{"id":35408,"date":"2019-10-31T22:04:10","date_gmt":"2019-10-31T19:04:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/dragonfly-bsd-5-6-0\/"},"modified":"2019-10-31T22:04:10","modified_gmt":"2019-10-31T19:04:10","slug":"dragonfly-bsd-5-6-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/dragonfly-bsd-5-6-0","title":{"rendered":"DragonFly BSD 5.6.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Em 17 de junho de 2019, foi apresentada uma vers\u00e3o significativa do sistema operacional DragonFly BSD \u2013 Release56. Esta vers\u00e3o traz melhorias significativas no Sistema de Mem\u00f3ria Virtual, atualiza\u00e7\u00f5es para Radeon e TTM, al\u00e9m de melhorias de desempenho no HAMMER2.<\/p>\n<p>O DragonFly foi criado em 2003 como um desdobramento do FreeBSD vers\u00e3o 4. Entre as muitas caracter\u00edsticas deste sistema operacional, podemos destacar as seguintes:<\/p>\n<ul>\n<li>\n<p>O sistema de arquivos de alto desempenho HAMMER2 \u2013 suporta grava\u00e7\u00e3o em m\u00faltiplos snapshots simultaneamente, um sistema flex\u00edvel de quotas (incluindo para diret\u00f3rios), espelhamento incremental, compress\u00e3o baseada em diferentes algoritmos e espelhamento multi-master distribu\u00eddo. Um mecanismo de clusteriza\u00e7\u00e3o est\u00e1 em desenvolvimento.<\/p>\n<\/li>\n<li>\n<p>N\u00facleo h\u00edbrido baseado em threads leves com a possibilidade de executar m\u00faltiplas c\u00f3pias do n\u00facleo como processos no espa\u00e7o do usu\u00e1rio.<\/p>\n<\/li>\n<\/ul>\n<p>Principais altera\u00e7\u00f5es da vers\u00e3o<\/p>\n<ul>\n<li>\n<p>Foram feitas in\u00fameras altera\u00e7\u00f5es no subsistema de mem\u00f3ria virtual, o que aumentou significativamente o desempenho, de at\u00e9 40-70% em tipos espec\u00edficos de opera\u00e7\u00f5es.<\/p>\n<\/li>\n<li>\n<p>Diversas altera\u00e7\u00f5es no driver DRM para Radeon e no subsistema de gerenciamento de mem\u00f3ria de v\u00eddeo TTM para chips gr\u00e1ficos AMD.<\/p>\n<\/li>\n<li>\n<p>Aumentada a performance do sistema de arquivos HAMMER2.<\/p>\n<\/li>\n<li>\n<p>Suporte para FUSE no espa\u00e7o do usu\u00e1rio foi adicionado.<\/p>\n<\/li>\n<li>\n<p>Isolamento de dados no CPU entre o sistema e o usu\u00e1rio foi implementado: SMAP (Supervisor Mode Access Prevention) e SMEP (Supervisor Mode Execution Prevention). Para ativ\u00e1-los, \u00e9 necess\u00e1rio suporte do lado do CPU.<\/p>\n<\/li>\n<li>\n<p>Uma prote\u00e7\u00e3o contra ataques da classe MDS (Microarchitectural Data Sampling) foi implementada para processadores Intel. Por padr\u00e3o, est\u00e1 desativada e requer habilita\u00e7\u00e3o manual. A prote\u00e7\u00e3o contra Spectre est\u00e1 habilitada por padr\u00e3o.<\/p>\n<\/li>\n<li>\n<p>A migra\u00e7\u00e3o para o LibreSSL continua.<\/p>\n<\/li>\n<li>\n<p>As vers\u00f5es de componentes de terceiros do sistema operacional foram atualizadas.<\/p>\n<\/li>\n<\/ul>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/bsd\/15058519\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>17 \u0438\u044e\u043d\u044f 2019 \u0433\u043e\u0434\u0430 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b DragonFly BSD &ndash; Release56. \u0412\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u0438\u0432\u043d\u043e\u0441\u0438\u0442 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f \u0432 Virtual Memory System, \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f Radeon \u0438 TTM, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 HAMMER2. DragonFly \u0432 2003 \u0433\u043e\u0434\u0443 \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043b\u0430\u0441\u044c \u043a\u0430\u043a \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 FreeBSD 4-\u0439 \u0432\u0435\u0440\u0441\u0438\u0438. \u0418\u0437 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 \u044d\u0442\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0435: \u0412\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0444\u0430\u0439\u043b\u043e\u0432\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 HAMMER2 [&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-35408","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"17 \u0438\u044e\u043d\u044f 2019 \u0433\u043e\u0434\u0430 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b DragonFly BSD \u2013 Release56.\" \/>\n\t<meta name=\"robots\" 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