slow screen updates on laptop console (i386)

Rick Macklem rmacklem at uoguelph.ca
Mon Dec 7 23:01:11 UTC 2015


Adrian Chadd wrote:
> Hi,
> 
> ok. please file a bug for that. It may be something to do with the
> hardware and sleep states and skipping wakeups/interrupts or
> something.
> 
> Please try using the default again (LAPIC?) and set
> kern.eventtimer.periodic=1. See if that fixes it.
> 
Actually made it worse. Instead of being intermittently slow, it was
almost constantly slow.

I have no idea if these sysctl #s are useful:
kern.eventtimer.et.LAPIC.frequency: 49876422
kern.eventtimer.et.LAPIC.flags: 15

rick

> (i've had to debug this a few times before.)
> 
> 
> 
> -a
> 


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