{"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\/da\/blog\/news\/reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8","title":{"rendered":"Udgivelse af 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\">Tilg\u00e6ngelig<\/a><\/noindex>  udgivelse <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dragonflybsd.org\/\">DragonFlyBSD 5.8<\/a><\/noindex>, et operativsystem med hybridkerne, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=2717\">skabt<\/a><\/noindex> i 2003 med det form\u00e5l at tilbyde en alternativ udvikling af FreeBSD 4.x-grenen. Blandt kendetegnene ved DragonFly BSD kan n\u00e6vnes det distribuerede versionskontrolsystem <noindex><a rel=\"nofollow\" href=\"https:\/\/wiki.opennet.ru\/HAMMER\">HAMMER<\/a><\/noindex>, underst\u00f8ttelse af indl\u00e6sning af &#171;virtuelle&#187; kerner i systemet som brugerprocesser, muligheden for caching af data og metadata p\u00e5 SSD-diske, der tager h\u00f8jde for kontekstuelle variant- symboliske links, muligheden for at fryse processer med henblik p\u00e5 at bevare deres tilstand p\u00e5 disken, et hybridkerne, der anvender letv\u00e6gtsstr\u00f8mme (LWKT). <\/p>\n<p>Vigtige <noindex><a rel=\"nofollow\" href=\"http:\/\/www.dragonflybsd.org\/release58\/\">forbedringer<\/a><\/noindex>, tilf\u00f8jet i DragonFlyBSD 5.8: <\/p>\n<ul>\n<li class=\"l\"> I hovedpakken er der inkluderet et v\u00e6rkt\u00f8j <noindex><a rel=\"nofollow\" href=\"https:\/\/www.dragonflybsd.org\/cgi\/web-man?command=dsynth\u00a7ion=1\">dsynth<\/a><\/noindex>, der er beregnet til lokal opbygning og vedligeholdelse af egne bin\u00e6re DPort-repositorier. Der underst\u00f8ttes parallelisering af opbygning af et vilk\u00e5rligt antal porte, og tr\u00e6et af afh\u00e6ngigheder tages i betragtning. Ved forberedelse af en ny udgave i DPort er der ogs\u00e5 blevet tilf\u00f8jet mange \u00e6ndringer, der sigter mod at fremskynde opbygningen af flere afh\u00e6ngige pakker.\n<li class=\"l\"> I libc er der implementeret en effektiv mekanisme til signalmaskering, hvilket har beskyttet malloc*() og lignende funktioner mod problemer som f\u00f8lge af signalafbrydelser. Der er foresl\u00e5et funktioner sigblockall() og sigunblockall() til kortvarig blokering og afblokering af signaler, som fungerer uden systemopkald. Desuden er funktionen strtok() i libc tilpasset til brug i multitr\u00e5dede applikationer, og der er tilf\u00f8jet konstanterne TABDLY, TAB0, TAB3 og funktionen __errno_location for at forbedre underst\u00f8ttelsen af dports.\n<li class=\"l\"> DRM (Direct Rendering Manager)-komponenter er synkroniseret med Linux-kernen 4.9 med portering af specifikke funktioner fra kernen 4.12, der sigter mod at forbedre underst\u00f8ttelsen af Wayland.<br \/>\ndrm\/i915-driveren til Intel GPU'er er synkroniseret med Linux-kernen 4.8.17, med overf\u00f8rsel af kode fra kernen 5.4 til st\u00f8tte for nye chippere (Skylake, Coffeelake, Amber Lake, Whiskey Lake og Comet Lake). drm\/radeon-driveren til AMD-grafikkort er synkroniseret med Linux-kernen 4.9.<\/p>\n<li class=\"l\"> Algoritmerne til udveksling af virtuel hukommelse er betydeligt forbedret, hvilket har elimineret eller minimeret problemer med brugergr\u00e6nsefladens reaktivitet ved hukommelsesmangel. Problemer med hangs i Chrome\/Chromium ved utilstr\u00e6kkelig systemhukommelse er blevet l\u00f8st.\n<li class=\"l\"> Forbedret skalering af kernen p\u00e5 systemer med et stort antal processorkerner. Forkortet tid til at anmode om sider i virtuel hukommelse. Mindre konkurrence om SMP under betingelser med begr\u00e6nset hukommelse. \u00d8get effektivitet ved kaldet &#171;open(&#8230; O_RDWR)&#187;.\n<li class=\"l\"> Generatoren for pseudofaldende tal i kernen er blevet omarbejdet. RDRAND-driveren er tilpasset til at samle entropi fra alle CPU'er. Intensiteten<br \/>\n og st\u00f8rrelsen af RDRAND-fodring er reduceret, som tidligere tog 2-3% af CPU-tiden under inaktivitet.<\/p>\n<li class=\"l\"> Nye systemopkald realpath, getrandom og lwp_getname (muliggjorde implementeringen af pthread_get_name_np) er blevet tilf\u00f8jet.\n<li class=\"l\"> Underst\u00f8ttelse af beskyttelsesmekanismerne SMAP (Supervisor Mode Access Prevention) og SMEP (Supervisor Mode Execution Prevention) er blevet tilf\u00f8jet. SMAP g\u00f8r det muligt at blokere adgang til data i brugerrum fra privilegeret kode, der k\u00f8rer i kernen. SMEP forhindrer overgangen fra kernemodus til udf\u00f8relse af kode, der er p\u00e5 brugerniveau, hvilket blokerer for udnyttelse af mange s\u00e5rbarheder i kernen (skadelig kode vil ikke blive udf\u00f8rt, da den er i brugerrum);\n<li class=\"l\"> Sysctl-variablerne til konfiguration af Jail er blevet omarbejdet. Muligheden for at montere nullfs og tmpfs fra Jail er blevet tilf\u00f8jet.\n<li class=\"l\"> En n\u00f8dtilstand for filsystemet HAMMER2 er blevet tilf\u00f8jet, som kan anvendes under genopretning efter fejlsituationer. I denne tilstand tillades \u00f8del\u00e6ggelse af snapshots ved opdatering af inode in-place (g\u00f8r det muligt at slette filer og kataloger, n\u00e5r der ikke er ledig diskplads, n\u00e5r copy-on-write-mekanismen ikke l\u00e6ngere kan anvendes). Ydelsen er betydeligt forbedret takket v\u00e6re omarbejdningen af underst\u00f8ttelsen af tr\u00e5ddispatch i HAMMER2. Proces for t\u00f8mning af buffere (flush) er blevet betydeligt forbedret.\n<li class=\"l\"> P\u00e5lideligheden og ydeevnen af TMPFS er blevet forbedret. Effektiviteten under forhold med utilstr\u00e6kkelig ledig hukommelse i systemet er blevet \u00f8get.\n<li class=\"l\"> I netv\u00e6rksstakken for IPv4 er underst\u00f8ttelsen af pr\u00e6fikser \/31 implementeret (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc3021\">RFC 3021<\/a><\/noindex>).<br \/>\n I tap er behandlingen af ioctl SIOCSIFMTU forbedret til underst\u00f8ttelse af MTU &gt; 1500. Underst\u00f8ttelse af SIOCSIFINFO_IN6 og SO_RERROR er blevet tilf\u00f8jet.<\/p>\n<li class=\"l\"> Driveren for iwm er blevet synkroniseret med FreeBSD til underst\u00f8ttelse af tr\u00e5dl\u00f8se Intel-chips (underst\u00f8ttelse af iwm-9000 og iwm-9260 er blevet tilf\u00f8jet).\n<li class=\"l\"> Linux-kompatible funktioner basename() og dirname() er blevet tilf\u00f8jet for at forbedre kompatibiliteten i porter.\n<li class=\"l\"> fsck_msdosfs, sys\/ttydefaults.h, AF_INET\/AF_INET6 er blevet overf\u00f8rt fra FreeBSD til libc\/getaddrinfo(), calendar(1), rcorder-visualize.sh. Funktioner fra math.h er blevet overf\u00f8rt fra OpenBSD.\n<li class=\"l\"> Opdaterede versioner af tredjepartskomponenter, herunder Binutils 2.34, Openresolv 3.9.2, DHCPCD 8.1.3. Standardkompilatoren er gcc-8.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <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 5.0.3 - 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\/da\/blog\/news\/reliz-operaczionnoj-sistemy-dragonfly-bsd-5-8\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"da_DK\" \/>\n\t\t<meta 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