clock WAY off
John Baldwin
jhb at FreeBSD.org
Sat Jul 9 13:37:40 GMT 2005
On Friday 08 July 2005 12:44 pm, JR Dalrymple wrote:
> >On Thu, Jul 07, 2005 at 03:56:14PM -0800, JR Dalrymple wrote:
> >>The clock seems to be running at about 1/4 speed (SMP related maybe?).
>
> <Off list reply>
>
> >If you also post the output of "sysctl kern.timecounter" and "vmstat
> >-i" to the list, it may help diagnose the problem.
>
> genie# sysctl kern.timecounter
> kern.timecounter.stepwarnings: 0
> kern.timecounter.nbinuptime: 357873388
> kern.timecounter.nnanouptime: 0
> kern.timecounter.nmicrouptime: 8296
> kern.timecounter.nbintime: 153797574
> kern.timecounter.nnanotime: 171942
> kern.timecounter.nmicrotime: 153621939
> kern.timecounter.ngetbinuptime: 656730
> kern.timecounter.ngetnanouptime: 40589
> kern.timecounter.ngetmicrouptime: 161872387
> kern.timecounter.ngetbintime: 0
> kern.timecounter.ngetnanotime: 0
> kern.timecounter.ngetmicrotime: 26596618
> kern.timecounter.nsetclock: 623
> kern.timecounter.hardware: i8254
> kern.timecounter.choice: TSC(-100) i8254(0) dummy(-1000000)
> kern.timecounter.tick: 1
> kern.timecounter.smp_tsc: 0
> genie# vmstat -i
> interrupt total rate
> irq1: atkbd0 232 0
> irq6: fdc0 10 0
> irq10: fxp0 ahc1 5247043 73
> irq11: amr0 ahc0 3305544 46
> irq13: npx0 1 0
> lapic0: timer 532488625 7412
> lapic4: timer 532404584 7411
> lapic1: timer 532404584 7411
> lapic2: timer 532404584 7411
> Total 2138255207 29766
>
>
>
> I can kind of make sense of what this is trying to help me, but it's
> above my head as far as how to tune it.
>
> Thanks again for any help
This should be fixed now as the i8254 timer was broken when used with APIC for
a while.
--
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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