{"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\/it\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2","title":{"rendered":"La societ\u00e0 Oracle ha rilasciato il kernel Unbreakable Enterprise Kernel R5U2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Azienda Oracle <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.oracle.com\/linux\/announcing-the-general-availability-of-the-unbreakable-enterprise-kernel-release-5-update-2\">ha rilasciato<\/a><\/noindex> secondo aggiornamento funzionale per il kernel <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=48813\">Unbreakable Enterprise Kernel R5<\/a><\/noindex>, posizionato per l'uso nella distribuzione Oracle Linux come alternativa al pacchetto standard del kernel di Red Hat Enterprise Linux. Il kernel \u00e8 disponibile per le architetture x86_64 e ARM64 (aarch64). I codici sorgente del kernel, inclusa la suddivisione in singoli patch, <noindex><a rel=\"nofollow\" href=\"https:\/\/oss.oracle.com\/git\/?p=linux-uek.git;a=summary\">pubblicati<\/a><\/noindex> sono disponibili nel repository Git pubblico di Oracle.<\/p>\n<p>Il pacchetto Unbreakable Enterprise Kernel 5 si basa sul kernel <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47513\">Linux 4.14<\/a><\/noindex> (UEK R4 si basava sul kernel 4.1), arricchito di nuove funzionalit\u00e0, ottimizzazioni e correzioni, ed \u00e8 stato verificato per la compatibilit\u00e0 con la maggior parte delle applicazioni che operano in RHEL, ed \u00e8 specificamente ottimizzato per lavorare con il software e l'hardware industriale di Oracle. I pacchetti di installazione e src del kernel UEK R5U1 <noindex><a rel=\"nofollow\" href=\"https:\/\/yum.oracle.com\/oracle-linux-7.html\">sono stati preparati<\/a><\/noindex> per Oracle Linux 7.5 e 7.6 (non ci sono ostacoli all'uso di questo kernel in versioni analoghe di RHEL, CentOS e Scientific Linux). <\/p>\n<p>Le chiave <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/index.html\">miglioramenti<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Sono stati trasferiti patch con l'implementazione del sottosistema PSI (Pressure Stall Information), che consente di analizzare le informazioni sul tempo di attesa per ottenere diverse risorse (CPU, memoria, input\/output) per specifici compiti o set di processi in cgroup. Mediante PSI, i gestori nello spazio utente possono valutare pi\u00f9 precisamente il livello di carico di lavoro del sistema e il tipo di rallentamento, rispetto al Load Average;\n<li class=\"l\"> Per cgroup2 \u00e8 stato incluso il controller delle risorse cpuset, che fornisce un meccanismo per limitare la posizione dei compiti tra i nodi di memoria e CPU NUMA, consentendo l'uso solo delle risorse definite per il gruppo di compiti tramite l'interfaccia pseudo-FS cpuset;\n<li class=\"l\"> \u00c8 stato implementato il framework ktask per il parallelismo dei compiti nel kernel che consumano risorse CPU significative. Ad esempio, tramite ktask \u00e8 possibile organizzare il parallelismo delle operazioni di pulizia delle aree di memoria o di elaborazione di una lista di inode;\n<li class=\"l\"> In DTrace <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-dtrace.html\">\u00e8 stata aggiunta<\/a><\/noindex> supporto per la cattura dei pacchetti tramite libpcap utilizzando la nuova azione &#171;pcap(skb,proto)&#187;. Ad esempio &#171;dtrace -n &#8216;ip:::send { pcap((void *)arg0, PCAP_IP); }'&#187;;\n<li class=\"l\"> Dai nuovi rilasci del kernel <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-fs.html\">sono stati trasferiti<\/a><\/noindex> correzioni nell'implementazione dei file system btrfs, CIFS, ext4, OCFS2 e XFS;\n<li class=\"l\"> Dallo kernel 4.19 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/uek5-features-virt.html\">sono stati trasferiti<\/a><\/noindex> cambiamenti legati al supporto degli hypervisor KVM, Xen e Hyper-V;\n<li class=\"l\">  <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E93554_01\/F16744\/html\/ol_drvupd.html\">Aggiornati<\/a><\/noindex> driver di dispositivi e supporto ampliato per gli HDD NVMe (cambiamenti trasferiti dai kernel da 4.18 a 4.21);\n<li class=\"l\"> Applicate impostazioni per l'ottimizzazione delle prestazioni su piattaforme ARM.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <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 5.0.1.1 - 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\/it\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r5u2\" \/>\n\t<meta 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