{"id":54854,"date":"2020-01-06T00:00:00","date_gmt":"2020-01-05T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati"},"modified":"2020-02-18T14:02:54","modified_gmt":"2020-02-18T11:02:54","slug":"v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati","title":{"rendered":"Fedora 32-s plaanitakse sisse l\u00fclitada earlyoom m\u00e4lu puuduse ennetamiseks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Avaldatud<\/a><\/noindex> plaan<\/a><\/noindex> k\u00e4ivitamine<\/a><\/noindex> vaikes\u00e4tete Fedora 32 taustprotsessile earlyoom<\/a><\/noindex> ennetavaks reageerimiseks s\u00fcsteemi m\u00e4lupuudusele. Kui saadaval m\u00e4lu kogus on v\u00e4iksem kui m\u00e4\u00e4ratud v\u00e4\u00e4rtus, l\u00f5petab earlyoom protsessi, mis k\u00f5ige rohkem m\u00e4lu kasutab, saates SIGTERM (vaba m\u00e4lu alla 10%) v\u00f5i SIGKILL (< 5%), ilma et s\u00fcsteemi seisund j\u00f5uaks s\u00fcsteemi puhverserverite t\u00fchjendamise olukorda. Earlyoom v\u00f5imaldab kiiremini reageerida m\u00e4lupuudusele, j\u00f5udmata OOM (Out Of Memory) t\u00f6\u00f6tleja aktiveerimiseni s\u00fcdamikus, mis aktiveerub kriitilises olukorras, mil s\u00fcsteem enamasti enam ei reageeri kasutaja toimingutele.<\/p>\n

Hiljemates Fedora v\u00e4ljaannetes kaalutakse v\u00f5imalust<\/a><\/noindex> m\u00e4lupuuduse t\u00f6\u00f6tleja sissel\u00fclitamiseks low-memory-monitor<\/a><\/noindex>, mis kasutab Linuxi s\u00fcdamiku uut liidest 5.2<\/a><\/noindex> interfeissi \/proc\/pressure\/memory s\u00fcsteemis m\u00e4lupuuduse hindamiseks, kuid erinevalt earlyoom'ist ei l\u00f5petada protsesse kohe, vaid saadab DBus'i kaudu teate m\u00e4lu tarbimise v\u00e4hendamise vajadusest (kui olukord ei normaliseeru, on v\u00f5imalik aktiveerida OOM Killer<\/a><\/noindex> s\u00fcdamikku). Low-memory-monitor vajab rakenduste modifitseerimist, mist\u00f5ttu kaalutakse seda pikaajalise lahenduse lahendusena, mida saab rakendada p\u00e4rast GNOME rakenduste kohandamist. <\/p>\n

Rakenduste m\u00e4lupuuduse j\u00e4lgimiseks Glib's 2.63.3<\/a><\/noindex> on lisatud API GMemoryMonitor<\/a><\/noindex>, mis v\u00f5imaldab<\/a><\/noindex> j\u00e4lgima signaale low-memory-monitor'ilt ja astuma samme (n\u00e4iteks rakendus v\u00f5ib vabastada m\u00e4luruumi, mis on kasutusel vahem\u00e4llu, salvestada faile, k\u00e4ivitada pr\u00fcgi kogumise, proovida v\u00e4hendada m\u00e4lufragmenteerimist v\u00f5i l\u00f5petada ootavad abiprotsessid). Tugi
\nGMemoryMonitor'ile on samuti lisatud xdg-desktop-portal'i, et kasutada isoleeritud rakendustes, mis on pakendatud flatpak formaadis.<\/p>\n

<\/a><\/noindex><\/p>\n

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

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043b\u0430\u043d \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432 Fedora 32 \u0444\u043e\u043d\u043e\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 earlyoom \u0434\u043b\u044f \u0440\u0430\u043d\u043d\u0435\u0433\u043e \u0440\u0435\u0430\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0430 \u043d\u0435\u0445\u0432\u0430\u0442\u043a\u0443 \u043f\u0430\u043c\u044f\u0442\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u0415\u0441\u043b\u0438 \u043e\u0431\u044a\u0451\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u043c\u0435\u043d\u044c\u0448\u0435 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f, \u0442\u043e earlyoom \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 SIGTERM (\u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u043c\u0435\u043d\u044c\u0448\u0435 10%) \u0438\u043b\u0438 SIGKILL (< 5%) \u043f\u0440\u0438\u043d\u0443\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e (\u0437\u0430\u0432\u0435\u0440\u0448\u0438\u0442 \u0440\u0430\u0431\u043e\u0442\u0443 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430, \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0430\u043a\u0442\u0438\u0432\u043d\u043e \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u043f\u0430\u043c\u044f\u0442\u044c (\u0438\u043c\u0435\u044e\u0449\u0435\u0433\u043e \u0441\u0430\u043c\u043e\u0435 \u0431\u043e\u043b\u044c\u0448\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \/proc\/*\/oom_score), \u043d\u0435 \u0434\u043e\u0432\u043e\u0434\u044f \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 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