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Alexander Motin
0aa83dce99
I've found that QEMU/KVM guest memory accounted as shared also included into NR_FILE_PAGES. But it is actually a non-evictable anonymous memory. Using it as a base for zfs_arc_pc_percent parameter makes ARC to ignore shrinker requests while page cache does not really have anything to evict, ending up in OOM killer killing the QEMU process. Instead use of NR_ACTIVE_FILE + NR_INACTIVE_FILE should represent the part of a page cache that is actually evictable, which should be safer to use as a reference for ARC scaling. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Ameer Hamza <ahamza@ixsystems.com> Reviewed-by: Pavel Snajdr <snajpa@snajpa.net> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Closes #17334
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.