Linux kernel 2.6.34
A new version of the Linux kernel, 2.6.34, has been released by Linus Torvalds, announced like “Nothing very interesting here, which is just how I like it,” – featuring two new file systems and a number of updates to virtualization and device driver code.
The 2 new file systems are: Ceph for distributed computing and LogFS for flash devices. The feature Linux file system Btrfs get a number of updates like the ability to compress a single file on demand, defrag a set range of bytes and new interface for incremental backups.
Virtualization features enhancements include a new “vhost net” kernel-level backend for near-native KVM network performance. This driver reduces virtualization overhead and can reduce latency by a factor of five and improve bandwidth to almost-native performance. Existing “virtio net” code is used in guests without modification.
A VMware ballon driver has made it into 2.6.34 which allows the hypervisor to dynamically limit the amount of memory available to the guest. This driver will only activate if the host hypervisor is VMware.
There is also driver changes include updates for Intel, nVidia (Nouveau) and Radeon graphics, storage, networking, USB, sound and video.
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