[Info-vax] Disable hyper-threading from the DCL prompt

[JF Mezei]

Question:

Will the move to x86 require VMS add support for fancy CPU features that
can be turned on/off like hyperthreading ?

Operating systens liek OS-X seem to have plenty of automated features
for energy saving, core managemnt, shutting down cores when not needed
etc.  Wondering if VMS will HAVE to support any of those, or "SHOULD"
surpport any of those or whether those are more marketing PR gimmicks
that are not actually needed in real data centres ?