[Info-vax] Floating point emulation of OpenVMS / Alpha / ES

[Arne Vajhøj]

On 10/11/2022 4:20 PM, Nick K wrote:
> I'm curious what to expect when moving OpenVMS from an Alpha / ES
> server to a virtual machine with an emulator.  I'm mostly looking at
> the single threaded / single core floating point performance.  Are
> there emulators that are significantly better / worse for this task?
> Can I expect a comparable running time on the fastest (clock speed)
> Intel Xeon money can buy today?

I don't have an answer.

But two important questions must be:
1) does the Alpha emulator do JIT?
2) are you using F/G or S/T floats?

JIT and S/T could potentially be pretty fast.

Arne