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fd6e8c1d2a
While block cloning operation from the beginning was made per-vdev, before this change most of its data were protected by two pool- wide locks. It created lots of lock contention in many workload. This change makes most of block cloning data structures per-vdev, which allows to lock them separately. The only pool-wide lock now it spa_brt_lock, protecting array of per-vdev pointers and in most cases taken as reader. Also this splits per-vdev locks into three different ones: bv_pending_lock protects the AVL-tree of pending operations in open context, bv_mos_entries_lock protects BRT ZAP object from while being prefetched, and bv_lock protects the rest of per-vdev context during TXG commit process. There should be no functional difference aside of some optimizations. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Pawel Jakub Dawidek <pjd@FreeBSD.org> Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Closes #16740 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.