{"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\/it\/blog\/news\/v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati","title":{"rendered":"In Fedora 32 hanno intenzione di includere earlyoom per una reazione anticipata alla mancanza di memoria","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/devel-announce@lists.fedoraproject.org\/msg02139.html\">Pubblicato<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/fedoraproject.org\/wiki\/Changes\/EnableEarlyoom\">piano<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/pagure.io\/fedora-workstation\/issue\/119\">attivazione<\/a><\/noindex> predefinito in Fedora 32 per il processo in background <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/rfjakob\/earlyoom\">earlyoom<\/a><\/noindex> per una reazione rapida alla mancanza di memoria nel sistema. Se la quantit\u00e0 di memoria disponibile \u00e8 inferiore a un valore specificato, earlyoom tramite l'invio di SIGTERM (memoria libera inferiore al 10%) o SIGKILL (&lt; 5%) termina forzatamente (chiuder\u00e0 il processo che consuma pi\u00f9 memoria (con il valore pi\u00f9 alto in \/proc\/*\/oom_score), senza portare il sistema a pulire i buffer di sistema. Earlyoom consentir\u00e0 di rispondere pi\u00f9 rapidamente alla mancanza di memoria, senza arrivare a invocare il gestore OOM (Out Of Memory) nel kernel, che interviene quando la situazione diventa critica e il sistema, di norma, non risponde pi\u00f9 alle azioni dell&#039;utente.<\/p>\n<p>Nelle versioni future di Fedora <noindex><a rel=\"nofollow\" href=\"https:\/\/pagure.io\/fedora-workstation\/issue\/98\">si sta considerando la possibilit\u00e0<\/a><\/noindex> di attivare il gestore della mancanza di memoria <noindex><a rel=\"nofollow\" href=\"https:\/\/gitlab.freedesktop.org\/hadess\/low-memory-monitor\/\">low-memory-monitor<\/a><\/noindex>, che utilizza l'interfaccia apparsa nel kernel Linux <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51051\">5.2<\/a><\/noindex> il percorso \/proc\/pressure\/memory per valutare la mancanza di memoria nel sistema, ma a differenza di earlyoom non termina immediatamente i processi, ma invia tramite DBus una notifica sulla necessit\u00e0 di ridurre il consumo di memoria (se dopo ci\u00f2 la situazione non si normalizza, \u00e8 possibile attivare <noindex><a rel=\"nofollow\" href=\"https:\/\/gitlab.freedesktop.org\/hadess\/low-memory-monitor\/#kernel-out-of-memory-killer\">l'OOM Killer<\/a><\/noindex> del kernel). Low-memory-monitor richiede modifiche alle applicazioni, quindi \u00e8 considerato come una soluzione per un futuro remoto, che potr\u00e0 essere implementata dopo l'adattamento delle applicazioni GNOME.  <\/p>\n<p>Per monitorare la situazione della mancanza di memoria nelle applicazioni in Glib <noindex><a rel=\"nofollow\" href=\"https:\/\/gitlab.gnome.org\/GNOME\/glib\/-\/tags\/2.63.3\">2.63.3<\/a><\/noindex>  \u00e8 stata aggiunta un'API <noindex><a rel=\"nofollow\" href=\"https:\/\/developer.gnome.org\/gio\/2.63\/GMemoryMonitor.html\">GMemoryMonitor<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.hadess.net\/2019\/12\/gmemorymonitor-low-memory-monitor-2nd.html\">consentendo<\/a><\/noindex> per monitorare i segnali dal low-memory-monitor e prendere misure (ad esempio, l'applicazione pu\u00f2 liberare memoria utilizzata per la cache, salvare file, avviare la raccolta dei rifiuti, tentare di ridurre la frammentazione della memoria o chiudere processi ausiliari inattivi). Il supporto<br \/>\nGMemoryMonitor \u00e8 stato aggiunto anche a xdg-desktop-portal per l'uso in applicazioni isolate fornite in formato flatpak.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52136\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 (&lt; 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 [&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-54854","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\" 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