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Matthew Ahrens 3a549dc7a1 OpenZFS 9442 - decrease indirect block size of spacemaps 
Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Albert Lee <trisk@forkgnu.org>
Reviewed by: Igor Kozhukhov <igor@dilos.org>
Reviewed by: George Melikov <mail@gmelikov.ru>
Approved by: Dan McDonald <danmcd@joyent.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

Updates to indirect blocks of spacemaps can contribute significantly to
write inflation.  Therefore we want to reduce the indirect block size of
spacemaps from 128K to 16K.

Porting notes:
* Refactored to allow the dmu_object_alloc(), dmu_object_alloc_ibs()
  and dmu_object_alloc_dnsize() functions to use a common shared
  dmu_object_alloc_impl() function.

OpenZFS-issue: https://www.illumos.org/issues/9442
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/0c2e6408b
Closes #7712
2018-07-25 14:11:35 -07:00
.github PR's should provide motivation & context first 2018-07-23 22:08:18 -07:00
cmd Add support for autoexpand property 2018-07-23 15:40:15 -07:00
config Add support for autoexpand property 2018-07-23 15:40:15 -07:00
contrib Add pyzfs build directories to gitignore 2018-06-11 18:42:12 -07:00
etc Minor documentation, logging, and testing typos 2018-06-07 09:38:39 -07:00
include OpenZFS 9442 - decrease indirect block size of spacemaps 2018-07-25 14:11:35 -07:00
lib OpenZFS 9457 - libzfs_import.c:add_config() has a memory leak 2018-07-24 17:12:06 -07:00
man OpenZFS 9337 - zfs get all is slow due to uncached metadata 2018-07-12 10:49:27 -07:00
module OpenZFS 9442 - decrease indirect block size of spacemaps 2018-07-25 14:11:35 -07:00
rpm Update build system and packaging 2018-05-29 16:00:33 -07:00
scripts OpenZFS 9330 - stack overflow when creating a deeply nested dataset 2018-07-09 13:02:50 -07:00
tests ZTS: Add reservation_008_pos exception 2018-07-25 10:15:39 -07:00
udev Add kernel module auto-loading 2018-03-13 10:45:55 -07:00
.gitignore Ignore *.o.ur-safe build artifacts 2018-05-13 18:59:02 -07:00
.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
configure.ac OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
copy-builtin copy-builtin: SPL must be in Kbuild first 2018-06-15 15:16:29 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am make install only works once 2018-05-31 09:19:59 -07:00
META Linux compat 4.18: check_disk_size_change() 2018-06-15 15:05:21 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -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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ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux 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 kernel versions.