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Currently, even though send_reader_thread prefetches spill block, do_dump() will not use it and issues its own blocking arc_read. This causes significant performance degradation when sending datasets with lots of spill blocks. For unmodified spill blocks, we also create send_range struct for them in send_reader_thread and issue prefetches for them. We piggyback them on the dnode send_range instead of enqueueing them so we don't break send_range_after check. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Chunwei Chen <david.chen@nutanix.com> Co-authored-by: david.chen <david.chen@nutanix.com> Closes #16701 |
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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.