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54126fdb5b
zfs_arc_shrinker_limit was introduced to avoid ARC collapse due to aggressive kernel reclaim. While useful, the current default (10000) is too prone to OOM especially when MGLRU-enabled kernels with default min_ttl_ms are used. Even when no OOM happens, it often causes too much swap usage. This patch sets zfs_arc_shrinker_limit=0 to not ignore kernel reclaim requests. ARC now plays better with both kernel shrinker and pagecache but, should ARC collapse happen again, MGLRU behavior can be tuned or even disabled. Anyway, zfs should not cause OOM when ARC can be released. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Gionatan Danti <g.danti@assyoma.it> Closes #16909 |
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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.