{"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\/pl\/blog\/news\/v-fedora-32-namereny-vklyuchit-earlyoom-dlya-rannego-reagirovaniya-na-nehvatku-pamyati","title":{"rendered":"W Fedora 32 planuj\u0105 wprowadzenie earlyoom do wczesnej reakcji na niedob\u00f3r pami\u0119ci","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Opublikowano<\/a><\/noindex> plan<\/a><\/noindex> w\u0142\u0105czenia<\/a><\/noindex> domy\u015blnie w Fedora 32 procesu w tle earlyoom<\/a><\/noindex> w celu szybkiej reakcji na niedob\u00f3r pami\u0119ci w systemie. Je\u015bli dost\u0119pna pami\u0119\u0107 spadnie poni\u017cej okre\u015blonej warto\u015bci, earlyoom wymusi zako\u0144czenie procesu, kt\u00f3ry najbardziej intensywnie zu\u017cywa pami\u0119\u0107 (maj\u0105cego najwy\u017csz\u0105 warto\u015b\u0107 w \/proc\/*\/oom_score), wysy\u0142aj\u0105c SIGTERM (je\u015bli wolna pami\u0119\u0107 spadnie poni\u017cej 10%) lub SIGKILL (< 5%), nie doprowadzaj\u0105c stanu systemu do oczyszczenia bufor\u00f3w. Earlyoom pozwoli na szybsz\u0105 reakcj\u0119 na niedob\u00f3r pami\u0119ci, zanim dojdzie do wywo\u0142ania obs\u0142ugi OOM (Out Of Memory) w j\u0105drze, kt\u00f3ra uruchamia si\u0119, gdy sytuacja staje si\u0119 krytyczna, a system zazwyczaj przestaje reagowa\u0107 na dzia\u0142ania u\u017cytkownika.<\/p>\n

W dalszych wydaniach Fedora rozwa\u017cane jest<\/a><\/noindex> w\u0142\u0105czenie obs\u0142ugi niedoboru pami\u0119ci low-memory-monitor<\/a><\/noindex>, kt\u00f3ra wykorzystuje nowy interfejs w j\u0105drze Linux 5.2<\/a><\/noindex> \/proc\/pressure\/memory do oceny niedoboru pami\u0119ci w systemie, ale w przeciwie\u0144stwie do earlyoom nie ko\u0144czy od razu proces\u00f3w, lecz wysy\u0142a powiadomienie przez DBus o konieczno\u015bci zmniejszenia u\u017cycia pami\u0119ci (je\u015bli po tym sytuacja si\u0119 nie poprawi, mo\u017cliwa jest aktywacja OOM Killer<\/a><\/noindex> j\u0105dra). Low-memory-monitor wymaga modyfikacji aplikacji, dlatego uwa\u017cany jest za rozwi\u0105zanie na dalsz\u0105 przysz\u0142o\u015b\u0107, kt\u00f3re mo\u017cna b\u0119dzie wdro\u017cy\u0107 po dostosowaniu aplikacji GNOME. <\/p>\n

Aby monitorowa\u0107 sytuacj\u0119 niedoboru pami\u0119ci w aplikacjach, w Glib 2.63.3<\/a><\/noindex> dodano API GMemoryMonitor<\/a><\/noindex>, umo\u017cliwiaj\u0105ce<\/a><\/noindex> do \u015bledzenia sygna\u0142\u00f3w z low-memory-monitor i podejmowania dzia\u0142a\u0144 (np. aplikacja mo\u017ce zwolni\u0107 pami\u0119\u0107 u\u017cywan\u0105 do buforowania, zapisa\u0107 pliki, uruchomi\u0107 zbieranie \u015bmieci, pr\u00f3bowa\u0107 zmniejszy\u0107 fragmentacj\u0119 pami\u0119ci lub zako\u0144czy\u0107 nieaktywne procesy pomocnicze). Wsparcie dla
\nGMemoryMonitor zosta\u0142o r\u00f3wnie\u017c dodane do xdg-desktop-portal do u\u017cycia w izolowanych aplikacjach dostarczanych w formacie flatpak.<\/p>\n

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

\u0179r\u00f3d\u0142o: 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\udd47W Fedora 32 planuj\u0105 wprowadzenie earlyoom do szybkiej reakcji na niedob\u00f3r pami\u0119ci | 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