{"id":34910,"date":"2019-10-31T22:01:11","date_gmt":"2019-10-31T19:01:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2\/"},"modified":"2019-10-31T22:01:11","modified_gmt":"2019-10-31T19:01:11","slug":"kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2","title":{"rendered":"Compania Oracle a lansat nucleul Unbreakable Enterprise Kernel R5U2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Compania Oracle <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.oracle.com\/linux\/announcing-the-general-availability-of-the-unbreakable-enterprise-kernel-release-5-update-2\">a lansat<\/a><\/noindex> a doua actualizare func\u021bional\u0103 pentru nucleu <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48813\">Nucleul \u00centreprinderii Nep\u0103trunse R5<\/a><\/noindex>, pozi\u021bionat pentru utilizare \u00een distribu\u021bia Oracle Linux ca alternativ\u0103 la pachetul standard cu nucleu din Red Hat Enterprise Linux. Nucleul este disponibil pentru arhitecturile x86_64 \u0219i ARM64 (aarch64). Codurile surs\u0103 ale nucleului, inclusiv divizarea \u00een patch-uri separate, <noindex><a rel=\"nofollow\" href=\"https:\/\/oss.oracle.com\/git\/?p=linux-uek.git;a=summary\">sunt publicate<\/a><\/noindex> \u00een depozitul Git public Oracle.<\/p>\n<p>Pachetul Nucleul \u00centreprinderii Nep\u0103trunse 5 se bazeaz\u0103 pe nucleul <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47513\">Linux 4.14<\/a><\/noindex> (UEK R4 s-a bazat pe nucleul 4.1), care este \u00eembun\u0103t\u0103\u021bit cu noi func\u021bionalit\u0103\u021bi, optimiz\u0103ri \u0219i corecturi, \u0219i care a fost testat pentru compatibilitate cu majoritatea aplica\u021biilor care func\u021bioneaz\u0103 \u00een RHEL, fiind special optimizat pentru a lucra cu software-ul \u0219i echipamentele industriale Oracle. Pachetele de instalare \u0219i sursa cu nucleul UEK R5U1 <noindex><a rel=\"nofollow\" href=\"https:\/\/yum.oracle.com\/oracle-linux-7.html\">sunt preg\u0103tite<\/a><\/noindex> pentru Oracle Linux 7.5 \u0219i 7.6 (nu exist\u0103 nicio restric\u021bie privind utilizarea acestui nucleu \u00een versiunile similare RHEL, CentOS \u0219i Scientific Linux). <\/p>\n<p>Principalele <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/index.html\">\u00eembun\u0103t\u0103\u021biri<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Au fost transferate patch-uri cu implementarea subsistemului PSI (Pressure Stall Information), care permite analiza informa\u021biilor despre timpul de a\u0219teptare pentru ob\u021binerea diferitelor resurse (CPU, memorie, intrare\/ie\u0219ire) pentru anumite sarcini sau grupuri de procese \u00een cgroup. Prin intermediul PSI, handler-ele \u00een spa\u021biul utilizatorului pot evalua mai precis nivelul de \u00eenc\u0103rcare a sistemului \u0219i natura \u00eencetinirii, comparativ cu Load Average;\n<li class=\"l\"> Pentru cgroup2, a fost inclus un controller de resurse cpuset, care ofer\u0103 un mecanism pentru restric\u021bionarea plas\u0103rii sarcinilor pe noduri de memorie \u0219i CPU NUMA, permi\u021b\u00e2nd utilizarea doar a resurselor definite pentru grupul de sarcini prin intermediul interfe\u021bei pseudo-FS cpuset;\n<li class=\"l\"> A fost implementat framework-ul ktask pentru paralelizarea sarcinilor \u00een nucleu, care consum\u0103 resurse CPU semnificative. De exemplu, prin intermediul ktask poate fi organizat\u0103 paralelizarea opera\u021biunilor de cur\u0103\u021bare a intervalelor de pagini de memorie sau procesarea listei inode;\n<li class=\"l\"> \u00cen DTrace <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-dtrace.html\">a fost ad\u0103ugat\u0103<\/a><\/noindex> suport pentru capturarea pachetelor prin libpcap cu ajutorul noului action &#171;pcap(skb,proto)&#187; De exemplu &#171;dtrace -n &#8216;ip:::send { pcap((void *)arg0, PCAP_IP); }'&#187;;\n<li class=\"l\"> Din noile lans\u0103ri ale nucleului <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-fs.html\">au fost transferate<\/a><\/noindex> corecturi \u00een implementarea FS btrfs, CIFS, ext4, OCFS2 \u0219i XFS;\n<li class=\"l\"> Din nucleul 4.19 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-virt.html\">au fost transferate<\/a><\/noindex> modific\u0103ri legate de suportul hypervizorilor KVM, Xen \u0219i Hyper-V;\n<li class=\"l\">  <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/ol_drvupd.html\">Actualizate<\/a><\/noindex> drivere de dispozitive \u0219i extinderea suportului pentru unit\u0103\u021bi NVMe (au fost transferate modific\u0103ri din nucleele 4.18 p\u00e2n\u0103 la 4.21);\n<li class=\"l\"> Au fost aplicate set\u0103ri pentru optimizarea performan\u021bei pe platformele ARM.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Sursa: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50798\">opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u0432\u0442\u043e\u0440\u043e\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Unbreakable Enterprise Kernel R5, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0435 Oracle Linux \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b \u0448\u0442\u0430\u0442\u043d\u043e\u043c\u0443 \u043f\u0430\u043a\u0435\u0442\u0443 \u0441 \u044f\u0434\u0440\u043e\u043c \u0438\u0437 Red Hat Enterprise Linux. \u042f\u0434\u0440\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 x86_64 \u0438 ARM64 (aarch64). \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u044f\u0434\u0440\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0430\u0437\u0431\u0438\u0432\u043a\u0443 \u043d\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u0430\u0442\u0447\u0438, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0432 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e\u043c Git-\u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 Oracle. \u041f\u0430\u043a\u0435\u0442 Unbreakable Enterprise [&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-34910","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All 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