{"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\/it\/blog\/novosti-interneta\/dragonfly-bsd-5-6-0","title":{"rendered":"DragonFly BSD 5.6.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Il 17 giugno 2019 \u00e8 stata presentata la significativa release del sistema operativo DragonFly BSD \u2013 Release56. Questa versione introduce importanti miglioramenti al sistema di memoria virtuale, aggiornamenti per Radeon e TTM, e miglioramenti delle prestazioni di HAMMER2.<\/p>\n<p>DragonFly \u00e8 nato nel 2003 come un fork della versione 4 di FreeBSD. Tra le molte caratteristiche di questo sistema operativo, si possono evidenziare le seguenti:<\/p>\n<ul>\n<li>\n<p>Il file system ad alte prestazioni HAMMER2 \u2013 supporto per la scrittura su pi\u00f9 snapshot in parallelo, sistema di quote flessibile (incluso per le directory), mirroring incrementale, compressione basata su vari algoritmi, mirroring multi-master distribuito. \u00c8 in fase di sviluppo un meccanismo di clustering.<\/p>\n<\/li>\n<li>\n<p>Un kernel ibrido basato su thread leggeri con la possibilit\u00e0 di eseguire pi\u00f9 copie del kernel come processi nello spazio utente.<\/p>\n<\/li>\n<\/ul>\n<p>Principali cambiamenti della versione<\/p>\n<ul>\n<li>\n<p>Sono state apportate numerose modifiche al sottosistema della memoria virtuale, che hanno notevolmente aumentato le prestazioni, fino al 40-70% in alcuni tipi di operazioni.<\/p>\n<\/li>\n<li>\n<p>Numerosi cambiamenti nel driver DRM per Radeon e nel sottosistema di gestione della memoria video TTM per le schede grafiche AMD.<\/p>\n<\/li>\n<li>\n<p>Le prestazioni del file system HAMMER2 sono state migliorate.<\/p>\n<\/li>\n<li>\n<p>\u00c8 stata aggiunta la supporto FUSE nello spazio utente.<\/p>\n<\/li>\n<li>\n<p>\u00c8 stata implementata l'isolamento dei dati nella CPU tra sistema e utente: SMAP (Supervisor Mode Access Prevention) e SMEP (Supervisor Mode Execution Prevention). Per attivarli \u00e8 necessaria la supporto da parte della CPU.<\/p>\n<\/li>\n<li>\n<p>Per i processori Intel \u00e8 stata implementata la protezione contro le vulnerabilit\u00e0 di tipo MDS (Microarchitectural Data Sampling). Di default \u00e8 disattivata, \u00e8 necessario attivarla manualmente. La protezione contro Spectre \u00e8 abilitata di default.<\/p>\n<\/li>\n<li>\n<p>Continua la migrazione a LibreSSL.<\/p>\n<\/li>\n<li>\n<p>Aggiornate le versioni dei componenti di terze parti del sistema operativo.<\/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-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - 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. \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. 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