[Info-vax] clock problems with OpenVMS x86 on VirtualBox

[Arne Vajhøj]

On 5/15/2023 7:37 AM, Craig A. Berry wrote:
> On 5/12/23 3:25 PM, Clair Grant wrote:
>> Virtual Box 7.0.6, Lenovo ThinkBook, Windows 11
>>
>> I put SHOW TIME in a 10 minute loop and ran it 7 hours. Every output
>> showed exactly 10 minutes and 0 seconds from the previous. I did the
>> same thing on
>>
>> ESXi 8.0, DL580
>>
>> and got the same result. If we have a problem, it is certainly not
>> universal.
> 
> Thanks for the reply and for running your own test.  The problem is
> indeed not universal.  I'm beginning to think in my case there is some
> disagreement between VirtualBox and macOS, and/or something specific to
> the particular laptop hardware of the host.

 From the high level perspective then I think we need to realize that:

number of virtualization platforms (software and version) x number of OS 
platforms (software and version - discard if type 1 hypervisor) x number 
of HW platforms (CPU + MB + more combos) > number VMS x86-64 users

Impossible to test everything.

And in some cases there will be glitches.

Bug in VMS x86-64 or bug in virtualization software or bug in host OS
(if present) or bug in HW.

So far I believe the indication is that VMS x86-64 quality is
pretty good.

Let us call it VMS quality!  :-) :-) :-)

Arne