{"id":34126,"date":"2019-10-31T21:56:32","date_gmt":"2019-10-31T18:56:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam\/"},"modified":"2019-10-31T21:56:32","modified_gmt":"2019-10-31T18:56:32","slug":"amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","title":{"rendered":"AMD przed premier\u0105 Zen 2 og\u0142osi\u0142o bezpiecze\u0144stwo i odporno\u015b\u0107 swoich procesor\u00f3w na nowe ataki","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ju\u017c od ponad roku, po odkryciu Spectre i Meltdown, rynek procesor\u00f3w dr\u017ca\u0142 z powodu odkrycia coraz to nowych podatno\u015bci zwi\u0105zanych z obliczeniami spekulacyjnymi. Najbardziej nara\u017cone na nie, w tym<\/a><\/noindex> ostatnio<\/a><\/noindex> ZombieLoad<\/a><\/noindex>, okaza\u0142y si\u0119 chipy Intel. Oczywi\u015bcie, AMD nie mog\u0142a tego nie wykorzysta\u0107, podkre\u015blaj\u0105c bezpiecze\u0144stwo swoich procesor\u00f3w.<\/p>\n

\"AMD<\/p>\n

Na stronie<\/noindex>, dotycz\u0105cej luk podobnych do Spectre, firma dumnie og\u0142osi\u0142a: «W AMD projektujemy nasze produkty i us\u0142ugi z my\u015bl\u0105 o wymaganiach bezpiecze\u0144stwa. Na podstawie przeprowadzonej wewn\u0119trznej analizy i dyskusji z badaczami w dziedzinie bezpiecze\u0144stwa, uwa\u017camy, \u017ce nasze produkty nie s\u0105 podatne na ataki Fallout, RIDL<\/a><\/noindex> lub ZombieLoad<\/a><\/noindex> , dzi\u0119ki obecno\u015bci sprz\u0119towych mechanizm\u00f3w ochrony w naszej architekturze. Nie uda\u0142o nam si\u0119 zreprodukowa\u0107 tych podatno\u015bci na produktach AMD i nie mamy danych, kt\u00f3re sugerowa\u0142yby, \u017ce ktokolwiek inny by\u0142 w stanie to osi\u0105gn\u0105\u0107». Doniesiono, \u017ce procesory AMD s\u0105 odporne na jeszcze jeden atak MDS<\/a><\/noindex> \u2014 Store-to-Leak Forwarding<\/a><\/noindex>.<\/p>\n

W wyniku odkrycia coraz to nowych podatno\u015bci i konieczno\u015bci producent\u00f3w do wdra\u017cania odpowiednich \u0142atek, procesory AMD mog\u0105 okaza\u0107 si\u0119 wydajniejsze od rozwi\u0105za\u0144 konkurencji, zgodnie z niedawnym niezale\u017cnym badaniem<\/a><\/noindex>, przeprowadzanemu przez stron\u0119 Phoronix, zastosowanie pe\u0142nego zestawu poprawek dla wykrytych luk procesorowych zwi\u0105zanych z obliczeniami spekulacyjnymi prowadzi do zmniejszenia wydajno\u015bci procesor\u00f3w Intel \u015brednio o 16 % (po wy\u0142\u0105czeniu Hyper-Threadingu \u2013 a\u017c o 25 %). W przypadku procesor\u00f3w AMD Zen+ wydajno\u015b\u0107 przy tych samych warunkach spada jedynie o 3 %.<\/p>\n

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\n\"AMD<\/p>\n

Co gorsza: Apple i Google zalecaj\u0105<\/a><\/noindex> u\u017cytkownikom Intel ca\u0142kowite wy\u0142\u0105czenie Hyper-Threadingu, co mo\u017ce zmniejsza\u0107 wydajno\u015b\u0107 nawet o 40\u201350 % (w zale\u017cno\u015bci od zadania). Sama Intel nie zaleca tego robi\u0107<\/a><\/noindex> w wi\u0119kszo\u015bci przypadk\u00f3w, ale problem ten mo\u017ce okaza\u0107 si\u0119 szczeg\u00f3lnie krytyczny dla stacji roboczych, serwer\u00f3w i innych dziedzin wra\u017cliwych na wydajno\u015b\u0107 i bezpiecze\u0144stwo. W przypadku chip\u00f3w AMD wy\u0142\u0105czenie analogicznej technologii Simultaneous Multi-Threading nie jest wymagane. Dodatkowo, nap\u0142yw informacji o podatno\u015bciach, w tym o pr\u00f3bach Intel, by ukry\u0107 informacje<\/a><\/noindex> przed opini\u0105 publiczn\u0105, nie mo\u017ce nie wp\u0142ywa\u0107 na wizerunek tej ostatniej.<\/p>\n

Te wiadomo\u015bci przychodz\u0105 w szczeg\u00f3lnie z\u0142ym czasie dla Intela: AMD wkr\u00f3tce wypu\u015bci rodzin\u0119 nowoczesnych 7-nanometrowych procesor\u00f3w z architektur\u0105 Zen 2, przeznaczonych do zastosowa\u0144 desktopowych i serwerowych. Tymczasem Intel wci\u0105\u017c korzysta z bardzo starej (w kontek\u015bcie rozwoju technologii produkcji) 14-nanometrowej technologii i nie mo\u017ce uruchomi\u0107 masowej produkcji chip\u00f3w 10-nanometrowych. Wszystko to sprzyja AMD, kt\u00f3re w rezultacie z pewno\u015bci\u0105 b\u0119dzie nadal zwi\u0119ksza\u0107 swoje udzia\u0142y w rynku.<\/p>\n

\"AMD<\/p>\n

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\u0179r\u00f3d\u0142o: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412\u043e\u0442 \u0443\u0436\u0435 \u0431\u043e\u043b\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f Spectre \u0438 Meltdown \u0440\u044b\u043d\u043e\u043a \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u043b\u0438\u0445\u043e\u0440\u0430\u0434\u0438\u0442 \u043e\u0442 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0432\u0441\u0451 \u043d\u043e\u0432\u044b\u0445 \u0438 \u043d\u043e\u0432\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441\u043e \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u044b\u043c\u0438 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f\u043c\u0438. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u043d\u044b\u043c\u0438 \u0438\u043c, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u044e\u044e ZombieLoad, \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u0447\u0438\u043f\u044b Intel. \u041a\u043e\u043d\u0435\u0447\u043d\u043e, AMD \u043d\u0435 \u043f\u0440\u0435\u043c\u0438\u043d\u0443\u043b\u0430 \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u044d\u0442\u0438\u043c, \u0434\u0435\u043b\u0430\u044f \u0430\u043a\u0446\u0435\u043d\u0442 \u043d\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0441\u0432\u043e\u0438\u0445 \u0426\u041f. \u041d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435, \u043f\u043e\u0441\u0432\u044f\u0449\u0451\u043d\u043d\u043e\u0439 Spectre-\u043f\u043e\u0434\u043e\u0431\u043d\u044b\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u043c, \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f \u0433\u043e\u0440\u0434\u043e \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430: «\u041c\u044b \u0432 AMD […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25751,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-34126","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47AMD przed premier\u0105 Zen 2 og\u0142osi\u0142a bezpiecze\u0144stwo i odporno\u015b\u0107 swoich procesor\u00f3w na nowe ataki | ProHoster","description":"Min\u0119\u0142o ju\u017c ponad rok od odkrycia Spectre i Meltdown, a rynek procesor\u00f3w wci\u0105\u017c zmaga si\u0119 z nowymi i nowymi podatno\u015bciami 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