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Alexander Motin f63811f072
ZIL: Reduce scope of per-dataset zl_issuer_lock.
Before this change ZIL copied all log data while holding the lock.
It caused huge lock contention on workloads with many big parallel
writes.  This change splits the process into two parts: first,
zil_lwb_assign() estimates the log space needed for all transactions,
and zil_lwb_write_close() allocates blocks and zios while holding the
lock, then, after the lock in dropped, zil_lwb_commit() copies the
data, and zil_lwb_write_issue() issues the I/Os.

Also while there slightly reduce scope of zl_lock.

Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Signed-off-by:  Alexander Motin <mav@FreeBSD.org>
Sponsored by:   iXsystems, Inc.
Closes #14841
2023-05-25 09:48:43 -07:00
.github Refine some details for the github actions update 2023-03-16 10:00:14 -07:00
cmd Probe vdevs before marking removed 2023-05-19 13:05:09 -07:00
config Linux 6.4 compat: reclaimed_slab renamed to reclaimed 2023-05-24 12:23:42 -07:00
contrib pam: Fix "buffer overflow" in pam ZTS tests on F38 2023-05-09 17:55:19 -07:00
etc systemd: Use non-absolute paths in Exec* lines 2023-05-24 12:31:28 -07:00
include ZIL: Reduce scope of per-dataset zl_issuer_lock. 2023-05-25 09:48:43 -07:00
lib Teach zpool scrub to scrub only blocks in error log 2023-05-18 11:59:42 -07:00
man Teach zpool scrub to scrub only blocks in error log 2023-05-18 11:59:42 -07:00
module ZIL: Reduce scope of per-dataset zl_issuer_lock. 2023-05-25 09:48:43 -07:00
rpm rpm: Use libtirpc-devel and /usr/lib on SUSE 2023-02-09 11:57:50 -08:00
scripts Fix kmodtool for packaging mainline Linux 2023-03-22 09:22:52 -07:00
tests Fix concurrent resilvers initiated at same time 2023-05-24 12:28:09 -07:00
udev Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore autoconf: use include directives instead of recursing down cmd 2022-05-10 10:18:38 -07:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
AUTHORS zfs_rename: support RENAME_* flags 2022-10-28 09:49:20 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
configure.ac Add native-deb* targets to build native Debian packages 2022-12-13 17:33:05 -08:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Process script directory for all configs 2022-10-27 16:45:14 -07:00
META Linux 6.2 compat: META 2023-03-29 15:39:36 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-01-06 16:25:01 -08:00
RELEASES.md Add RELEASES.md file 2021-04-02 16:33:40 -07:00
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

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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

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 META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.