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Old 05-01-2018, 17:57   #21
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Se pare ca nu e nici ala asa de negru...

https://www.techspot.com/amp/article...mance-windows/
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Old 05-01-2018, 18:16   #22
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Si au tacut malc, ca doar trebuia sa le ia fata celor de la AMD. Anul trecut AMD ia fortat pe Intel si imediat albastrii si-au aratat slabiciunile, produse care nu sunt chiar asa de "superioare" cum ar parea.
Nici nu mai zic de bug-urile hardware de la sandy incoace, cu toate ca avea resurse mult mai mari sa imbunatateasca procesoarele, sa nu mai zic de avantajul performantei, dar nu au facut nimic.

AM bolduit fraza interesanta:

Intel Released "Coffee Lake" Knowing it Was Vulnerable to Spectre and Meltdown

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By the time Intel launched its 8th generation Core "Coffee Lake" desktop processor family (September 25, 2017, with October 5 availability), the company was fully aware that the product it is releasing was vulnerable to the three vulnerabilities plaguing its processors today, the two more publicized of which, are "Spectre" and "Meltdown." Google Project Zero teams published their findings on three key vulnerabilities, Spectre (CVE-2017-5753 and CVE-2017-5715); and Meltdown (CVE-2017-5754) in mid-2017, shared with hardware manufacturers under embargo; well before Intel launched "Coffee Lake." Their findings were made public on January 3, 2018.

Intel's engineers would have had sufficient time to understand the severity of the vulnerability, as "Coffee Lake" is essentially the same micro-architecture as "Kaby Lake" and "Skylake." As one security researcher puts it, this could affect Intel's liability when 8th generation Core processor customers decide on a class-action lawsuit. As if that wasn't worse, "Skylake" and later micro-architectures could require micro-code updates in addition to OS kernel patches to work around the vulnerabilities. The three micro-architectures are expected to face a performance-hit, despite Intel extracting colorful statements from its main cloud-computing customers that performance isn't affected "in the real-world." The company was also well aware of Spectre and Meltdown before its CEO dumped $22 million in company stock and options (while investors and the SEC were unaware of the vulnerabilities).
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Old 05-01-2018, 18:54   #23
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Doar ca in acel video nu era vorba de speculative exec sau de meltdown.



Era vorba acolo de TDP si frecventele Coffe Lake. Au adaugat 2 core-uri si au pastrat TDP-ul. Undeva trebuia sa se vada si s-a vazut in frecventele de boost care acum nu mai sunt garantate, de fapt nici macar nu mai sunt publice.



Asta inseamna ca un PC cu Coffe Lake cumparat din ALDI poate fi si cu 25% mai lent decat un sistem asamblat cu o placa de baza cu capabilitati de overclocking si racire de top avand acelasi procesor Coffe Lake, atentie non K deci fara capabilitati de overclocking. Si asta doar din TDP si cat urca in frecvente procesorul, ceea ce se poate intinde si la integratori cum sunt HP, Dell, Lenovo care nu vor vrea sa iasa din specificatiile Intel.


Video de 23 de minute despre asta? Scuze, am rămas blocat pe partea cu adevărat importantă din ultimele zile.

Ciclurile de upgrade Intel mă lasă rece de ani de zile.


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Old 05-01-2018, 21:56   #24
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Intel Braces for an Avalanche of Class Action Lawsuits
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Old 06-01-2018, 00:10   #25
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Nu mi se pare că-i face evil sau ceva de genul.
LOL! Inca de pe vremea primului razboi din Iraq se stie ca le-au luat lumina oriunde au avut sisteme cu Intel inside, pentru ca din fabrica veneau cu instructiuni de remote exploit, pe toate procesorele vandute in zona respectiva. La ceva ani diferenta a aparut si POC-ul la una din intrunirile DEFCON (nu gasesc linkul, probabil l-a ascuns goagalu, dar pe undeva trebuie sa mai am o copie de la pdf)
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Old 06-01-2018, 00:55   #26
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Şeful Intel şi-a vândut acţiunile )
Ce imi pare dubios ca mari integratori Dell, Hp, Ibm testau lucrurile astea. Stiu ca hp avea probleme de securitate la bladeurile superdome in ceea ce priveste resursele folosite de masinile virtuale.
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Old 06-01-2018, 01:01   #27
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Doar ce am revazut Total recall 2012 si m afce sa ma gandesc la cum este prezentata o realitate pentru a se face jocurile intr-un anumit fel.
Din pacate marea masa a utilizatorilor este manipulata fiindca are cunostinte minime despre asta.
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Old 06-01-2018, 01:07   #28
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Doar ce am revazut Total recall 2012...
oh gawd why would you?
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Old 06-01-2018, 02:47   #29
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Pai cand ai un manz care gaseste filmul (pe RTL) si ramane bosumflat ca ai schimbat canalul ...
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Old 06-01-2018, 13:21   #30
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RISC-V Foundation Issues Statement on Spectre, Meltdown Exploits
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Old 06-01-2018, 20:04   #31
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Quote:
Originally Posted by Artanis View Post
Se pare ca nu e nici ala asa de negru...

https://www.techspot.com/amp/article...mance-windows/
Lumea se uita daca ii mai merge cantarstraichi la fel de bine. Dracul este foarte negru pentru Intel, nu te uita ca nu iti loveste tie amaratul de K, I/O de pilda este lovit major in HPC, sa nu mai zic Cloud si tot ce tine de virtualizari. Tare mult imi doresc sa fiu, cu o punga de popcorn, la niste meetinguri care au acum intre Intel si clientii care ruleaza ferme HPC cu noduri interconectate cu infiniband. Cred ca lumea nu isi da seama cat costa 5% reducere de performanta in mediul corporate, sa nu zic mai rau.
Mai tineti minte cand Intel a facut breloace din Pentium? Nu cred ca suntem departe de cazul ala. II asteapta niste class action suits de toata frumusetea.

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Old 06-01-2018, 23:52   #32
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Si ce s-ar castiga daca Intel ar fi falimentata de astfel de procese ?
Nimeni nu risca chestii de-astea, sa fim seriosi .
Problema este ca Intel a tinut sub papuc totul si n-a facut nimic sa rezolve aceste probleme.
Si criza financiara s-a bazat pe aceleasi principii: lacomie, indiferenta, imprudenta, invincibilitate.
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Old 07-01-2018, 00:46   #33
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Mda, patchul penalizează infect de mult, cel puțin clusterul EvE Online. Iar ăsta este doar un exemplu. Mult mai mult de 30%.
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Old 07-01-2018, 00:58   #34
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Exista sansa ca, dupa ce se studiaza problema un pic sa se lanseze un patch care sa redea o parte din performanta pierduta?
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Old 07-01-2018, 01:28   #35
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Au avut deja 6 luni la dispoziție și cantărstraic merge la fel, tu ce crezi?


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Old 07-01-2018, 01:31   #36
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E clar atunci... Intel o sa fie dat in judecata din toate directiile. Si nu vad cum ar face recall pentru toate procurile, deci teapa.
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Old 07-01-2018, 02:07   #37
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Reface design-ul si le ofera la schimb 🤣 cu plus de performanta


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Old 07-01-2018, 07:12   #38
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Poate or face cum au facut cu placile de baza, alea de aveau bug S-Ata, nu mai stiu exact chipsetul cu belea...

Oricum o sa fie o problema financiara importanta la Intel...
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Old 07-01-2018, 10:46   #39
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Si tot cumparatorul o va suporta, prin marirea pretului la viitoarele procesoare.
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Old 07-01-2018, 13:07   #40
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So what? Buy AMD!!!
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