Oracle yatulutsa Unbreakable Enterprise Kernel R5U2

Kampani ya Oracle anamasulidwa Kusintha kwachiwiri kwa kernel Enterprise Kernel R5, yoyikidwa kuti igwiritsidwe ntchito pakugawa kwa Oracle Linux ngati njira ina ya phukusi lokhazikika ndi kernel kuchokera ku Red Hat Enterprise Linux. Kernel ikupezeka pa x86_64 ndi ARM64 (aarch64) zomangamanga. Magwero a Kernel, kuphatikiza kugawanika kukhala zigamba pawokha, lofalitsidwa m'malo agulu a Oracle Git.

Enterprise Kernel 5 yosasweka idakhazikitsidwa ndi kernel Linux 4.14 (UEK R4 idakhazikitsidwa pa 4.1 kernel), yomwe imasinthidwa ndi mawonekedwe atsopano, kukhathamiritsa ndi kukonza, ndipo imayesedwanso kuti igwirizane ndi mapulogalamu ambiri omwe akuyenda pa RHEL, ndipo imakonzedwa makamaka kuti igwire ntchito ndi Oracle mafakitale mapulogalamu ndi hardware. Kuyika ndi src phukusi ndi UEK R5U1 kernel kukonzekera kwa Oracle Linux 7.5 ndi 7.6 (palibe zolepheretsa kugwiritsa ntchito kernel mumitundu yofananira ya RHEL, CentOS ndi Scientific Linux).

Chinsinsi kuwongolera:

• Zigamba zasamutsidwa ndikukhazikitsa kagawo kakang'ono ka PSI (Pressure Stall Information), komwe kumakupatsani mwayi wosanthula zambiri za nthawi yodikirira kuti mupeze zinthu zosiyanasiyana (CPU, memory, I/O) pazantchito zina kapena seti zamagulu mugulu. . Pogwiritsa ntchito PSI, ogwiritsira ntchito malo ogwiritsira ntchito amatha kuwerengera molondola mlingo wa katundu wa dongosolo ndi njira zochepetsera poyerekeza ndi Kulemera Kwambiri;
• Kwa cgroup2, cpuset resource controller imayatsidwa, yomwe imapereka njira yochepetsera kuyika kwa ntchito pa ma node a kukumbukira a NUMA ndi ma CPU, kulola kugwiritsa ntchito zinthu zokhazokha zomwe zimafotokozedwera gulu la ntchito kudzera mu mawonekedwe a cpuset pseudo-FS;
• Dongosolo la ktask lakhazikitsidwa kuti lifanane ndi ntchito mu kernel zomwe zimadya zofunikira za CPU. Mwachitsanzo, kugwiritsa ntchito ktask, kufananiza kwa ntchito kuti muchotse masamba okumbukira kapena kukonza mndandanda wa ma innode akhoza kukonzedwa;
• Mu DTrace anawonjezera kuthandizira kujambula paketi kudzera pa libpcap pogwiritsa ntchito chinthu chatsopano "pcap(skb,proto)" Mwachitsanzo "dtrace -n 'ip:::send {pcap((void *)arg0, PCAP_IP); }'";
• Kuchokera ku ma kernel atsopano kupitirizidwa kukonza pakukhazikitsa mafayilo a btrfs, CIFS, ext4, OCFS2 ndi XFS;
• Kuchokera ku kernel 4.19 kupitirizidwa kusintha kokhudzana ndi chithandizo cha KVM, Xen ndi Hyper-V hypervisors;
• Zasinthidwa madalaivala a chipangizo ndi chithandizo chokulitsidwa cha ma drive a NVMe (zosintha kuchokera ku ma kernels 4.18 mpaka 4.21 zasamutsidwa);
• Zosintha zagwiritsidwa ntchito kuti muwongolere magwiridwe antchito pamapulatifomu a ARM.

Source: opennet.ru