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

[DaveFroble]

Bill Gunshannon wrote:
> On 01/05/2018 08:50 AM, Alan Browne wrote:
>> On 2018-01-04 15:43, DaveFroble wrote:
>>> 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?
>>>>
>>>
>>> And once all the spanners are tossed into the works, which will slow 
>>> things down, what happens when new CPUs without the issues are 
>>> available?  Will computers forever be artificially slowed down?
>>>
>>> A whole bunch of someones has seriously dropped the ball on this. 
>>> Protected memory should be just that, protected, with no way to avoid 
>>> the protection.
>>
>> I presume it's an implementation flaw, not a principle-of-design flaw. 
>> So once addressed, it should result in both proper memory protection 
>> and increased performance in future cores.  Alas (per the article) 
>> this can't be addressed with a microcode patch.
>>
> 
> Sounds more like a "principle-of-design" flaw to me.  Hard to
> believe all those different companies all made the same mistake
> building on a sound design.
> 
> bill
> 

I wonder whether VAX would have these problems?

:-)


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David Froble                       Tel: 724-529-0450
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