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

[Michael Moroney]

JF Mezei <jfmezei.spamnot at vaxination.ca> writes:

>Question:

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

VMS already supports hyperthreading on Itanics.  That's what started this
whole thread.

>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 ?

Look up sys$power_control on itanics. I've already tested it on I4s.
There are some features of high end Alphas, such as powering off 
individual CPUs, that don't seem to be available on Itanium at this time.
Hopefully these don't slip through the cracks when moving to x86.