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bcd010d3a5
Before this change ZFS created threads for 50% of CPUs for each top- level vdev. Plus it created the same number of threads for embedded log groups (that have only one metaslab and don't need any preload). As result, on system with 80 CPUs and pool of 60 vdevs this resulted in 4800 metaslab preload threads, that is absolutely insane. This patch changes the preload threads to 50% of CPUs in one taskq per pool, so on the mentioned system it will be only 40 threads. Among other things this fixes zdb on the mentioned system and pool on FreeBSD, that failed to create so many threads in one process. Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored by: iXsystems, Inc. Closes #15319 |
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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 12.2-RELEASE.