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Matthew Ahrens 20f287855a
zvol_write() can use dmu_tx_hold_write_by_dnode() 
We can improve the performance of writes to zvols by using
dmu_tx_hold_write_by_dnode() instead of dmu_tx_hold_write().  This
reduces lock contention on the first block of the dnode object, and also
reduces the amount of CPU needed.  The benefit will be highest with
multi-threaded async writes (i.e. writes that don't call zil_commit()).

Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #10184
2020-04-10 21:14:01 -07:00
.github Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
cmd Minor zstream redup command fixes 2020-04-10 21:10:09 -07:00
config Linux 5.7 compat: blk_alloc_queue() 2020-04-09 09:16:46 -07:00
contrib Fix cstyle warnings 2020-03-17 15:42:27 -07:00
etc Fix zfs-functions packaging bug 2020-03-10 09:53:20 -07:00
include Persistent L2ARC 2020-04-10 10:33:35 -07:00
lib Add zstream redup command to convert deduplicated send streams 2020-04-10 10:39:55 -07:00
man Add zstream redup command to convert deduplicated send streams 2020-04-10 10:39:55 -07:00
module zvol_write() can use dmu_tx_hold_write_by_dnode() 2020-04-10 21:14:01 -07:00
rpm Change http://zfsonlinux.org links to https://zfsonlinux.org 2020-01-13 16:43:59 -08:00
scripts zloop.sh should call ZDB with pool name 2020-03-11 10:02:23 -07:00
tests Add zstream redup command to convert deduplicated send streams 2020-04-10 10:39:55 -07:00
udev Create symbolic links in /dev/disk/by-vdev for nvme disk devices 2019-12-17 17:50:20 -08:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Adapt gitignore for modules 2019-12-02 13:23:47 -08:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Add zstream redup command to convert deduplicated send streams 2020-04-10 10:39:55 -07:00
copy-builtin bash scripts: use /usr/bin/env for bash shebangs 2020-02-10 13:13:46 -08:00
COPYRIGHT ICP: Improve AES-GCM performance 2020-02-10 12:59:50 -08:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
META Linux 5.7 compat: blk_alloc_queue() 2020-04-09 09:16:46 -07:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Update README for OpenZFS 2020-02-25 11:43:20 -08:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

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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.

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Official Resources

  • Wiki - 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.

FreeBSD support is a work in progress. See the PR.

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 META file contains the officially recognized supported Linux kernel versions.