Linux 2.6.23 is out, and this version has many virtualization features, including the lguest "Linux-on-Linux" paravirtualization hypervisor, XEN guest support, and KVM smp guest support.
A new process scheduler, the CFS (Completely Fair Scheduler), is also in. Other notable additions are the XFS and ext4 improvements on the file system, as well as PPP over L2TP support.
Excerpt from the changelog:
...includes the new, better, fairer CFS process scheduler, a simpler read-ahead mechanism, the lguest 'Linux-on-Linux' paravirtualization hypervisor, XEN guest support, KVM smp guest support, variable process argument length, make SLUB the default slab allocator, SELinux protection for exploiting null dereferences using mmap, XFS and ext4 improvements, PPP over L2TP support, the 'lumpy' reclaim algorithm, a userspace driver framework, the O_CLOEXEC file descriptor flag, splice improvements, new fallocate() syscall, lock statistics, support for multiqueue network devices, various new drivers and many other minor features and fixes.
Check out the full changelog for details.
Paul Mah is a writer and blogger who lives in Singapore, where he has worked for a number of years in various capacities within the IT industry. Paul enjoys tinkering with tech gadgets, smartphones, and networking devices.