> On Thu, Apr 10, 2008 at 12:08:59PM -0400, Jonathan Adams wrote: > > > > Hrm; try dropping the ', ustack()' from the script; that way, you're > > only considering kernel stacks, which should raise the amount of signal. > > > OK, this is again for 16k threads: > > - 835 hits in unix`cpu_halt > - 63 in unix`_resume_from_idle+0x83/genunix`restorectx+0x1f > - 33 in unix`sys_syscall+0x100 > = The following were entered from unix`sys_syscall+0x17b > (cv_wait / cv_signal): > - 53 in mutex_enter > - 42 in genunix`sleepq_wakeone_chan+0x17 > - 38 in genunix`thread_lock+0x19 > - 36 in genunix`sleepq_insert+0x29 > - 34 in genunix`sleepq_insert+0x4e > - 32 in genunix`lwp_hash_lookup+0x27 > > The total number of hits (I assume that's the final number at the > bottom of the dump) is 3948. The total running time was ~35 sec, > and the cpu_halt is again ~20% of the time.
It may be useful to observe prstat -mL which will report micro-state accounting data for each thread. - akolb _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
