{"id":72824,"date":"2020-03-04T14:42:25","date_gmt":"2020-03-04T11:42:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8"},"modified":"2020-03-04T14:42:25","modified_gmt":"2020-03-04T11:42:25","slug":"reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8","title":{"rendered":"Lansering av operativsystemet DragonFly BSD 5.8","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"http:\/\/lists.dragonflybsd.org\/pipermail\/users\/2020-March\/358432.html\">Tillg\u00e4nglig<\/a><\/noindex>  utgivning <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dragonflybsd.org\/\">DragonFlyBSD 5.8<\/a><\/noindex>, ett operativsystem med ett hybridkernel, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=2717\">skapad<\/a><\/noindex> \u00e5r 2003 f\u00f6r att alternativt utveckla grenen FreeBSD 4.x. Bland de s\u00e4rskilda egenskaperna hos DragonFly BSD finns en distribuerad versionskontrollfilssystem <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.opennet.ru\/HAMMER\">HAMMER<\/a><\/noindex>, st\u00f6d f\u00f6r laddning av &#171;virtuella&#187; k\u00e4rnor i systemet som anv\u00e4ndarprocesser, m\u00f6jlighet till caching av data och metadata p\u00e5 SSD-enheter, kontextmedvetna symboliska l\u00e4nkar, m\u00f6jlighet att frysa processer med bevarande av deras tillst\u00e5nd p\u00e5 disken, hybridk\u00e4rna som anv\u00e4nder l\u00e4tta tr\u00e5dar (LWKT). <\/p>\n<p>Huvud <noindex><a rel=\"nofollow\" href=\"http:\/\/www.dragonflybsd.org\/release58\/\">f\u00f6rb\u00e4ttringar<\/a><\/noindex>, tillagda i DragonFlyBSD 5.8: <\/p>\n<ul>\n<li class=\"l\"> Det huvudsakliga inneh\u00e5llet inkluderar verktyget <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dragonflybsd.org\/cgi\/web-man?command=dsynth\u00a7ion=1\">dsynth<\/a><\/noindex>, avsett f\u00f6r lokal kompilering och underh\u00e5ll av egna bin\u00e4ra DPort-repositorier. Samtidigt st\u00f6ds parallellisering av kompileringen av valfritt antal portar, med h\u00e4nsyn till beroendetr\u00e4det. I f\u00f6rberedelserna f\u00f6r en ny utg\u00e5va i DPort har ett stort antal \u00e4ndringar ocks\u00e5 gjorts f\u00f6r att p\u00e5skynda kompileringen av flera beroende paket.\n<li class=\"l\"> I libc har en effektiv signalmaskering implementerats, vilket skyddat malloc*() och liknande funktioner fr\u00e5n problem p\u00e5 grund av avbrott av signaler. F\u00f6r kortsiktig blockering och uppl\u00e5sning av signaler f\u00f6resl\u00e5s funktionerna sigblockall() och sigunblockall(), som fungerar utan systemanrop. Dessutom har funktionen strtok() i libc anpassats f\u00f6r anv\u00e4ndning i flertr\u00e5diga applikationer, n\u00e5gra konstanter s\u00e5som TABDLY, TAB0, TAB3 och funktionen __errno_location har lagts till f\u00f6r att f\u00f6rb\u00e4ttra st\u00f6d f\u00f6r dports.\n<li class=\"l\"> DRM (Direct Rendering Manager) komponenterna \u00e4r synkroniserade med Linux-k\u00e4rnan 4.9 med portering av vissa funktioner fr\u00e5n k\u00e4rnan 4.12, inriktad p\u00e5 att f\u00f6rb\u00e4ttra st\u00f6det f\u00f6r Wayland.<br \/>\ndrm\/i915-drivrutinen f\u00f6r Intel GPU \u00e4r synkroniserad med Linux-k\u00e4rnan 4.8.17 och har flyttat kod fr\u00e5n k\u00e4rnan 5.4 f\u00f6r att st\u00f6dja nya chip (Skylake, Coffeelake, Amber Lake, Whiskey Lake och Comet Lake). drms\/radeon-drivrutinen f\u00f6r AMD grafikkort \u00e4r synkroniserad med Linux-k\u00e4rnan 4.9.<\/p>\n<li class=\"l\"> Algoritmerna f\u00f6r virtual memory-swapping har f\u00f6rb\u00e4ttrats avsev\u00e4rt, vilket eliminerar eller minimerar problem med anv\u00e4ndargr\u00e4nssnittets responsivitet vid brist p\u00e5 minne. Problem med hangs i Chrome\/Chromium vid otillr\u00e4ckligt systemminne har \u00e5tg\u00e4rdats.\n<li class=\"l\"> F\u00f6rb\u00e4ttrad skalning av k\u00e4rnan p\u00e5 system med ett stort antal processor k\u00e4rnor. Tiden f\u00f6r sidan f\u00f6r fr\u00e5ga av virtuellt minne har kortats. Konkurrensen f\u00f6r SMP har minskat under minnesbrist. Effektiviteten f\u00f6r anropet &#171;open(&#8230; O_RDWR)&#187; har \u00f6kat.\n<li class=\"l\"> Omdesignad pseudorandomgenerator i k\u00e4rnan. RDRAND-drivrutinen anpassad f\u00f6r att samla entropi fr\u00e5n alla CPU:er. Minskad intensitet<br \/>\n och storlek p\u00e5 RDRAND-fodringen, som tidigare tog 2-3% CPU-tid under inaktivitet.<\/p>\n<li class=\"l\"> Nya systemanrop realpath, getrandom och lwp_getname har lagts till (m\u00f6jliggjorde implementeringen av pthread_get_name_np).\n<li class=\"l\"> St\u00f6d f\u00f6r skyddsmekanismerna SMAP (Supervisor Mode Access Prevention) och SMEP (Supervisor Mode Execution Prevention) har lagts till. SMAP till\u00e5ter att blockera \u00e5tkomst till data i anv\u00e4ndarens minnesutrymme fr\u00e5n privilegierad kod som k\u00f6rs p\u00e5 k\u00e4rnniv\u00e5. SMEP f\u00f6rhindrar \u00f6verg\u00e5ng fr\u00e5n k\u00e4rnl\u00e4ge till utf\u00f6rande av kod som finns p\u00e5 anv\u00e4ndarniv\u00e5, vilket m\u00f6jligg\u00f6r att blockera utnyttjande av m\u00e5nga s\u00e5rbarheter i k\u00e4rnan (shell-kod kommer inte att k\u00f6ras, eftersom den finns i anv\u00e4ndarens minnesutrymme);\n<li class=\"l\"> Sysctl-variabler f\u00f6r konfigurering av Jail har omarbetats. M\u00f6jlighet att montera nullfs och tmpfs fr\u00e5n Jail har lagts till.\n<li class=\"l\"> Ett n\u00f6dl\u00e4gesl\u00e4ge f\u00f6r filsystemet HAMMER2 har lagts till, som kan anv\u00e4ndas under \u00e5terst\u00e4llning efter fel. I detta l\u00e4ge till\u00e5ts f\u00f6rst\u00f6relse av snapshots vid uppdatering av inode p\u00e5 plats (m\u00f6jligg\u00f6r att ta bort filer och kataloger n\u00e4r det inte finns tillr\u00e4ckligt med ledigt diskutrymme, n\u00e4r mekanismen copy-on-write inte kan anv\u00e4ndas). Prestandan har betydligt f\u00f6rb\u00e4ttrats tack vare omarbetning av st\u00f6d f\u00f6r tr\u00e5dhantering i HAMMER2. Processen f\u00f6r att t\u00f6mma buffrar (flush) har betydligt f\u00f6rb\u00e4ttrats.\n<li class=\"l\"> Tillf\u00f6rlitligheten och prestandan hos TMPFS har \u00f6kat. Effektiviteten i situationer med otillr\u00e4ckligt ledigt minne i systemet har \u00f6kat.\n<li class=\"l\"> St\u00f6det f\u00f6r prefixer \/31 har implementerats i n\u00e4tverksstacken f\u00f6r IPv4 (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc3021\">RFC 3021<\/a><\/noindex>).<br \/>\n I tap har hanteringen av ioctl SIOCSIFMTU f\u00f6rb\u00e4ttrats f\u00f6r att st\u00f6dja MTU &gt; 1500. St\u00f6d f\u00f6r SIOCSIFINFO_IN6 och SO_RERROR har lagts till.<\/p>\n<li class=\"l\"> Med FreeBSD har drivrutinen iwm synkroniserats med st\u00f6d f\u00f6r tr\u00e5dl\u00f6sa Intel-chip (st\u00f6d f\u00f6r iwm-9000 och iwm-9260 har lagts till).\n<li class=\"l\"> Linux-kompatibla funktioner basename() och dirname() har lagts till f\u00f6r att f\u00f6rb\u00e4ttra kompatibiliteten i portarna.\n<li class=\"l\"> Fr\u00e5n FreeBSD har fsck_msdosfs, sys\/ttydefaults.h, AF_INET \/ AF_INET6 i libc\/getaddrinfo(), calendar(1), rcorder-visualize.sh \u00f6verf\u00f6rts. Fr\u00e5n OpenBSD har funktioner fr\u00e5n math.h \u00f6verf\u00f6rts.\n<li class=\"l\"> Versioner av externa komponenter har uppdaterats, inklusive Binutils 2.34, Openresolv 3.9.2, DHCPCD 8.1.3. Standardsystemet anv\u00e4nder kompilatorn gcc-8.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52473\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 DragonFlyBSD 5.8, \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0441 \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u044b\u043c \u044f\u0434\u0440\u043e\u043c, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u043e\u0439 \u0432 2003 \u0433\u043e\u0434\u0443 \u0441 \u0446\u0435\u043b\u044c\u044e \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f \u0432\u0435\u0442\u043a\u0438 FreeBSD 4.x. \u0418\u0437 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439 DragonFly BSD \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0434\u0435\u043b\u0438\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u0443\u044e \u0432\u0435\u0440\u0441\u0438\u043e\u043d\u043d\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 HAMMER, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 &#171;\u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445&#187; \u044f\u0434\u0435\u0440 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043a\u0430\u043a \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432, \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u043c\u0435\u0442\u0430-\u0434\u0430\u043d\u043d\u044b\u0445 \u0424\u0421 \u043d\u0430 SSD-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u0445, \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u044e\u0449\u0438\u0435 \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043d\u044b\u0435 \u0441\u0438\u043c\u0432\u043e\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0441\u044b\u043b\u043a\u0438, \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u043c\u043e\u0440\u043e\u0437\u043a\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432 [&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-72824","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0435\u043b\u0438\u0437 DragonFlyBSD.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sv\/blog\/news\/reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" content=\"sv_SE\" \/>\n\t\t<meta 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