The move is an important selling point for Oracle partners because they can pitch performance improvements and enhancements for some essential components.
Real-time kernel patching was one of the most requested features by Oracle Linux customers and is possible thanks to the Ksplice open-source extension of the Linux kernel 4 branch,. This lets users apply patches to the running kernel without the need to reboot the system, thus improving security and simplifying the management of cloud infrastructures.
Unbreakable Enterprise Kernel Release 4 is now available for the Oracle Enterprise Linux 6 and Oracle Enterprise Linux 7 series of operating systems based on Red Hat’s RHEL (Red Hat Enterprise Linux) OS.
“The Oracle Linux team is pleased to announce the general availability of the Unbreakable Enterprise Kernel (UEK) Release 4 for Oracle Linux 6 and Oracle Linux 7. This release, based on the 4.1 mainline kernel, delivers many important new features and enhancements engineered for modern cloud infrastructure,” said Michele Casey.
The update includes CPU schedulers and Automatic NUMA Balancing, along with powerful new features, such as real-time kernel patching.
Oracle boosted the security of its Oracle Enterprise Linux systems, as well as to the hosted apps, by implementing features like a new random number system call, kernel address space randomization, and updates for the SELinux, SHA512, SHA256, and nftables programs.
There are also new real-time kernel features like timerless (tickless) multitasking and deadline scheduling class, support for Firefly-based Ceph Storage for Oracle Linux Release 1.0, Oracle Linux DTrace improvements, and better InfiniBand support. Moreover, there are updates to the Btrfs, EXT4, XFS, NFS, FUSE and OverlafFS filesystem, as well as updated drivers to support new hardware.