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Vulnerabilities in Intel chips

Started by Data, January 04, 2018, 11:46:01 AM

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0 Members and 1 Guest are viewing this topic. Total views: 34,385

Data

This story is all over the web, in case no one has heard about it I'm posting it here.

Will it have an impact on Intel CPU performance ? I don't know for sure but it looks possible. 

QuoteTwo critical vulnerabilities found in Intel chips can let an attacker steal data from the memory of running apps, such as data from password managers, browsers, emails, and photos and documents.

http://www.zdnet.com/article/security-flaws-affect-every-intel-chip-since-1995-arm-processors-vulnerable/


And for those like me that just want to watch a vid:


DaveMorton

Safe, Reliable Insanity, Since 1961!

Carl2

Since I don't have a server it shouldn't apply to me so I won't worry. I couldn't get around the password and used a pin instead.  Getting fed up with having to make up a account name and password for an account I won't use then seeing this made up name showing up in windows. 
  Since you guys have servers I'll just wish you luck.
Carl2

sybershot

QuoteWill it have an impact on Intel CPU performance ? I don't know for sure but it looks possible.
here is what i found so far about performance issues
http://www.guru3d.com/articles-pages/windows-vulnerability-cpu-meltdown-patch-benchmarked,1.html

DaveMorton

this is pretty much the takeaway I'm getting from that article:

Quote from: 3DGuru
Preliminary conclusion
Given what I am currently seeing, desktop users and PC gamers should not be worried about significant performance drops. Most test results do show a negative effect on performance, but we're really talking in a realm of 2% differentials here. The file IO tests didn't worry me either, and we used the fastest consumer NVME SSD on the globe to be able to see a bigger effect when measured. We did see a bit of a drop off in 4K performance, mostly reads up-to 3%. That's the worst I have been able to find out of all tests. Other than that you are looking at 1% maybe 2% differentials that could even be tagged as your typical statistical anomalies.
Safe, Reliable Insanity, Since 1961!

Data

I would like to see some more benchmark tests over the next few days but yes it's looking like a 2 to 3% performance reduction on most Intel PC's.

No biggie I guess, the bigger story is how vulnerable have our PC's been and why didn't Intel spot this earlier.

Oh well, at least AMD have gained another 2 to 3% performance on Intel  :P

Competition is a good thing :)

Freddy

Thank God it won't affect games much then  :P :LOL:

Data

Quote from: Freddy on January 05, 2018, 22:27:34 PM
Thank God it won't affect games much then  :P :LOL:

Yeah, that would have been unacceptable  :D

Snowcrash

Found this, it appears to be more than just Intel.

"I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me."

Ralph Waldo Emerson

Data

Some real world benchmarking after the patch:


Data

This story is still going on, now with BIOS updates and it seems we are starting to see some more serious performance drop-offs with storage devices, SSD's M.2's, up to 40% in some cases. CPU and GPU performance seems almost untouched.

Servers are also seeing some problems now.

Watch this vid for more info, the SSD benchmarks start at about 9 mins but there is some info on the BIOS up-dates at the beginning of the vid.



DaveMorton

This has turned into a right fiasco, hasn't it? :eeeek:
Safe, Reliable Insanity, Since 1961!

Data


Freddy

Yes, that's surprising, I mean MS never does that normally...oh wait... ;D