{"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\/cs\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2","title":{"rendered":"Spole\u010dnost Oracle vydala j\u00e1dro Unbreakable Enterprise Kernel R5U2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spole\u010dnost Oracle <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.oracle.com\/linux\/announcing-the-general-availability-of-the-unbreakable-enterprise-kernel-release-5-update-2\">vyu\u017eila<\/a><\/noindex> druh\u00e9 funk\u010dn\u00ed aktualizace j\u00e1dra <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48813\">Unbreakable Enterprise Kernel R5<\/a><\/noindex>, postaven\u00fd pro pou\u017eit\u00ed v distribuci Oracle Linux jako alternativa k standardn\u00edmu bal\u00ed\u010dku s j\u00e1drem z Red Hat Enterprise Linux. J\u00e1dro je dostupn\u00e9 pro architektury x86_64 a ARM64 (aarch64). Zdrojov\u00e9 k\u00f3dy j\u00e1dra, v\u010detn\u011b rozd\u011blen\u00ed na jednotliv\u00e9 patche, <noindex><a rel=\"nofollow\" href=\"https:\/\/oss.oracle.com\/git\/?p=linux-uek.git;a=summary\">byly zve\u0159ejn\u011bny<\/a><\/noindex> jsou ve ve\u0159ejn\u00e9m Git repozit\u00e1\u0159i Oracle.<\/p>\n<p>Bal\u00ed\u010dek Unbreakable Enterprise Kernel 5 je postaven na j\u00e1dru <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47513\">Linux 4.14<\/a><\/noindex> (UEK R4 byl zalo\u017een na j\u00e1d\u0159e 4.1), kter\u00e9 bylo dopln\u011bno o nov\u00e9 funkce, optimalizace a opravy, a tak\u00e9 bylo testov\u00e1no na kompatibilitu s v\u011bt\u0161inou aplikac\u00ed b\u011b\u017e\u00edc\u00edch na RHEL, a speci\u00e1ln\u011b optimalizov\u00e1no pro pr\u00e1ci s pr\u016fmyslov\u00fdm softwarem a hardwarem Oracle. V instala\u010dn\u00edch a src-balen\u00edch j\u00e1dra UEK R5U1 <noindex><a rel=\"nofollow\" href=\"https:\/\/yum.oracle.com\/oracle-linux-7.html\">jsou p\u0159ipraveny<\/a><\/noindex> pro Oracle Linux 7.5 a 7.6 (neexistuj\u00ed \u017e\u00e1dn\u00e9 p\u0159ek\u00e1\u017eky pro pou\u017eit\u00ed tohoto j\u00e1dra v podobn\u00fdch verz\u00edch RHEL, CentOS a Scientific Linux). <\/p>\n<p>Kl\u00ed\u010dov\u00e9 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/index.html\">vylep\u0161en\u00ed<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Byly p\u0159eneseny patche implementuj\u00edc\u00ed subsyst\u00e9m PSI (Pressure Stall Information), kter\u00fd umo\u017e\u0148uje analyzovat informace o dob\u011b \u010dek\u00e1n\u00ed na z\u00edsk\u00e1n\u00ed r\u016fzn\u00fdch zdroj\u016f (CPU, pam\u011b\u0165, vstup\/v\u00fdstup) pro ur\u010dit\u00e9 \u00fakoly nebo skupiny proces\u016f v cgroup. Pomoc\u00ed PSI mohou u\u017eivatelsk\u00e9 procesory p\u0159esn\u011bji vyhodnotit z\u00e1t\u011b\u017e syst\u00e9mu a charakter zpomalen\u00ed ve srovn\u00e1n\u00ed s Load Average;\n<li class=\"l\"> Pro cgroup2 byl zprovozn\u011bn kontroler zdroj\u016f cpuset, kter\u00fd poskytuje mechanismus pro omezen\u00ed um\u00edst\u011bn\u00ed \u00faloh podle NUMA uzl\u016f pam\u011bti a CPU, a povoluje pou\u017e\u00edv\u00e1n\u00ed pouze t\u011bch zdroj\u016f, kter\u00e9 jsou definov\u00e1ny pro skupinu \u00faloh skrze rozhran\u00ed pseudo-FS cpuset;\n<li class=\"l\"> Byl implementov\u00e1n r\u00e1mec ktask pro paralelizaci \u00faloh v j\u00e1d\u0159e vy\u017eaduj\u00edc\u00edch v\u00fdznamn\u00e9 CPU zdroje. Nap\u0159\u00edklad pomoc\u00ed ktask m\u016f\u017ee b\u00fdt uspo\u0159\u00e1d\u00e1no paralelizov\u00e1n\u00ed operac\u00ed na \u010di\u0161t\u011bn\u00ed rozsah\u016f str\u00e1nkov\u00e9ho souboru nebo zpracov\u00e1n\u00ed seznamu inode;\n<li class=\"l\"> V DTrace <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-dtrace.html\">byla p\u0159id\u00e1na<\/a><\/noindex> podpora z\u00e1chytu paket\u016f p\u0159es libpcap pomoc\u00ed nov\u00e9 akce &#171;pcap(skb,proto)&#187; Nap\u0159\u00edklad &#171;dtrace -n &#8216;ip:::send { pcap((void *)arg0, PCAP_IP); }'&#187;;\n<li class=\"l\"> Z nov\u00fdch verz\u00ed j\u00e1dra <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-fs.html\">byly p\u0159eneseny<\/a><\/noindex> opravy v implementaci FS btrfs, CIFS, ext4, OCFS2 a XFS;\n<li class=\"l\"> Z j\u00e1dra 4.19 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-virt.html\">byly p\u0159eneseny<\/a><\/noindex> zm\u011bny souvisej\u00edc\u00ed s podporou hypervizor\u016f KVM, Xen a Hyper-V;\n<li class=\"l\">  <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/ol_drvupd.html\">Byly aktualizov\u00e1ny<\/a><\/noindex> ovlada\u010de za\u0159\u00edzen\u00ed a roz\u0161\u00ed\u0159en\u00e1 podpora pro NVMe \u00falo\u017ei\u0161t\u011b (byly p\u0159eneseny zm\u011bny z j\u00e1der od 4.18 do 4.21);\n<li class=\"l\"> Byly aplikov\u00e1ny nastaven\u00ed pro optimalizaci v\u00fdkonu na platform\u00e1ch ARM.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=50798\">opennet.ru<\/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 in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u0432\u0442\u043e\u0440\u043e\u0435.\" \/>\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\/cs\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" 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