Profiling is AFAIK statistical, so it might not show the correct number. Certainly the count of interrupts does not appear high, but if the handler is spending a long time in the interrupt...
The script I sent measures the time spent in the handler (intrstat might do this as well, but I just don't know how intrstat works). On Thu, Oct 20, 2011 at 11:55 AM, Michael Stapleton < [email protected]> wrote: > You might be right. > > But 45% of what? > > Profiling interrupt: 5844 events in 30.123 seconds (194 events/sec) > > Count indv cuml rcnt nsec Hottest CPU+PIL > Caller > > ------------------------------------------------------------------------------- > 2649 45% 45% 0.00 1070 cpu[1] > i86_mwait > 358 6% 51% 0.00 963 cpu[0] > AcpiDebugPrint > 333 6% 57% 0.00 960 cpu[0] > AcpiUtTrackStackPtr > > 2649 times in 30 seconds totaling 1070 ns does not seem like much to me. > > My idle laptop shows: > > Count indv cuml rcnt nsec Hottest CPU+PIL > Caller > > ------------------------------------------------------------------------------- > 5441 93% 93% 0.00 3132 cpu[0] > i86_mwait > > > Mike > > On Thu, 2011-10-20 at 20:37 +0200, Michael Schuster wrote: > > > On Thu, Oct 20, 2011 at 20:33, Michael Stapleton > > <[email protected]> wrote: > > > Don't know. I don't like to trouble shoot by guess if possible. I > rather > > > follow the evidence to capture the culprit. Use what we know to > discover > > > what we do not know. > > > > if you're answering my question: I'm not guessing that much: I looked > > at lockstat output, and right there at the top we see i86_mwait > > consuming 45%(!) ... so, popped that into google, the link I quote is > > the first to appear, and the description matches well enough that I'd > > give it a try. > > > > Since Gernot is seeing the issue, maybe he wants to pitch in here? > > > > regards > > Michael > > > On Thu, 2011-10-20 at 20:25 +0200, Michael Schuster wrote: > > > > > >> Hi, > > >> > > >> just found this: > > >> > http://download.oracle.com/docs/cd/E19253-01/820-5245/ghgoc/index.html > > >> > > >> does it help? > > > _______________________________________________ > OpenIndiana-discuss mailing list > [email protected] > http://openindiana.org/mailman/listinfo/openindiana-discuss > -- "I hope some animal never bores a hole in my head and lays its eggs in my brain, because later you might think you're having a good idea but it's just eggs hatching" - Jack Handy _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
