Re: PSA: Clock drift and pkgin

[John Klos <john%klos.com@localhost>]

> Did anyone actually report results running on a 4000/60? Personally, I've 
> been running on a 4000/90, where time is not working well. But that one would 
> be depending on the ICR. But I haven't checked if it actually do have a 
> proper ICR. Does anyone know?

4000/60:

[     1.000003] timecounter: Timecounter "diagtimer" frequency 1000000 Hz quality 100
kern.timecounter.choice = clockinterrupt(q=0, f=100 Hz) diagtimer(q=100, f=1000000 Hz) dummy(q=-1000000, f=1000000 Hz)

That comes straight from:

counter = *(volatile u_int *)&ka46_cpu->vc_diagtimu;

which is

u_short vc_diagtimu;    /* 1a - usecond timer KA46 */

Over the course of a week, time on the 4000/60 is off by 1.13 to 1.15 
seconds when the system is loaded, and by about .25 seconds when it's 
idle, per day. I imagine that's due to thermals.

John