I-Oracle ikhiphe i-Unbreakable Enterprise Kernel R5U2

Inkampani ye-Oracle kukhishwe isibuyekezo sesici sesibili se-kernel I-Inbreakable Enterprise Kernel R5, ibekwe ukuze isetshenziswe ekusatshalalisweni kwe-Oracle Linux njengenye indlela yephakheji evamile ene-kernel evela ku-Red Hat Enterprise Linux. I-kernel iyatholakala kuma-architectures we-x86_64 kanye ne-ARM64 (aarch64). Imithombo ye-Kernel, okuhlanganisa ukuhlukaniswa kube iziqephu ngazinye, eshicilelwe endaweni yokugcina ye-Oracle Git yomphakathi.

I-Unbreakable Enterprise Kernel 5 isekelwe ku-kernel Linux 4.14 (I-UEK R4 ibisekelwe ku-4.1 kernel), ebuyekezwa ngezici ezintsha, ukuthuthukiswa nokulungiswa, futhi iphinde ihlolelwe ukuhambisana nezinhlelo zokusebenza eziningi ezisebenza ku-RHEL, futhi ilungiselelwe ngokukhethekile ukusebenza nesofthiwe yemboni ye-Oracle nehadiwe. Ukufakwa namaphakheji we-src nge-UEK R5U1 kernel ilungisiwe ku-Oracle Linux 7.5 kanye ne-7.6 (azikho izithiyo ekusebenziseni le kernel kuzinguqulo ezifanayo ze-RHEL, i-CentOS ne-Scientific Linux).

Ukhiye ukuthuthukiswa:

• Amapheshana adluliselwe ngokusetshenziswa kwesistimu engaphansi ye-PSI (Pressure Stall Information), ekuvumela ukuthi uhlaziye imininingwane mayelana nesikhathi sokulinda sokuthola izinsiza ezahlukahlukene (i-CPU, inkumbulo, i-I/O) yemisebenzi ethile noma amasethi ezinqubo kuqoqo. . Ngokusebenzisa i-PSI, izibambi zesikhala somsebenzisi zingalinganisela ngokunembe kakhudlwana izinga lomthwalo wesistimu namaphethini okwehlisa ijubane uma kuqhathaniswa Nesilinganiso Sokulayisha;
• Ku-cgroup2, isilawuli sensiza ye-cpuset sinikwe amandla, esihlinzeka ngendlela yokukhawulela ukubekwa kwemisebenzi kumanodi enkumbulo e-NUMA nama-CPU, okuvumela ukusetshenziswa kwezinsiza ezichazwe kuphela zeqembu lomsebenzi ngokusebenzisa isixhumi esibonakalayo se-cpuset mbumbulu-FS;
• Uhlaka lwe-ktask lusetshenziswe ukufanisa imisebenzi ku-kernel edla izinsiza ezibalulekile ze-CPU. Isibonelo, kusetshenziswa i-ktask, ukufana kwemisebenzi ukuze usule ububanzi bamakhasi ememori noma ukucubungula uhlu lwama-inode lungahlelwa;
• Ku-DTrace kwengezwe usekelo lokuthwebula iphakethe nge-libpcap kusetshenziswa isenzo esisha “pcap(skb,proto)” Ngokwesibonelo “dtrace -n 'ip:::send {pcap((void *)arg0, PCAP_IP); }'";
• Kusukela ekukhishweni okusha kwe-kernel kuqhutshekwe ngale ukulungiswa ekusetshenzisweni kwezinhlelo zefayela le-btrfs, CIFS, ext4, OCFS2 kanye ne-XFS;
• Kusuka ku-kernel 4.19 kuqhutshekwe ngale izinguquko ezihlobene nokusekelwa kwe-KVM, i-Xen ne-Hyper-V hypervisors;
• Kubuyekeziwe abashayeli bedivayisi nokusekelwa okunwetshiwe kwamadrayivu e-NVMe (izinguquko ezisuka ku-kernel 4.18 kuya ku-4.21 zidlulisiwe);
• Ukulungiswa kusetshenziswe ukuze kuthuthukiswe ukusebenza ezinkundleni ze-ARM.

Source: opennet.ru