ZFS On Linux 0.6.5 Adds 4.2 Kernel Support, New Zpool/Zdb Functionality
The ZFS On Linux 0.6.5 release has support for temporary mount options, accessing the .zfs/snapshot over NFS, new zpool and zdb options, improved performance of zdb -b, improved ZVOL performance on all kernels, improved allocation behavior on mostly full SSD / file pools, improved performance when removing large files, and ARC caching improvements. There's also a ton of bug-fixes and other exciting improvements.
With performance improvements being mentioned, I'll be looking at running some fresh ZFS On Linux 0.6.5 benchmarks on Phoronix in the near future plus any other interesting file-system comparison tests if there's enough interest. More details on ZFS On Linux 0.6.5 can be found via this GitHub tag.