zfs/cmd/zdb
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
..
Makefile.am libzdb: Initial breakout of libzdb 2024-02-05 10:00:41 -08:00
zdb.c ddt: add support for prefetching tables into the ARC 2024-07-26 09:16:18 -07:00
zdb.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zdb_il.c Provide macros for setting and getting blkptr birth times 2024-03-25 15:01:54 -07:00