Oracle Linux 6.5 Arrives with Unbreakable Enterprise Linux Kernel 3.8

Unbreakable Enterprise Kernel Release 3 (UEK R3) introduces major improvements over UEK R2, including integrated DTrace support, device mapper support, Btrfs quota groups, Btrfs send and receive subcommands, support for replacing devices without unmounting in Btrfs, EXT4 quotas, TCP controlled delay management, TCP connection repair, STCP and TCP early retransmit, TCP fast open, and TCP small queue algorithm.