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10b3c7f5e4
This PR adds two new compression types, based on ZStandard: - zstd: A basic ZStandard compression algorithm Available compression. Levels for zstd are zstd-1 through zstd-19, where the compression increases with every level, but speed decreases. - zstd-fast: A faster version of the ZStandard compression algorithm zstd-fast is basically a "negative" level of zstd. The compression decreases with every level, but speed increases. Available compression levels for zstd-fast: - zstd-fast-1 through zstd-fast-10 - zstd-fast-20 through zstd-fast-100 (in increments of 10) - zstd-fast-500 and zstd-fast-1000 For more information check the man page. Implementation details: Rather than treat each level of zstd as a different algorithm (as was done historically with gzip), the block pointer `enum zio_compress` value is simply zstd for all levels, including zstd-fast, since they all use the same decompression function. The compress= property (a 64bit unsigned integer) uses the lower 7 bits to store the compression algorithm (matching the number of bits used in a block pointer, as the 8th bit was borrowed for embedded block pointers). The upper bits are used to store the compression level. It is necessary to be able to determine what compression level was used when later reading a block back, so the concept used in LZ4, where the first 32bits of the on-disk value are the size of the compressed data (since the allocation is rounded up to the nearest ashift), was extended, and we store the version of ZSTD and the level as well as the compressed size. This value is returned when decompressing a block, so that if the block needs to be recompressed (L2ARC, nop-write, etc), that the same parameters will be used to result in the matching checksum. All of the internal ZFS code ( `arc_buf_hdr_t`, `objset_t`, `zio_prop_t`, etc.) uses the separated _compress and _complevel variables. Only the properties ZAP contains the combined/bit-shifted value. The combined value is split when the compression_changed_cb() callback is called, and sets both objset members (os_compress and os_complevel). The userspace tools all use the combined/bit-shifted value. Additional notes: zdb can now also decode the ZSTD compression header (flag -Z) and inspect the size, version and compression level saved in that header. For each record, if it is ZSTD compressed, the parameters of the decoded compression header get printed. ZSTD is included with all current tests and new tests are added as-needed. Per-dataset feature flags now get activated when the property is set. If a compression algorithm requires a feature flag, zfs activates the feature when the property is set, rather than waiting for the first block to be born. This is currently only used by zstd but can be extended as needed. Portions-Sponsored-By: The FreeBSD Foundation Co-authored-by: Allan Jude <allanjude@freebsd.org> Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Sebastian Gottschall <s.gottschall@dd-wrt.com> Co-authored-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl> Co-authored-by: Michael Niewöhner <foss@mniewoehner.de> Signed-off-by: Allan Jude <allan@klarasystems.com> Signed-off-by: Allan Jude <allanjude@freebsd.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com> Signed-off-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl> Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Closes #6247 Closes #9024 Closes #10277 Closes #10278
309 lines
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309 lines
12 KiB
Plaintext
MAINTAINERS:
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Brian Behlendorf <behlendorf1@llnl.gov>
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Tony Hutter <hutter2@llnl.gov>
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PAST MAINTAINERS:
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Ned Bass <bass6@llnl.gov>
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CONTRIBUTORS:
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Aaron Fineman <abyxcos@gmail.com>
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Adam Leventhal <ahl@delphix.com>
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Adam Stevko <adam.stevko@gmail.com>
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Ahmed G <ahmedg@delphix.com>
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Akash Ayare <aayare@delphix.com>
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Alan Somers <asomers@gmail.com>
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Alar Aun <spamtoaun@gmail.com>
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Albert Lee <trisk@nexenta.com>
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Alec Salazar <alec.j.salazar@gmail.com>
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Alejandro R. Sedeño <asedeno@mit.edu>
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Alek Pinchuk <alek@nexenta.com>
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Alex Braunegg <alex.braunegg@gmail.com>
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Alex McWhirter <alexmcwhirter@triadic.us>
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Alex Reece <alex@delphix.com>
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Alex Wilson <alex.wilson@joyent.com>
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Alex Zhuravlev <alexey.zhuravlev@intel.com>
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Alexander Eremin <a.eremin@nexenta.com>
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Alexander Motin <mav@freebsd.org>
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Alexander Pyhalov <apyhalov@gmail.com>
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Alexander Stetsenko <ams@nexenta.com>
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Alexey Shvetsov <alexxy@gentoo.org>
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Alexey Smirnoff <fling@member.fsf.org>
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Allan Jude <allanjude@freebsd.org>
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AndCycle <andcycle@andcycle.idv.tw>
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Andreas Buschmann <andreas.buschmann@tech.net.de>
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Andreas Dilger <adilger@intel.com>
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Andrew Barnes <barnes333@gmail.com>
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Andrew Hamilton <ahamilto@tjhsst.edu>
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Andrew Reid <ColdCanuck@nailedtotheperch.com>
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Andrew Stormont <andrew.stormont@nexenta.com>
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Andrew Tselischev <andrewtselischev@gmail.com>
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Andrey Vesnovaty <andrey.vesnovaty@gmail.com>
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Andriy Gapon <avg@freebsd.org>
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Andy Bakun <github@thwartedefforts.org>
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Aniruddha Shankar <k@191a.net>
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Antonio Russo <antonio.e.russo@gmail.com>
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Arkadiusz Bubała <arkadiusz.bubala@open-e.com>
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Arne Jansen <arne@die-jansens.de>
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Aron Xu <happyaron.xu@gmail.com>
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Bart Coddens <bart.coddens@gmail.com>
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Basil Crow <basil.crow@delphix.com>
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Huang Liu <liu.huang@zte.com.cn>
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Ben Allen <bsallen@alcf.anl.gov>
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Ben Rubson <ben.rubson@gmail.com>
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Benjamin Albrecht <git@albrecht.io>
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Bill McGonigle <bill-github.com-public1@bfccomputing.com>
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Bill Pijewski <wdp@joyent.com>
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Boris Protopopov <boris.protopopov@nexenta.com>
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Brad Lewis <brad.lewis@delphix.com>
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Brian Behlendorf <behlendorf1@llnl.gov>
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Brian J. Murrell <brian@sun.com>
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Caleb James DeLisle <calebdelisle@lavabit.com>
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Cao Xuewen <cao.xuewen@zte.com.cn>
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Carlo Landmeter <clandmeter@gmail.com>
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Carlos Alberto Lopez Perez <clopez@igalia.com>
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Chaoyu Zhang <zhang.chaoyu@zte.com.cn>
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Chen Can <chen.can2@zte.com.cn>
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Chen Haiquan <oc@yunify.com>
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Chip Parker <aparker@enthought.com>
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Chris Burroughs <chris.burroughs@gmail.com>
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Chris Dunlap <cdunlap@llnl.gov>
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Chris Dunlop <chris@onthe.net.au>
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Chris Siden <chris.siden@delphix.com>
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Chris Wedgwood <cw@f00f.org>
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Chris Williamson <chris.williamson@delphix.com>
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Chris Zubrzycki <github@mid-earth.net>
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Christ Schlacta <aarcane@aarcane.info>
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Christer Ekholm <che@chrekh.se>
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Christian Kohlschütter <christian@kohlschutter.com>
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Christian Neukirchen <chneukirchen@gmail.com>
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Christian Schwarz <me@cschwarz.com>
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Christopher Voltz <cjunk@voltz.ws>
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Chunwei Chen <david.chen@nutanix.com>
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Clemens Fruhwirth <clemens@endorphin.org>
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Coleman Kane <ckane@colemankane.org>
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Colin Ian King <colin.king@canonical.com>
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Craig Loomis <cloomis@astro.princeton.edu>
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Craig Sanders <github@taz.net.au>
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Cyril Plisko <cyril.plisko@infinidat.com>
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DHE <git@dehacked.net>
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Damian Wojsław <damian@wojslaw.pl>
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Dan Kimmel <dan.kimmel@delphix.com>
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Dan McDonald <danmcd@nexenta.com>
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Dan Swartzendruber <dswartz@druber.com>
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Dan Vatca <dan.vatca@gmail.com>
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Daniel Hoffman <dj.hoffman@delphix.com>
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Daniel Verite <daniel@verite.pro>
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Daniil Lunev <d.lunev.mail@gmail.com>
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Darik Horn <dajhorn@vanadac.com>
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Dave Eddy <dave@daveeddy.com>
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David Lamparter <equinox@diac24.net>
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David Qian <david.qian@intel.com>
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David Quigley <david.quigley@intel.com>
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Debabrata Banerjee <dbanerje@akamai.com>
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Denys Rtveliashvili <denys@rtveliashvili.name>
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Derek Dai <daiderek@gmail.com>
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Dimitri John Ledkov <xnox@ubuntu.com>
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Dmitry Khasanov <pik4ez@gmail.com>
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Dominik Hassler <hadfl@omniosce.org>
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Dominik Honnef <dominikh@fork-bomb.org>
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Don Brady <don.brady@delphix.com>
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Dr. András Korn <korn-github.com@elan.rulez.org>
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Eli Rosenthal <eli.rosenthal@delphix.com>
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Eric Desrochers <eric.desrochers@canonical.com>
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Eric Dillmann <eric@jave.fr>
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Eric Schrock <Eric.Schrock@delphix.com>
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Etienne Dechamps <etienne@edechamps.fr>
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Evan Susarret <evansus@gmail.com>
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Fabian Grünbichler <f.gruenbichler@proxmox.com>
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Fajar A. Nugraha <github@fajar.net>
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Fan Yong <fan.yong@intel.com>
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Feng Sun <loyou85@gmail.com>
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Frederik Wessels <wessels147@gmail.com>
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Frédéric Vanniere <f.vanniere@planet-work.com>
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Garrett D'Amore <garrett@nexenta.com>
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Garrison Jensen <garrison.jensen@gmail.com>
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Gary Mills <gary_mills@fastmail.fm>
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Gaurav Kumar <gauravk.18@gmail.com>
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GeLiXin <ge.lixin@zte.com.cn>
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George Amanakis <g_amanakis@yahoo.com>
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George Melikov <mail@gmelikov.ru>
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George Wilson <gwilson@delphix.com>
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Georgy Yakovlev <ya@sysdump.net>
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Giuseppe Di Natale <guss80@gmail.com>
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Gordan Bobic <gordan@redsleeve.org>
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Gordon Ross <gwr@nexenta.com>
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Gregor Kopka <gregor@kopka.net>
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Grischa Zengel <github.zfsonlinux@zengel.info>
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Gunnar Beutner <gunnar@beutner.name>
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Gvozden Neskovic <neskovic@gmail.com>
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Hajo Möller <dasjoe@gmail.com>
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Hans Rosenfeld <hans.rosenfeld@nexenta.com>
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Håkan Johansson <f96hajo@chalmers.se>
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Igor Kozhukhov <ikozhukhov@gmail.com>
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Igor Lvovsky <ilvovsky@gmail.com>
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Isaac Huang <he.huang@intel.com>
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JK Dingwall <james@dingwall.me.uk>
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Jacek Fefliński <feflik@gmail.com>
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James Cowgill <james.cowgill@mips.com>
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James Lee <jlee@thestaticvoid.com>
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James Pan <jiaming.pan@yahoo.com>
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Jan Engelhardt <jengelh@inai.de>
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Jan Kryl <jan.kryl@nexenta.com>
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Jan Sanislo <oystr@cs.washington.edu>
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Jason King <jason.brian.king@gmail.com>
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Jason Zaman <jasonzaman@gmail.com>
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Javen Wu <wu.javen@gmail.com>
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Jeremy Gill <jgill@parallax-innovations.com>
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Jeremy Jones <jeremy@delphix.com>
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Jerry Jelinek <jerry.jelinek@joyent.com>
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Jinshan Xiong <jinshan.xiong@intel.com>
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Joe Stein <joe.stein@delphix.com>
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John Albietz <inthecloud247@gmail.com>
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John Eismeier <john.eismeier@gmail.com>
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John L. Hammond <john.hammond@intel.com>
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John Layman <jlayman@sagecloud.com>
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John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
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John Wren Kennedy <john.kennedy@delphix.com>
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Johnny Stenback <github@jstenback.com>
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Jorgen Lundman <lundman@lundman.net>
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Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
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Joshua M. Clulow <josh@sysmgr.org>
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Justin Bedő <cu@cua0.org>
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Justin Lecher <jlec@gentoo.org>
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Justin T. Gibbs <gibbs@FreeBSD.org>
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Jörg Thalheim <joerg@higgsboson.tk>
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KORN Andras <korn@elan.rulez.org>
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Kamil Domański <kamil@domanski.co>
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Karsten Kretschmer <kkretschmer@gmail.com>
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Kash Pande <kash@tripleback.net>
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Keith M Wesolowski <wesolows@foobazco.org>
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Kevin Tanguy <kevin.tanguy@ovh.net>
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KireinaHoro <i@jsteward.moe>
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Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>
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Kohsuke Kawaguchi <kk@kohsuke.org>
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Kyle Blatter <kyleblatter@llnl.gov>
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Kyle Fuller <inbox@kylefuller.co.uk>
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Loli <ezomori.nozomu@gmail.com>
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Lars Johannsen <laj@it.dk>
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Li Dongyang <dongyang.li@anu.edu.au>
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Li Wei <W.Li@Sun.COM>
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Lukas Wunner <lukas@wunner.de>
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Madhav Suresh <madhav.suresh@delphix.com>
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Manoj Joseph <manoj.joseph@delphix.com>
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Manuel Amador (Rudd-O) <rudd-o@rudd-o.com>
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Marcel Huber <marcelhuberfoo@gmail.com>
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Marcel Telka <marcel.telka@nexenta.com>
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Marcel Wysocki <maci.stgn@gmail.com>
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Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
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Mark Wright <markwright@internode.on.net>
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Martin Matuska <mm@FreeBSD.org>
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Massimo Maggi <me@massimo-maggi.eu>
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Matt Johnston <matt@fugro-fsi.com.au>
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Matt Kemp <matt@mattikus.com>
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Matthew Ahrens <matt@delphix.com>
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Matthew Thode <mthode@mthode.org>
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Matus Kral <matuskral@me.com>
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Max Grossman <max.grossman@delphix.com>
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Maximilian Mehnert <maximilian.mehnert@gmx.de>
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Michael Gebetsroither <michael@mgeb.org>
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Michael Kjorling <michael@kjorling.se>
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Michael Martin <mgmartin.mgm@gmail.com>
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Michael Niewöhner <foss@mniewoehner.de>
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Mike Gerdts <mike.gerdts@joyent.com>
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Mike Harsch <mike@harschsystems.com>
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Mike Leddy <mike.leddy@gmail.com>
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Mike Swanson <mikeonthecomputer@gmail.com>
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Milan Jurik <milan.jurik@xylab.cz>
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Morgan Jones <mjones@rice.edu>
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Moritz Maxeiner <moritz@ucworks.org>
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Nathaniel Clark <Nathaniel.Clark@misrule.us>
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Nathaniel Wesley Filardo <nwf@cs.jhu.edu>
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Nav Ravindranath <nav@delphix.com>
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Neal Gompa (ニール・ゴンパ) <ngompa13@gmail.com>
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Ned Bass <bass6@llnl.gov>
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Neependra Khare <neependra@kqinfotech.com>
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Neil Stockbridge <neil@dist.ro>
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Nick Garvey <garvey.nick@gmail.com>
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Nikolay Borisov <n.borisov.lkml@gmail.com>
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Olaf Faaland <faaland1@llnl.gov>
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Oleg Drokin <green@linuxhacker.ru>
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Oleg Stepura <oleg@stepura.com>
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Patrik Greco <sikevux@sikevux.se>
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Paul B. Henson <henson@acm.org>
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Paul Dagnelie <pcd@delphix.com>
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Paul Zuchowski <pzuchowski@datto.com>
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Pavel Boldin <boldin.pavel@gmail.com>
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Pavel Zakharov <pavel.zakharov@delphix.com>
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Pawel Jakub Dawidek <pjd@FreeBSD.org>
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Pedro Giffuni <pfg@freebsd.org>
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Peng <peng.hse@xtaotech.com>
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Peter Ashford <ashford@accs.com>
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Prakash Surya <prakash.surya@delphix.com>
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Prasad Joshi <prasadjoshi124@gmail.com>
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Ralf Ertzinger <ralf@skytale.net>
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Randall Mason <ClashTheBunny@gmail.com>
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Remy Blank <remy.blank@pobox.com>
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Ricardo M. Correia <ricardo.correia@oracle.com>
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Rich Ercolani <rincebrain@gmail.com>
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Richard Elling <Richard.Elling@RichardElling.com>
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Richard Laager <rlaager@wiktel.com>
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Richard Lowe <richlowe@richlowe.net>
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Richard Sharpe <rsharpe@samba.org>
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Richard Yao <ryao@gentoo.org>
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Rohan Puri <rohan.puri15@gmail.com>
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Romain Dolbeau <romain.dolbeau@atos.net>
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Roman Strashkin <roman.strashkin@nexenta.com>
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Ruben Kerkhof <ruben@rubenkerkhof.com>
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Saso Kiselkov <saso.kiselkov@nexenta.com>
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Scot W. Stevenson <scot.stevenson@gmail.com>
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Sean Eric Fagan <sef@ixsystems.com>
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Sebastian Gottschall <s.gottschall@dd-wrt.com>
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Sen Haerens <sen@senhaerens.be>
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Serapheim Dimitropoulos <serapheim@delphix.com>
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Seth Forshee <seth.forshee@canonical.com>
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Shampavman <sham.pavman@nexenta.com>
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Shen Yan <shenyanxxxy@qq.com>
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Simon Guest <simon.guest@tesujimath.org>
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Simon Klinkert <simon.klinkert@gmail.com>
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Sowrabha Gopal <sowrabha.gopal@delphix.com>
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Stanislav Seletskiy <s.seletskiy@gmail.com>
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Steffen Müthing <steffen.muething@iwr.uni-heidelberg.de>
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Stephen Blinick <stephen.blinick@delphix.com>
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Steve Dougherty <sdougherty@barracuda.com>
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Steven Burgess <sburgess@dattobackup.com>
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Steven Hartland <smh@freebsd.org>
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Steven Johnson <sjohnson@sakuraindustries.com>
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Stian Ellingsen <stian@plaimi.net>
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Suman Chakravartula <schakrava@gmail.com>
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Sydney Vanda <sydney.m.vanda@intel.com>
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Sören Tempel <soeren+git@soeren-tempel.net>
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Thijs Cramer <thijs.cramer@gmail.com>
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Tim Chase <tim@chase2k.com>
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Tim Connors <tconnors@rather.puzzling.org>
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Tim Crawford <tcrawford@datto.com>
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Tim Haley <Tim.Haley@Sun.COM>
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Tobin Harding <me@tobin.cc>
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Tom Caputi <tcaputi@datto.com>
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Tom Matthews <tom@axiom-partners.com>
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Tom Prince <tom.prince@ualberta.net>
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Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
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Tony Hutter <hutter2@llnl.gov>
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Toomas Soome <tsoome@me.com>
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Trey Dockendorf <treydock@gmail.com>
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Turbo Fredriksson <turbo@bayour.com>
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Tyler J. Stachecki <stachecki.tyler@gmail.com>
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Vitaut Bajaryn <vitaut.bayaryn@gmail.com>
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Weigang Li <weigang.li@intel.com>
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Will Andrews <will@freebsd.org>
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Will Rouesnel <w.rouesnel@gmail.com>
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Wolfgang Bumiller <w.bumiller@proxmox.com>
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Xin Li <delphij@FreeBSD.org>
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Ying Zhu <casualfisher@gmail.com>
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YunQiang Su <syq@debian.org>
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Yuri Pankov <yuri.pankov@gmail.com>
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Yuxuan Shui <yshuiv7@gmail.com>
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Zachary Bedell <zac@thebedells.org>
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