{"id":99809,"date":"2021-04-15T10:22:49","date_gmt":"2021-04-15T08:22:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-google-predstavila-patchi-mnogourovnevogo-lru-dlya-linux"},"modified":"2021-04-15T10:22:49","modified_gmt":"2021-04-15T08:22:49","slug":"kompaniya-google-predstavila-patchi-mnogourovnevogo-lru-dlya-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/kompaniya-google-predstavila-patchi-mnogourovnevogo-lru-dlya-linux","title":{"rendered":"A Google apresentou patches de LRU em m\u00faltiplas camadas para Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A empresa Google apresentou corre\u00e7\u00f5es com uma implementa\u00e7\u00e3o aprimorada do mecanismo LRU para Linux. O LRU (Least Recently Used) \u00e9 um mecanismo que permite descartar ou mover para swap p\u00e1ginas de mem\u00f3ria n\u00e3o utilizadas. Segundo a Google, a implementa\u00e7\u00e3o atual do mecanismo para determinar quais p\u00e1ginas devem ser desalocadas cria uma carga excessiva no CPU e frequentemente toma decis\u00f5es ruins sobre quais p\u00e1ginas descarregar. <\/p>\n

Nos experimentos realizados pela empresa, a nova implementa\u00e7\u00e3o do LRU reduziu o n\u00famero de finaliza\u00e7\u00f5es for\u00e7adas de programas devido \u00e0 falta de mem\u00f3ria no sistema (OOM kill) em 18%, enquanto no Chrome OS houve uma redu\u00e7\u00e3o de 96% no n\u00famero de abas do navegador descartadas devido \u00e0 falta de mem\u00f3ria, e uma diminui\u00e7\u00e3o de 59% nas OOM kills em dispositivos sobrecarregados. Esta \u00e9 a segunda vers\u00e3o dos patches, que resolveu a regress\u00e3o de desempenho e outras falhas observadas durante os testes.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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LRU (Least Recently User) — \u044d\u0442\u043e \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u043e\u0442\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u0442\u044c \u0438\u043b\u0438 \u0432\u044b\u0433\u0440\u0443\u0436\u0430\u0442\u044c \u0432 \u0441\u0432\u043e\u043f \u043d\u0435\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0435 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u044b \u043f\u0430\u043c\u044f\u0442\u0438. \u041f\u043e \u043c\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0446\u0438\u0438 Google, \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0432\u044b\u0442\u0435\u0441\u043d\u044f\u0435\u043c\u044b\u0445 \u0441\u0442\u0440\u0430\u043d\u0438\u0446 \u0441\u043e\u0437\u0434\u0430\u0451\u0442 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0432\u044b\u0441\u043e\u043a\u0443\u044e \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043d\u0430 CPU, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0447\u0430\u0441\u0442\u043e \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u043d\u0435\u0443\u0434\u0430\u0447\u043d\u044b\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u044f, \u043a\u0430\u043a\u0438\u0435 \u0438\u043c\u0435\u043d\u043d\u043e \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u044b \u0432\u044b\u0433\u0440\u0443\u0436\u0430\u0442\u044c. \u0412 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\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-99809","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\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\udd47A Google apresentou patches de LRU em camadas para Linux | ProHoster","description":"A Google apresentou patches com uma implementa\u00e7\u00e3o aprimorada do mecanismo LRU para Linux. 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