[Beowulf] [upgrade strategy] Intel CPU design bug & security flaw - kernel fix imposes performance penalty

[Xingqiu Yuan]

Intel recently claimed that their bug fix gives little affect on the chip's
performances last week.

On Mon, Jan 8, 2018 at 10:19 AM, Prentice Bisbal <pbisbal at pppl.gov> wrote:

> On 01/05/2018 07:35 PM, Gerald Henriksen wrote:
>
> On Fri, 5 Jan 2018 17:32:19 -0500, you wrote:
>>
>> According to several articles I read today:
>>>
>>> Meltdown (1 exploit)is Intel-specific
>>> Spectre  (2 different exploits) affects just about every processor on
>>> the planet.
>>>
>> This is correct, and the other key difference is that so far there is
>> only a solution to Meltdown.
>>
>> The below linked page has this to say about Spectre:
>>
>> "As it is not easy to fix, it will haunt us for quite some time"
>>
>> Fedora has linked to this page for more info on the two:
>>
>> https://spectreattack.com/
>>
>>
> I haven't checked out that link yet, but from what I read, spectre is also
> much harder to exploit, too, which mitigates the risk of spectre to some
> extent.
>
> Prentice
>
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