Linux 2.6.32 Kernel Brings Virtual Memory Improvements

"The 2.6.32 is jam-packed full of driver and filesystem updates as well as several new features that are intended to improve both the physical and virtual performance of a Linux-based operating system.

"BTRFS is a next-generation filesystem originally spearheaded by Oracle's Chris Mason. BTRFS holds the promise of providing improved error correction, "snapshotting" -- making a copy of file data at a particular point in time for improved data integrity and recovery -- and other file-integrity enhancements.

"BTRFS made its initial Linux kernel debut in the 2.6.29 kernel, the first update of 2009.

"A new per-device writeback feature also originated with Oracle (NASDAQ: ORCL) by way of engineer Jens Axboe. The basic idea behind per-device writeback is to optimize the process by which so-called "dirty memory" -- memory that is not optimized and might need to be written to disk -- is flushed to a storage device."

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