Subject: Re: time keeping on DEC 5k/133
To: None <port-pmax@netbsd.org>
From: Toru Nishimura <nisimura@itc.aist-nara.ac.jp>
List: port-pmax
Date: 01/29/2001 11:06:01
> I see this in messages while running a "make dependall" in src/lib/lic:
>
> Jan 27 16:08:35 pmax ntpd[151]: time reset 8.624711 s
> Jan 27 16:28:27 pmax ntpd[151]: time reset 10.262553 s
> Jan 27 16:48:43 pmax ntpd[151]: time reset 9.333885 s
> Jan 27 17:08:39 pmax ntpd[151]: time reset 9.448990 s
> Jan 27 17:28:42 pmax ntpd[151]: time reset 10.222737 s
> Jan 27 17:48:50 pmax ntpd[151]: time reset 10.170973 s
> Jan 27 18:10:27 pmax ntpd[151]: time reset 9.678973 s
> Jan 27 18:30:26 pmax ntpd[151]: time reset 7.792306 s
>
> Is this box just too slow to keep time and compile software?

No, it's nearly a bug, a major caveat of NetBSD kernel these days.
Kernel sits in timer interrupt masked off condition longer than used
to be, and looses ticks when it runs busy.

Tohru Nishimura