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

Johnny Billquist bqt at softjar.se
Mon May 15 06:13:55 EDT 2023


On 2023-05-12 14:14, 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... :-)

Yup. Basically, *do not run time senstive programs under a VM*. You will 
never have proper timing on things.

   Johnny




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