Timekeeping hosed by factor 3, high lapic[01] interrupt rates
John Baldwin
jhb at FreeBSD.org
Tue Jun 28 21:29:49 GMT 2005
On Tuesday 28 June 2005 05:07 pm, Jens Schweikhardt wrote:
> John et al,
>
> # Forget SMP and go back to UP for now. Turn off ntpd if you are using it,
> then # do something like this:
> #
> # # ntpdate ntp.xxxx ; sleep 10 ; ntpdate ntp.xxxx
> #
> # And try it both with the timecounter set to TSC and with the timecounter
> set # to i8254.
>
> Here we go, kernel with your second patch, boot with kern.smp.disabled=1.
Can you get the same ntpdate output for the kernel without the patch?
--
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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