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

Arne Vajhøj arne at vajhoej.dk
Fri May 12 20:16:37 EDT 2023


On 5/12/2023 1:30 PM, Simon Clubley wrote:
> On 2023-05-12, Dave Froble <davef at tsoft-inc.com> wrote:
>> On 5/12/2023 8:14 AM, Simon Clubley wrote:
>>> That's going to make for some "interesting" real-time program behaviour... :-)
>>
>> Do you think any serious real time programmer will run a real time task inside a
>> VM?  I'm not a real time programmer, and I'd still not do that.
> 
> As well as traditional real-time stuff (which I agree with you about BTW),

I would not want to do it on a type 2 hypervisor - there must be
cases where what is happening on the host OS impact the performance
of the guest OS.

But with a type 1 hypervisor and no over allocation of resources -
would it be worse than running on bare metal?

Arne





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