{"id":34105,"date":"2019-10-31T21:56:25","date_gmt":"2019-10-31T18:56:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/uyazvimosti-mogut-sdelat-protsessory-amd-proizvoditelnee-chipov-konkurenta\/"},"modified":"2019-10-31T21:56:25","modified_gmt":"2019-10-31T18:56:25","slug":"uyazvimosti-mogut-sdelat-protsessory-amd-proizvoditelnee-chipov-konkurenta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/uyazvimosti-mogut-sdelat-protsessory-amd-proizvoditelnee-chipov-konkurenta","title":{"rendered":"Vulnerabilit\u0103\u021bile pot face procesoarele AMD mai performante dec\u00e2t cipurile concurente.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Recent revelations about another vulnerability in Intel processors, named MDS (or Zombieload), have sparked renewed debates about the performance hit users will face when implementing the proposed hardware fixes. Intel has published its own performance tests<\/a><\/noindex>, which demonstrated a minimal impact of the fixes on performance even with Hyper-Threading disabled. However, many do not agree with this stance. The Phoronix website conducted an independent o cercetare<\/a><\/noindex> probleme \u00een Linux \u0219i s-a constatat c\u0103 aplicarea corec\u021biilor pentru \u00eentregul complex de vulnerabilit\u0103\u021bi de procesor identificate recent duce la o sc\u0103dere a performan\u021bei procesoarelor Intel \u00een medie cu 16 % f\u0103r\u0103 dezactivarea Hyper-Threading \u0219i cu 25 % \u2014 cu dezactivarea acesteia. \u00cen schimb, performan\u021ba procesoarelor AMD cu arhitectura Zen+, a\u0219a cum arat\u0103 acelea\u0219i teste, scade doar cu 3 %.<\/p>\n

\"Vulnerabilit\u0103\u021bile<\/p>\n

From the tests presented in the study, one can conclude that the performance drop in Intel processors varies significantly from application to application and can easily exceed one and a half times when Hyper-Threading is disabled. This is exactly what spune<\/a><\/noindex> compania Apple, c\u00e2nd men\u021bioneaz\u0103 pre\u021bul pentru eliminarea Zombieload - de p\u00e2n\u0103 la 40 %. \u00cen acela\u0219i timp, Apple, la fel ca Google, afirm\u0103 c\u0103 sistemele bazate pe procesoare Intel pot fi complet sigure doar \u00een acest mod. Dac\u0103 nu se recurge la dezactivarea Hyper-Threading, sc\u0103derea performan\u021bei poate fi, de asemenea, destul de vizibil\u0103: \u00een cel mai r\u0103u caz, aceasta ajunge la de dou\u0103 ori mai mare.<\/p>\n

\"Vulnerabilit\u0103\u021bile<\/p>\n

Trebuie men\u021bionat c\u0103 testele Phoronix s-au referit la verificarea influen\u021bei \u00eentregului complex de corec\u021bii \u00eempotriva tuturor vulnerabilit\u0103\u021bilor recente - Spectre, Meltdown, L1TF \u0219i MDS. Aceasta \u00eenseamn\u0103 c\u0103, \u00een acest caz, se vorbe\u0219te despre diferen\u021ba maxim\u0103 de performan\u021b\u0103 pe care o vor observa de\u021bin\u0103torii procesoarelor Intel dup\u0103 aplicarea tuturor patch-urilor. Acest lucru explic\u0103 \u0219i sc\u0103derea performan\u021bei constatat\u0103 la procesoarele AMD. De\u0219i MDS nu le afecteaz\u0103, cipurile AMD sunt vulnerabile la unele tipuri de vulnerabilitate Spectre, motiv pentru care necesit\u0103, de asemenea, instalarea corec\u021biilor software. Cu toate acestea, nu sunt necesare m\u0103suri radicale, cum ar fi dezactivarea Hyper-Threading pentru ele.<\/p>\n

O sc\u0103dere semnificativ\u0103 a performan\u021bei procesoarelor Intel dup\u0103 aplicarea patch-urilor ar putea deveni un factor fatal pentru pozi\u021bia companiei pe pia\u021ba serverelor. \u00cen timp ce AMD se preg\u0103te\u0219te s\u0103 ridice standardul de performan\u021b\u0103 cu noile sale procesoare EPYC de 7 nm (Rome), performan\u021ba cipurilor Intel avanseaz\u0103 \u00een mod constant \u00een direc\u021bia opus\u0103. \u00cen acela\u0219i timp, abandonarea corect\u0103rii vulnerabilit\u0103\u021bilor \u00een solu\u021biile server este imposibil\u0103 - acolo acestea reprezint\u0103 principala amenin\u021bare. Astfel, AMD are \u0219ansa de a deveni \u00een cur\u00e2nd furnizorul de solu\u021bii server mai performante, ceea ce ar avea un impact semnificativ asupra pozi\u021biei sale pe pia\u021ba serverelor, unde compania inten\u021bioneaz\u0103 s\u0103 recupereze o cot\u0103 de 10% \u00een urm\u0103torul an.<\/p>\n

<\/center>
\n\"Vulnerabilit\u0103\u021bile<\/p>\n

Utilizatorii de sisteme desktop de consum pot renun\u021ba la aplicarea patch-urilor, cel pu\u021bin p\u00e2n\u0103 c\u00e2nd nu vor fi identificate scenarii de exploatare poten\u021bial periculoase pentru ei. Cu toate acestea, conform testelor Phoronix, dac\u0103 \u00een starea ini\u021bial\u0103 Core i7-8700K este mai rapid dec\u00e2t Ryzen 7 2700X cu 24% \u00een medie, dup\u0103 aplicarea corec\u021biilor, avantajul scade la 7%. Dac\u0103 se urmeaz\u0103 cele mai conservatoare recomand\u0103ri \u0219i se dezactiveaz\u0103, de asemenea, Hyper-Threading, procesorul AMD superior va fi mai rapid dec\u00e2t Core i7-8700K cu 4%.<\/p>\n

<\/p>\n

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Sursa: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041d\u0435\u0434\u0430\u0432\u043d\u0435\u0435 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e\u0431 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0435\u0439 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 MDS (\u0438\u043b\u0438 Zombieload), \u043f\u043e\u0441\u043b\u0443\u0436\u0438\u043b\u043e \u0441\u0442\u0438\u043c\u0443\u043b\u043e\u043c \u043a \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u043c\u0443 \u043e\u0431\u043e\u0441\u0442\u0440\u0435\u043d\u0438\u044e \u0441\u043f\u043e\u0440\u043e\u0432 \u043e \u0442\u043e\u043c, \u0441 \u043a\u0430\u043a\u0438\u043c \u043f\u0430\u0434\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u0438\u0434\u0451\u0442\u0441\u044f \u043c\u0438\u0440\u0438\u0442\u044c\u0441\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0437\u0430\u0445\u043e\u0442\u044f\u0442 \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c\u044b\u043c\u0438 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f\u043c\u0438 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Intel \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0435 \u0442\u0435\u0441\u0442\u044b \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u043a\u0440\u0430\u0439\u043d\u0435 \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u0432\u043b\u0438\u044f\u043d\u0438\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u043d\u0430 \u0431\u044b\u0441\u0442\u0440\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0434\u0430\u0436\u0435 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 Hyper-Threading. […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-34105","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Vulnerabilit\u0103\u021bile pot face procesoarele AMD mai performante dec\u00e2t cipurile competitorilor | ProHoster","description":"Recenta dezv\u0103luire a unei noi vulnerabilit\u0103\u021bi a procesoarelor Intel, cunoscut\u0103 sub numele de MDS (sau Zombieload), a stimulat o nou\u0103 intensificare a disputelor referitoare la c\u00e2t de mult\u0103 sc\u0103dere a performan\u021bei va implica 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\u043a\u043e\u043d\u043a\u0443\u0440\u0435\u043d\u0442\u0430 | ProHoster","og:description":"\u041d\u0435\u0434\u0430\u0432\u043d\u0435\u0435 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e\u0431 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0435\u0439 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 MDS (\u0438\u043b\u0438 Zombieload), \u043f\u043e\u0441\u043b\u0443\u0436\u0438\u043b\u043e \u0441\u0442\u0438\u043c\u0443\u043b\u043e\u043c \u043a \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u043e\u043c\u0443 \u043e\u0431\u043e\u0441\u0442\u0440\u0435\u043d\u0438\u044e \u0441\u043f\u043e\u0440\u043e\u0432 \u043e \u0442\u043e\u043c, \u0441 \u043a\u0430\u043a\u0438\u043c \u043f\u0430\u0434\u0435\u043d\u0438\u0435\u043c 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