Re: PSA: Clock drift and pkgin

[Johnny Billquist <bqt%softjar.se@localhost>]

I have run VMS on simh a fair amount. Can't remember seeing much of any 
clock drift there.
But I also am not sure if VMS actually tries to give any actual time 
resolution below 10ms.

  Johnny

On 2023-12-22 23:05, Rhialto wrote:
> On Tue 19 Dec 2023 at 17:43:39 +0000, Josh Moyer wrote:
> > I'd like to mention that -- IIRC -- I saw this on both my
> > KA630 and the simh emulated KA630, so it could be something specific
> > to the MicroVAX II and brethren.
>
> Did anybody properly try VMS on simh? If that fails to keep time
> corrently, surely it's not the operating system (VMS) at fault, but the
> emulator.
>
> I gave it a quick try myself (i.e. not properly) and it seemed like the
> VMS clock was running at around half speed. Maybe that is that "50%
> effect" that was mentioned earlier? I'm running simh on NetBSD/amd64 9.3
> with the default HZ=100, not HZ=1000.
>
> -Olaf.

--
Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt%softjar.se@localhost             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol