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The slab allocator is a object-caching kernel memory allocator used for dealing with "objects that are frequently allocated and freed" (see the "slab allocator" paper from Jeff Bonwick). (Recommended article: "The SLUB allocator") Important things (AKA: ''the cool stuff'') Signal/timer events notifications through file descriptorsĢ.6.22 includes an optional, more SMP-friendly SLUB allocator ( ), new and much better wireless and firewire stacks, a new architecture called Blackfin, a LVM-for-flash-storage-devices called UBI, event notifications through file descriptors ( ), the POSIX-draft utimensat() syscall, the 'TCP Illinois' and 'YeAH-TCP' congestion control algorithms, IPV6 Optimistic Duplicate Address Detection, AF_RXRPC socket support, relocatable x86-64 kernel support, improvements to the CFQ I/O scheduler, more process footprint information in /proc, various new drivers and many other improvements.Important things (AKA: ''the cool stuff'').
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