{"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\/de\/blog\/novosti-interneta\/ubuntu-budet-postavlyat-intel-compute-runtime-bez-zashhity-ot-spectre-snizhayushhej-proizvoditelnost-na-20","title":{"rendered":"Ubuntu wird intel-compute-runtime ohne Spectre-Schutz liefern, was die Leistung um 20 % verringert.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In Ubuntu wurde beschlossen, standardm\u00e4\u00dfig das Paket intel-compute-runtime mit der Flagge NEO_DISABLE_MITIGATIONS zu liefern, das den Schutz vor Spectre-Angriffen deaktiviert. Laut den Sch\u00e4tzungen der Ubuntu-Entwickler f\u00fchrt der Schutz zu einem Leistungsr\u00fcckgang des Pakets von etwa 20 %. <\/p>\n

Das Intel-Compute-Runtime-Paket enth\u00e4lt die erforderlichen Komponenten f\u00fcr die Nutzung von OpenCL und OneAPI Level Zero auf Systemen mit Intel-GPU. Bei der Erstellung der im Paket enthaltenen Bibliotheken f\u00fchrt die Verwendung des Build-Flags NEO_DISABLE_MITIGATIONS zur Deaktivierung der Compiler-Optionen -mretpoline -mindirect-branch=thunk -mfunction-return=thunk -mindirect-branch-register<\/span>, die zus\u00e4tzlichen Schutz vor Spectre bieten. Diese Optionen haben keinen Einfluss auf die Leistung von OpenCL und GPU-seitigen Operationen, verringern jedoch die Overhead-Kosten bei der Ausf\u00fchrung des Codes, der f\u00fcr die API-Interaktion verantwortlich ist. <\/p>\n

Die Sicherheitsingenieure von Intel und Canonical sind zu dem Schluss gekommen, dass der Schutz gegen Spectre, der auf der Ebene des Compute Runtime implementiert ist, nicht mehr erforderlich ist, da der notwendige Schutz bereits auf der Kernel-Ebene vorhanden ist. Der Schutz gegen Spectre in Compute Runtime ist haupts\u00e4chlich f\u00fcr diejenigen von Interesse, die Kerne ohne angemessenen Schutz verwenden, und der Nutzen \u00fcberwiegt nicht die beobachtete Verringerung der Leistung. Dar\u00fcber hinaus werden die von Intel bereitgestellten Versionen des Intel Graphics Compute Runtime standardm\u00e4\u00dfig mit dem Flag NEO_DISABLE_MITIGATIONS kompiliert, das den Schutz deaktiviert.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 […]<\/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\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\udd47Ubuntu wird die intel-compute-runtime ohne Spectre-Schutz liefern, was die Leistung um 20 % verringert | ProHoster","description":"In Ubuntu wurde beschlossen, standardm\u00e4\u00dfig das Paket intel-compute-runtime auszuliefern, das mit dem Flag NEO_DISABLE_MITIGATIONS kompiliert ist, welches den Schutz vor Spectre-Angriffen deaktiviert. Laut den Entwicklern von Ubuntu f\u00fchrt das Vorhandensein eines solchen Schutzes zu einer Leistungseinbu\u00dfe von etwa 20 %. Das Paket intel-compute-runtime enth\u00e4lt die Komponenten, die zur Verwendung von OpenCL und OneAPI Level Zero auf Systemen mit Intel-GPU erforderlich sind. 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\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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