diff options
| author | Allan Jude <[email protected]> | 2024-07-26 12:16:18 -0400 |
|---|---|---|
| committer | GitHub <[email protected]> | 2024-07-26 09:16:18 -0700 |
| commit | 62e7d3c89ebdb5faddfff5e2e8adc92e569ddf09 (patch) | |
| tree | d24640aebaad1a81185b9f9b721eeadcca9c1d4a /module/zcommon | |
| parent | 2ed1aebaf605ef28a0b899ec019529e0ad381d39 (diff) | |
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 <[email protected]>
Reviewed-by: Tony Hutter <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Allan Jude <[email protected]>
Signed-off-by: Will Andrews <[email protected]>
Signed-off-by: Fred Weigel <[email protected]>
Signed-off-by: Rob Norris <[email protected]>
Signed-off-by: Don Brady <[email protected]>
Co-authored-by: Will Andrews <[email protected]>
Co-authored-by: Don Brady <[email protected]>
Closes #15890
Diffstat (limited to 'module/zcommon')
| -rw-r--r-- | module/zcommon/zpool_prop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/module/zcommon/zpool_prop.c b/module/zcommon/zpool_prop.c index 1838c937b..afdbb6f15 100644 --- a/module/zcommon/zpool_prop.c +++ b/module/zcommon/zpool_prop.c @@ -183,6 +183,9 @@ zpool_prop_init(void) zprop_register_hidden(ZPOOL_PROP_DEDUPDITTO, "dedupditto", PROP_TYPE_NUMBER, PROP_DEFAULT, ZFS_TYPE_POOL, "DEDUPDITTO", B_FALSE, sfeatures); + zprop_register_hidden(ZPOOL_PROP_DEDUPCACHED, + ZPOOL_DEDUPCACHED_PROP_NAME, PROP_TYPE_NUMBER, PROP_READONLY, + ZFS_TYPE_POOL, "DEDUPCACHED", B_FALSE, sfeatures); zfs_mod_list_supported_free(sfeatures); } |