{"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\/news\/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. Questo rilascio porta notevoli miglioramenti nel Virtual Memory System, aggiornamenti per Radeon e TTM, oltre a miglioramenti nelle prestazioni di HAMMER2.<\/p>\n<p>DragonFly \u00e8 nato nel 2003 come un fork della versione 4 di FreeBSD. Tra le varie caratteristiche di questo sistema operativo, possiamo evidenziare le seguenti:<\/p>\n<ul>\n<li>\n<p>Il file system ad alte prestazioni HAMMER2 \u2013 supporta la scrittura su pi\u00f9 snapshot in parallelo, un sistema flessibile di quote (anche per le directory), mirror incrementali, compressione basata su vari algoritmi e mirror multi-master distribuito. \u00c8 in fase di sviluppo un meccanismo di clustering.<\/p>\n<\/li>\n<li>\n<p>Nucleo ibrido basato su thread leggeri con la possibilit\u00e0 di eseguire pi\u00f9 copie del nucleo come processi nello spazio utente.<\/p>\n<\/li>\n<\/ul>\n<p>Principali modifiche della versione<\/p>\n<ul>\n<li>\n<p>Sono state apportate numerose modifiche al sottosistema di memoria virtuale, aumentando significativamente le prestazioni, fino al 40-70% per alcune operazioni.<\/p>\n<\/li>\n<li>\n<p>Numerose modifiche nel driver DRM per Radeon e nel sottosistema di gestione della memoria video TTM per chip video AMD.<\/p>\n<\/li>\n<li>\n<p>Migliorata la performance del file system HAMMER2.<\/p>\n<\/li>\n<li>\n<p>Aggiunto supporto FUSE nello spazio utente.<\/p>\n<\/li>\n<li>\n<p>Implementata l'isolamento dei dati nella CPU tra il sistema e l'utente: SMAP (Supervisor Mode Access Prevention) e SMEP (Supervisor Mode Execution Prevention). \u00c8 necessaria la compatibilit\u00e0 della CPU per attivarli.<\/p>\n<\/li>\n<li>\n<p>Per i processori Intel \u00e8 stata implementata la protezione contro le classi di attacco MDS (Microarchitectural Data Sampling). \u00c8 disattivata per impostazione predefinita, necessitando di attivazione manuale. La protezione contro Spectre \u00e8 attivata 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 terzi 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-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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.\" \/>\n\t<meta name=\"robots\" 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