[Info-vax] VMS on Raspberry Pi 5

[Johnny Billquist]

On 2023-11-13 13:50, Arne Vajhøj wrote:
> On 11/13/2023 5:26 AM, Pancho wrote:
>> On 12/11/2023 21:47, Bob Eager wrote:
>>> On Sun, 12 Nov 2023 21:43:35 +0000, Pancho wrote:
>>>
>>>> On 12/11/2023 21:05, The Natural Philosopher wrote
>>>>
>>>>> My impression of a Pi Zero is that it would knock a PDP/11 into the
>>>>> middle of next week, and then some.
>>>>>
>>>>>
>>>> Yeah, I would have expected 100s or 1000s of VUPS.
>>>
>>> On an emulator?
>>
>> More than 30.
>>
>> I don't really know the performance penalty of emulators.
> 
> The overhead of a non-JIT instruction set emulation
> must be huge.

Depending on the instructions and data, the overhead is somewhere 
between 10:1 to 100:1. In some extreme cases it can be way worse.

   Johnny