{"id":138553,"date":"2025-06-30T11:11:59","date_gmt":"2025-06-30T09:11:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/ubuntu-budet-postavlyat-intel-compute-runtime-bez-zashhity-ot-spectre-snizhayushhej-proizvoditelnost-na-20"},"modified":"2025-06-30T11:11:59","modified_gmt":"2025-06-30T09:11:59","slug":"ubuntu-budet-postavlyat-intel-compute-runtime-bez-zashhity-ot-spectre-snizhayushhej-proizvoditelnost-na-20","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/ubuntu-budet-postavlyat-intel-compute-runtime-bez-zashhity-ot-spectre-snizhayushhej-proizvoditelnost-na-20","title":{"rendered":"Ubuntu fornir\u00e0 intel-compute-runtime senza la protezione contro Spectre, che riduce le prestazioni del 20%.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In Ubuntu \u00e8 stata presa la decisione di passare per impostazione predefinita alla fornitura del pacchetto intel-compute-runtime, compilato con l'opzione NEO_DISABLE_MITIGATIONS, che disabilit\u00e0 la protezione contro gli attacchi di tipo Spectre. Secondo le stime degli sviluppatori di Ubuntu, la presenza di tale protezione porta a una diminuzione delle prestazioni del pacchetto di circa il 20%.     <\/p>\n<p>Il pacchetto intel-compute-runtime include i componenti necessari per utilizzare OpenCL e OneAPI Level Zero sui sistemi con GPU Intel. Durante la compilazione delle librerie fornite nel pacchetto, la presenza del flag di compilazione NEO_DISABLE_MITIGATIONS disabilita nel compilatore le opzioni \u00ab-mretpoline -mindirect-branch=thunk -mfunction-return=thunk -mindirect-branch-register\u00bb, che forniscono ulteriore protezione contro Spectre. Queste opzioni non influiscono sulle prestazioni di OpenCL e delle operazioni lato GPU, ma riducono il sovraccarico nell'esecuzione del codice responsabile del funzionamento dell'API.      <\/p>\n<p>Gli ingegneri responsabili della sicurezza in Intel e Canonacal, durante una discussione, hanno concluso che non \u00e8 pi\u00f9 necessaria la protezione contro Spectre implementata a livello di Compute Runtime, poich\u00e9 la protezione necessaria \u00e8 gi\u00e0 presente a livello di kernel. La protezione attualmente disponibile in Compute Runtime \u00e8 di interesse principalmente per coloro che utilizzano i kernel senza una protezione adeguata, e i benefici derivati non compensano la riduzione delle prestazioni osservata. Inoltre, le versioni fornite da Intel di Intel Graphics Compute Runtime sono compilate impostando di default il flag NEO_DISABLE_MITIGATIONS, che disabilita la protezione.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63498\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 Ubuntu \u0440\u0435\u0448\u0435\u043d\u043e \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0443 \u043f\u0430\u043a\u0435\u0442\u0430 intel-compute-runtime, \u0441\u043e\u0431\u0440\u0430\u043d\u043d\u043e\u0433\u043e \u0441 \u0444\u043b\u0430\u0433\u043e\u043c NEO_DISABLE_MITIGATIONS, \u043e\u0442\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0438\u043c \u0437\u0430\u0449\u0438\u0442\u0443 \u043e\u0442 \u0430\u0442\u0430\u043a \u043a\u043b\u0430\u0441\u0441\u0430 Spectre. \u041f\u043e \u043e\u0446\u0435\u043d\u043a\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 Ubuntu \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043d\u0430 20%. \u041f\u0430\u043a\u0435\u0442 intel-compute-runtime \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f OpenCL \u0438 OneAPI Level Zero \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 GPU Intel. \u041f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 [&hellip;]<\/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-138553","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 Ubuntu \u0440\u0435\u0448\u0435\u043d\u043e \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043d\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0443 \u043f\u0430\u043a\u0435\u0442\u0430 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impostazione predefinita alla fornitura del pacchetto intel-compute-runtime, compilato con il flag NEO_DISABLE_MITIGATIONS, che disabilita la protezione contro gli attacchi di tipo Spectre. Secondo gli sviluppatori di Ubuntu, la presenza di tale protezione comporta una diminuzione delle prestazioni del pacchetto di circa il 20%. Il pacchetto intel-compute-runtime include i componenti necessari per utilizzare OpenCL e OneAPI Level Zero sui sistemi con GPU Intel.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/ubuntu-budet-postavlyat-intel-compute-runtime-bez-zashhity-ot-spectre-snizhayushhej-proizvoditelnost-na-20","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Ubuntu \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c intel-compute-runtime \u0431\u0435\u0437 \u0437\u0430\u0449\u0438\u0442\u044b 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\u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u0442 \u043a \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043d\u0430 20%. \u041f\u0430\u043a\u0435\u0442 intel-compute-runtime \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f OpenCL \u0438 OneAPI Level Zero \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 GPU Intel. \u041f\u0440\u0438 \u0441\u0431\u043e\u0440\u043a\u0435 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