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

[bill]

On 5/12/2023 8:18 PM, Arne Vajhøj wrote:
> On 5/12/2023 8:41 AM, bill wrote:
>> On 5/12/2023 8:14 AM, Simon Clubley wrote:
>>> On 2023-05-12, Jan-Erik Söderholm <jan-erik.soderholm at telia.com> wrote:
>>>> Actually, that was how I thought it worked. Since I observed that
>>>> the clock in my VirtualBox VMS environment lagge a bit behind
>>>> but each 10-20 sec, it jumpt ahead and skipped a second so that
>>>> it become in sync with the host Windows environment again.
>>>
>>> That's going to make for some "interesting" real-time program 
>>> behaviour... :-)
>>
>> Does VMS still claim to be an RTOS?  Did it ever (there was VAXELN)?
> 
> I don't think it ever has.
> 
> But 30 years ago most believed that VMS had better
> real time characteristics than Unix.

Basic Unix was never an RTOS.  But there were versions that made the
necessary modifications to be an RTOS.  But then I guess the question
becomes are they still Unix.  :-)

bill