mirror_zfs/man/man7
Allan Jude 62e7d3c89e
ddt: add support for prefetching tables into the ARC
This change adds a new `zpool prefetch -t ddt $pool` command which
causes a pool's DDT to be loaded into the ARC. The primary goal is to
remove the need to "warm" a pool's cache before deduplication stops
slowing write performance. It may also provide a way to reload portions
of a DDT if they have been flushed due to inactivity.

Sponsored-by: iXsystems, Inc.
Sponsored-by: Catalogics, Inc.
Sponsored-by: Klara, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Will Andrews <will.andrews@klarasystems.com>
Signed-off-by: Fred Weigel <fred.weigel@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Co-authored-by: Will Andrews <will.andrews@klarasystems.com>
Co-authored-by: Don Brady <don.brady@klarasystems.com>
Closes #15890
2024-07-26 09:16:18 -07:00
..
dracut.zfs.7 one-word manpage correction: snapshot->rollback (#16294) 2024-07-12 16:27:12 -07:00
vdevprops.7 Add some missing vdev properties (#16346) 2024-07-23 16:34:09 -07:00
zfsconcepts.7 zfsconcepts: add description of block cloning 2023-10-06 09:06:29 -07:00
zfsprops.7 Add support for multiple lines to the sharenfs property for FreeBSD (#16338) 2024-07-23 16:38:19 -07:00
zpool-features.7 Allow block cloning across encrypted datasets 2023-12-05 11:03:48 -08:00
zpoolconcepts.7 Add slow disk diagnosis to ZED 2024-02-08 09:19:52 -08:00
zpoolprops.7 ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00