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
performance improvements through
enhancements to features like automatic NUMA balancing and CPU schedulers,
and the introduction of new features like zswap, zram, the LZ4 compression
algorithm, network batch transmissions and low-latency network polling.
options for boosting the security of systems and the applications they
host. UEK Release 4 now includes
kernel address space randomization, a new random number system call and
updates in key areas like SELinux, nftables, SHA256 and SHA512.
kernel and userspace patching
with Ksplice for Oracle Linux to simplify managing cloud infrastructure
and improve security.
for key cloud technologies. Xen host and guest domain feature and performance enhancements, Open vSwitch and VXLAN improvements for networking, cgroups and namespace enhancements for linux containers and Docker.
to Oracle Linux DTrace for dynamic,
real-time system tracing on production systems
production release and support of Ceph Storage for Oracle Linux Release
1.0, based on the upstream Firefly
real-time kernel features
including timerless (tickless) multitasking and the addition of the deadline
infiniband features including improved
protocols, drivers and firmware.
- A number of updates to key areas such as XFS, Btrfs,
Ext4, NFS, FUSE and the Overlay file systems.
- A number of driver updates supporting the latest
This has been a major engineering effort that can benefit every
Oracle Linux customer. For more
information on this release, please review the release notes here.
Oracle Linux is available to download from the Oracle
Software Delivery Cloud and the Oracle Yum repos.