -k
Does the command "intrstat" show lots of interrupts /
lots of cpu time usage?
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