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523e1295fe
Since L2ARC buffers are not evicted on memory pressure, too large amount of headers on system with irrationally large L2ARC can render it slow or even unusable. This change limits L2ARC writes and rebuild if unevictable L2ARC-only headers reach dangerous level. While there, call arc_adapt() on L2ARC rebuild, so that it could properly grow arc_c, reflecting potentially significant ARC size increase and avoiding slow growth with hopeless eviction attempts later when "overflow" is detected. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reported-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Closes #10765 |
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| zfs.release.in | ||
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 Linux distribution can be found at the ZoL Site.
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 12-STABLE and 13-CURRENT.