> Ok, for system cpu time usage: try to run a kernel
> profile, to find out what kernel functions are
> consuming
> the time, lockstat -kIW -D 20 sleep 15
I did one on the machine, and then quickly an ssh and another one in ssh for
the screenshot:
# lockstat -kIW -D 20 sleep 15
Profiling interrupt: 3074 events in 15.841 seconds (194 events/sec)
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
53 2% 97% 0.00 1369 cpu[0]+4 mul32
35 1% 98% 0.00 1337 cpu[0]+4 gethrtime
28 1% 99% 0.00 1379 cpu[0]+4 drv_usecwait
11 0% 99% 0.00 4931 cpu[0] (usermode)
4 0% 99% 0.00 2269 cpu[0]+4 do_splx
2 0% 99% 0.00 2306 cpu[1] fsflush_do_pages
2 0% 100% 0.00 279710 cpu[0] ddi_io_getw
1 0% 100% 0.00 2382 cpu[1] as_fault
1 0% 100% 0.00 1887 cpu[1] xsetitimer
1 0% 100% 0.00 13510 cpu[1] segvn_lockop
1 0% 100% 0.00 1705 cpu[0] poll_common
1 0% 100% 0.00 4468 cpu[1] syscall_mstate
1 0% 100% 0.00 3378 cpu[1]+11 thread_lock
1 0% 100% 0.00 2526 cpu[1] page_trylock
1 0% 100% 0.00 2103 cpu[1] kstat_compare_bykid
1 0% 100% 0.00 1403 cpu[1]+9 mutex_delay_default
-------------------------------------------------------------------------------
and 10 seconds later it was completely dead.
Does this help, or do you need another one?
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