{"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\/fr\/blog\/news\/dragonfly-bsd-5-6-0","title":{"rendered":"DragonFly BSD 5.6.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Le 17 juin 2019, une version majeure de l syst\u00e8me d'exploitation DragonFly BSD a \u00e9t\u00e9 pr\u00e9sent\u00e9e - Release56. Cette version apporte des am\u00e9liorations significatives au syst\u00e8me de m\u00e9moire virtuelle, des mises \u00e0 jour pour Radeon et TTM, ainsi que des am\u00e9liorations des performances de HAMMER2.<\/p>\n<p>DragonFly a \u00e9t\u00e9 cr\u00e9\u00e9 en 2003 comme un fork de FreeBSD version 4. Parmi les nombreuses caract\u00e9ristiques de ce syst\u00e8me d'exploitation, on peut souligner les suivantes :<\/p>\n<ul>\n<li>\n<p>Le syst\u00e8me de fichiers haute performance HAMMER2 - prise en charge de l'\u00e9criture dans plusieurs instantan\u00e9s simultan\u00e9ment, un syst\u00e8me de quotas flexible (y compris pour les r\u00e9pertoires), une mise en miroir incr\u00e9mentielle, une compression bas\u00e9e sur diff\u00e9rents algorithmes, et une mise en miroir multi-ma\u00eetres r\u00e9partie. Un m\u00e9canisme de clustering est en cours de d\u00e9veloppement.<\/p>\n<\/li>\n<li>\n<p>Un noyau hybride bas\u00e9 sur des threads l\u00e9gers avec la capacit\u00e9 d'ex\u00e9cuter plusieurs copys du noyau en tant que processus dans l'espace utilisateur.<\/p>\n<\/li>\n<\/ul>\n<p>Principales modifications de la version<\/p>\n<ul>\n<li>\n<p>Un grand nombre de modifications ont \u00e9t\u00e9 apport\u00e9es \u00e0 la sous-syst\u00e8me de m\u00e9moire virtuelle, ce qui a consid\u00e9rablement am\u00e9lior\u00e9 les performances, allant jusqu'\u00e0 40-70 % sur certains types d'op\u00e9rations.<\/p>\n<\/li>\n<li>\n<p>De nombreux changements dans le pilote DRM pour Radeon et le sous-syst\u00e8me de gestion de la m\u00e9moire vid\u00e9o TTM pour les chipsets AMD.<\/p>\n<\/li>\n<li>\n<p>Am\u00e9lioration de la performance du syst\u00e8me de fichiers HAMMER2.<\/p>\n<\/li>\n<li>\n<p>Ajout du support FUSE dans l'espace utilisateur.<\/p>\n<\/li>\n<li>\n<p>Isolation des donn\u00e9es dans le CPU entre le syst\u00e8me et l'utilisateur : SMAP (Pr\u00e9vention d'Acc\u00e8s en Mode Supervisor) et SMEP (Pr\u00e9vention d'Ex\u00e9cution en Mode Supervisor). Leur activation n\u00e9cessite un support de la part du CPU.<\/p>\n<\/li>\n<li>\n<p>Pour les processeurs Intel, une protection contre la classe d'attaques MDS (Microarchitectural Data Sampling) a \u00e9t\u00e9 mise en \u0153uvre. Par d\u00e9faut, elle est d\u00e9sactiv\u00e9e, un activation manuelle est n\u00e9cessaire. La protection contre Spectre est activ\u00e9e par d\u00e9faut.<\/p>\n<\/li>\n<li>\n<p>La migration vers LibreSSL se poursuit.<\/p>\n<\/li>\n<li>\n<p>Les versions des composants tiers de l'OS ont \u00e9t\u00e9 mises \u00e0 jour.<\/p>\n<\/li>\n<\/ul>\n<p>Source : <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 5.0.2 - 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