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Brian Behlendorf
fadd0c4da1
When the meta limit is exceeded the ARC evicts some meta data buffers from the mfu+mru lists. Unfortunately, for meta data heavy workloads it's possible for these buffers to accumulate on the ghost lists if arc_c doesn't exceed arc_size. To handle this case arc_adjust_meta() has been entended to explicitly evict meta data buffers from the ghost lists in proportion to what was evicted from the mfu+mru lists. If this is insufficient we request that the VFS release some inodes and dentries. This will result in the release of some dnodes which are counted as 'other' metadata. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Native ZFS for Linux!
ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.
ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.
Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org