[Info-vax] Intel junk...Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign

[Snowshoe]

On 1/4/2018 10:28 AM, chrisv wrote:
> Designed By India H1B Engineers wrote:
> 
>> Crucially, these updates to both Linux and Windows will incur a
>> performance hit on Intel products. The effects are still being
>> benchmarked, however we're looking at a ballpark figure of five
>> to 30 per cent slow down, depending on the task and the
>> processor model.
> 
> This is ugly.  Think of the large computing centers, for example
> Google's data centers.  Suddenly, they will need significantly more
> CPU time, and thus electricity (and thus carbon), to get the job done?
> 

So that I understand this from a VMS point of view, assuming VSI 
succeeds at porting VMS to x86 but doesn't do anything about this 
problem (I'm sure they will):

A VMS process could in theory read system space since it is mapped into 
S0 space (or X86 equivalent).  However, assume VMS was changed in such a 
way that a new system process or pseudoprocess mapped system space but 
no other process did. Every system service required a context switch 
from the user process to system process to perform the system service, 
it would "fix" this on VMS.  Am I correct or all wet?

Intel is saying this doesn't happen on Itanium.

Alpha has pipelining and prediction in later versions, does Alpha have 
this problem?