{"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\/fr\/blog\/news\/v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati","title":{"rendered":"Fedora 32 pr\u00e9voit d'inclure earlyoom pour une r\u00e9ponse rapide au manque de m\u00e9moire.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Publi\u00e9<\/a><\/noindex> plan<\/a><\/noindex> activation<\/a><\/noindex> par d\u00e9faut dans Fedora 32, processus en arri\u00e8re-plan earlyoom<\/a><\/noindex> pour une r\u00e9action pr\u00e9coce \u00e0 la p\u00e9nurie de m\u00e9moire dans le syst\u00e8me. Si la m\u00e9moire disponible est inf\u00e9rieure \u00e0 une valeur d\u00e9finie, earlyoom envoie un SIGTERM (m\u00e9moire libre inf\u00e9rieure \u00e0 10 %) ou un SIGKILL (< 5 %) pour forcer (terminer le processus consommant le plus de m\u00e9moire, ayant la valeur la plus \u00e9lev\u00e9e dans \/proc\/*\/oom_score), \u00e9vitant ainsi que l'\u00e9tat du syst\u00e8me n'atteigne la lib\u00e9ration des tampons syst\u00e8me. Earlyoom permettra de r\u00e9pondre plus rapidement \u00e0 la p\u00e9nurie de m\u00e9moire, sans atteindre le d\u00e9clenchement du gestionnaire OOM (Out Of Memory) dans le noyau, qui s'active lorsque la situation devient critique et que le syst\u00e8me ne r\u00e9pond g\u00e9n\u00e9ralement plus aux actions de l'utilisateur.<\/p>\n

Dans des versions ult\u00e9rieures de Fedora la possibilit\u00e9 est envisag\u00e9e<\/a><\/noindex> d'activer un gestionnaire de p\u00e9nurie de m\u00e9moire low-memory-monitor<\/a><\/noindex>, qui utilise l'interface apparue dans le noyau Linux 5.2<\/a><\/noindex> \/proc\/pressure\/memory pour \u00e9valuer la p\u00e9nurie de m\u00e9moire dans le syst\u00e8me, mais contrairement \u00e0 earlyoom, il ne termine pas imm\u00e9diatement les processus, mais envoie via DBus une notification de la n\u00e9cessit\u00e9 de r\u00e9duire la consommation de m\u00e9moire (si la situation ne se normalise pas apr\u00e8s cela, une activation peut \u00eatre envisag\u00e9e OOM Killer<\/a><\/noindex> du noyau). Low-memory-monitor n\u00e9cessite des modifications des applications, il est donc consid\u00e9r\u00e9 comme une solution pour le long terme, qui pourra \u00eatre d\u00e9ploy\u00e9e apr\u00e8s l'adaptation des applications GNOME. <\/p>\n

Pour suivre la situation de p\u00e9nurie de m\u00e9moire par les applications dans Glib 2.63.3<\/a><\/noindex> une API a \u00e9t\u00e9 ajout\u00e9e GMemoryMonitor<\/a><\/noindex>, permettant<\/a><\/noindex> de suivre les signaux du low-memory-monitor et de prendre des mesures (par exemple, l'application peut lib\u00e9rer de la m\u00e9moire utilis\u00e9e pour le cache, sauvegarder des fichiers, ex\u00e9cuter une collecte des ordures, tenter de r\u00e9duire la fragmentation de la m\u00e9moire ou terminer des processus secondaires inactifs). La prise en charge
\nde GMemoryMonitor a \u00e9galement \u00e9t\u00e9 ajout\u00e9e \u00e0 xdg-desktop-portal pour une utilisation dans des applications isol\u00e9es livr\u00e9es au format flatpak.<\/p>\n

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

Source : 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 […]<\/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\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\udd47Dans Fedora 32, earlyoom est pr\u00e9vu pour r\u00e9pondre rapidement \u00e0 la p\u00e9nurie de m\u00e9moire | 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