HAMMER Performance and Mirroring

Courtesy KernelTrap - Kernel news  Fri, 06/20/2008 - 10:28

Matthew Dillon continues to make significant progress on his HAMMER clustering filesystem for DragonFly BSD. He labeled the latest release 56c, noting that it, "represents an additional significant improvement in performance, [also including] bug fixes and most of the final media changes." A significant improvement in write performance was obtained by making the filesystem block size automatically increase from 16K to 64K when a file grows to larger than 1 MB.

One remaining media change is required to optimize mtime...

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