OpenZFS 2.3-rc1 released last week with [1]RAIDZ expansion, fast deduplication, and direct IO support among other changes for this ZFS file-system implementation for use on Linux and FreeBSD systems. OpenZFS 2.3-rc2 is out today with a few more interesting changes.

OpenZFS 2.3 is going to be very exciting with its RAIDZ expansion, Direct IO for better performance, fast deduplication, support for longer file and directory names, and other changes.

The changes new to OpenZFS 2.3-rc2 that are exciting me the most is optimized kernel same-page merging and making use of CPU pinning for better performance. [2]This merge by Tino Reichardt lays out the details on both for better performance with this CPU pinning and kernel same-page merging (KSM) functionality for at least some operating systems:

OpenZFS 2.3-rc2 also has a number of bug fixes, always validating checksums on Direct I/O reads, and other changes.

OpenZFS 2.3-rc2 downloads and more details on the new release candidate via [3]GitHub .



[1] https://www.phoronix.com/news/OpenZFS-2.3-rc1-Released

[2] https://github.com/openzfs/zfs/pull/16641

[3] https://github.com/openzfs/zfs/releases/tag/zfs-2.3.0-rc2