{"id":99653,"date":"2021-04-04T16:22:47","date_gmt":"2021-04-04T14:22:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2"},"modified":"2021-04-04T16:22:47","modified_gmt":"2021-04-04T14:22:47","slug":"kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2","title":{"rendered":"A Oracle lan\u00e7ou o n\u00facleo Unbreakable Enterprise Kernel R6U2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A empresa Oracle lan\u00e7ou a sua segunda atualiza\u00e7\u00e3o funcional para o n\u00facleo Unbreakable Enterprise Kernel R6, posicionado para ser usado na distribui\u00e7\u00e3o Oracle Linux como uma alternativa ao pacote padr\u00e3o com n\u00facleo do Red Hat Enterprise Linux. O n\u00facleo est\u00e1 dispon\u00edvel para as arquiteturas x86_64 e ARM64 (aarch64). Os c\u00f3digos fontes do n\u00facleo, incluindo a divis\u00e3o em patches individuais, foram publicados em um reposit\u00f3rio Git p\u00fablico da Oracle.    <\/p>\n<p>O pacote Unbreakable Enterprise Kernel 6 \u00e9 baseado no n\u00facleo Linux 5.4 (o UEK R5 era baseado no n\u00facleo 4.14), que foi complementado com novos recursos, otimiza\u00e7\u00f5es e corre\u00e7\u00f5es, e tamb\u00e9m testado para compatibilidade com a maioria das aplica\u00e7\u00f5es que funcionam no RHEL, especialmente otimizado para trabalhar com o software e hardware industrial da Oracle. Os pacotes de instala\u00e7\u00e3o e src do n\u00facleo UEK R6 foram preparados para Oracle Linux 7.x e 8.x.       <\/p>\n<p>Principais mudan\u00e7as:  <\/p>\n<ul>\n<li class=\"l\">  Para cgroups, foi adicionado um novo controlador de distribui\u00e7\u00e3o de mem\u00f3ria slab (slab memory controller), que se destaca pela transfer\u00eancia do gerenciamento de slab do n\u00edvel de p\u00e1ginas de mem\u00f3ria para o n\u00edvel de objetos do n\u00facleo, permitindo o compartilhamento de p\u00e1ginas slab em diferentes cgroup, em vez da aloca\u00e7\u00e3o de caches slab separados para cada cgroup. A abordagem proposta permite aumentar a efici\u00eancia do uso de slab, reduzindo em at\u00e9 50% o tamanho da mem\u00f3ria utilizada para slab, diminuindo significativamente o consumo total de mem\u00f3ria do n\u00facleo e reduzindo a fragmenta\u00e7\u00e3o da mem\u00f3ria.\n<li class=\"l\"> Para dispositivos Mellanox ConnectX-6 Dx, foi adicionado um novo driver vpda com suporte ao framework vDPA (vHost Data Path Acceleration), permitindo utilizar acelera\u00e7\u00f5es de hardware para entrada\/sa\u00edda em m\u00e1quinas virtuais baseadas em VirtIO.\n<li class=\"l\"> Foram transferidas melhorias do n\u00facleo Linux 5.9, relacionadas ao suporte a dispositivos NVMe.\n<li class=\"l\"> Foram transferidas corre\u00e7\u00f5es e melhorias para os sistemas de arquivos Btrfs, CIFS, ext4, NFS, OCFS2 e XFS.\n<li class=\"l\"> Os drivers foram atualizados, incluindo lpfc 12.8.0.5 (Broadcom Emulex LightPulse Fibre Channel SCSI) com suporte para modo de 256 gigabits para SCSI Fibre Channel, mpt3sas 36.100.00.00 (LSI MPT Fusion SAS 3.0), qla2xxx 0.02.00.103-k (QLogic Fibre Channel HBA).\n<li class=\"l\"> Suporte experimental adicionado. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"154\">VPN<\/a> Wireguard, implementada no n\u00edvel do n\u00facleo.\n<li class=\"l\">  No NFS, foi adicionada suporte experimental \u00e0 possibilidade de c\u00f3pia direta de arquivos entre <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-dusseldorf\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3441\">servidores<\/a>, conforme definido na especifica\u00e7\u00e3o NFS 4.2.\n<li class=\"l\"> No escalonador de tarefas, foi implementada uma funcionalidade experimental para limitar a execu\u00e7\u00e3o paralela de tarefas importantes em diferentes n\u00facleos de CPU, para bloquear os canais de vazamento associados ao uso de cache compartilhado na CPU.       <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54896\">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 R6, \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-99653","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 \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 R6, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f 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