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03-01-2018, 18:04
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#1
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Ancient friend
Join Date: Feb 2010
Location: la bloc
Posts: 5,773
Mentioned: 41 Post(s)
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Meltdown si Spectre - efecte asupra procesoarelor Intel si AMD, patch-uri si noutati
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03-01-2018, 19:04
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#2
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Senior Member
Join Date: Aug 2013
Location: Brasov
Posts: 521
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Au imbulinat-o Intel. Asta ii va lovi rau de tot. Pana acum, tac malc, nu spun nimic.
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03-01-2018, 20:59
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#3
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Senior Member
Join Date: Nov 2012
Location: Timisoara - Ghiroda
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Quote:
Originally Posted by Steve-o
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"Trouble is, the patch inflicts an unavoidable performance penalty ranging between 30-35%, impacting the economics of using Intel processors versus AMD ones"
"AMD processors are not subject to the types of attacks that the kernel page table isolation feature protects against. The AMD microarchitecture does not allow memory references, including speculative references, that access higher privileged data when running in a lesser privileged mode when that access would result in a page fault."
https://www.techpowerup.com/240187/a...kernel-patches
Last edited by DeMons; 03-01-2018 at 21:07.
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03-01-2018, 22:32
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#4
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Senior Member
Join Date: Sep 2011
Location: Bucuresti
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Astia de la Intel nici macra nu s-au mai sichisit sa rezolve bugurile, dar sa mai imbunatateasca performanta procesoarelor. Acum ca AMD is luat la intrebari cu Ryzen, Intel isi arata slabiciunile. Oricum majoritatea tot Intel va lua ca deh marketing.
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Lo, we shall rise up And then we'll make the bugger's eyes water
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04-01-2018, 04:11
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#5
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VIP
Join Date: Oct 2010
Location: Cluj-Napoca
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Majoritatea consumerilor vor lua ce e mai ieftin la performanta la care au nevoie. Majoritatea corporatiilor vor lua ce vinde Lenovo, HP si Dell. Ii cam doare in cot ca e proc AMD sau Intel inauntru cand vine vorba de 80% din computerele din firme care fac word, excel, powerpoint si outlook.
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[PC-ul meu], Thinkpad T14
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04-01-2018, 10:11
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#6
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Junior Member
Join Date: Jun 2016
Posts: 9
Mentioned: 1 Post(s)
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A fost publicat bugul, de fapt bugurile, ca-s doua.
https://meltdownattack.com/
Meltdown afecteaza doar procesoarele Intel, Spectre afecteaza Intel/AMD/ARM ( dovada ca exista PoC pentru AMD).
Patchurile de zilele astea se ocupa doar de Meltdown, pentru Spectre nu exista(inca?) rezolvare.
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04-01-2018, 12:17
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#8
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Senior Member
Join Date: Sep 2011
Location: Bucuresti
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__________________
Through quiet reflection and great dedication Master the art of karate,
Lo, we shall rise up And then we'll make the bugger's eyes water
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04-01-2018, 17:47
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#9
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Member
Join Date: Nov 2009
Location: Baia Mare
Posts: 151
Mentioned: 8 Post(s)
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Si update-ul a venit . Acesta e pentru versiunea 1709 de windows.
Pentru cei care au versiuni mai vechi ,cautati in catalog urmatoarele KB :
KB4056888, KB4056890, KB4056891, KB405689 si vedeti care se instaleaza.
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04-01-2018, 20:41
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#10
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Ancient friend
Join Date: Mar 2010
Location: event horizon
Posts: 10,355
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Asta ar merita thread separat. @ Monstru?
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04-01-2018, 23:04
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#11
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Senior Member
Join Date: Sep 2011
Location: Bucuresti
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Mentioned: 20 Post(s)
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__________________
Through quiet reflection and great dedication Master the art of karate,
Lo, we shall rise up And then we'll make the bugger's eyes water
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04-01-2018, 23:47
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#12
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Ancient friend
Join Date: Aug 2009
Location: Bucharest
Posts: 8,895
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Windows Vulnerability CPU Meltdown Patch Benchmarked - Guru3d
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05-01-2018, 00:29
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#13
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Ancient friend
Join Date: Oct 2009
Posts: 15,320
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Se poate downloada patch standalone pentru W7 64bit?
L.E. Found it, trag un backup cu Acronis si incerc sa-l instalez. Ia sa dau de fapt si niste benchmarks rapide inainte.
https://www.catalog.update.microsoft...px?q=KB4056897
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Boggy doesn't have a computer.
Just a basement full of Asian kids that memorize numbers.
Last edited by Boggy; 05-01-2018 at 01:04.
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05-01-2018, 09:03
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#14
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Senior Member
Join Date: Aug 2011
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__________________
"I am wrath, I am steel, I am the mercy of angels"
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05-01-2018, 09:05
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#15
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Ancient friend
Join Date: Jul 2009
Location: Brasov
Posts: 2,752
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@ Boggy , mersi de update. Asa arata la mine dupa ce l-am instalat.
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05-01-2018, 10:12
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#16
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VIP
Join Date: Oct 2010
Location: Cluj-Napoca
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Quote:
Originally Posted by Otman
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Intel a incercat cu fiecare ocazie pe care a avut-o sa fie peste AMD, indiferent de mijloace. Nu ma mira ca fac rahaturi de astea. Isi mai aduce cineva aminte de scandalul Intel HP Dell?
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[PC-ul meu], Thinkpad T14
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05-01-2018, 12:39
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#17
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Ancient friend
Join Date: Mar 2010
Location: event horizon
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Quote:
Originally Posted by mbc
Intel a incercat cu fiecare ocazie pe care a avut-o sa fie peste AMD, indiferent de mijloace. Nu ma mira ca fac rahaturi de astea. Isi mai aduce cineva aminte de scandalul Intel HP Dell?
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Absolut toate procesoarele moderne au speculative exec, de aceea toate procesoarele din ultimii 10-15 ani sunt vulnerabile la spectre.
Cu meltdown este un pic altfel, doar Intel şi ARM au procesoare vulnerabile şi alegerea designului a permis performanțele clock per clock pe care le au de când au dat de pământ cu A64. Nu mi se pare că-i face evil sau ceva de genul.
Sent from my iPhone using Tapatalk
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05-01-2018, 13:06
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#18
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Senior Member
Join Date: Sep 2009
Location: Bucuresti
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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.
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05-01-2018, 14:17
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#19
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Administrator
Join Date: Jul 2009
Posts: 21,135
Mentioned: 770 Post(s)
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Quote:
Originally Posted by Neo
Asta ar merita thread separat. @ Monstru?
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Facem, daca vreti voi
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Suma prostiei ramane constanta. Doar prostii se schimba...
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05-01-2018, 15:43
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#20
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VIP
Join Date: Oct 2010
Location: Cluj-Napoca
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In videoul ala era vorba de faptul ca Intel a rigged din nou review-urile.
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[PC-ul meu], Thinkpad T14
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