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FDT dedup log sync -- remove incremental

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This PR condenses the FDT dedup log syncing into a single sync
pass. This reduces the overhead of modifying indirect blocks for the
dedup table multiple times per txg. In addition, changes were made to
the formula for how much to sync per txg. We now also consider the
backlog we have to clear, to prevent it from growing too large, or
remaining large on an idle system.

Sponsored-by: Klara, Inc.
Sponsored-by: iXsystems, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Authored-by: Don Brady <don.brady@klarasystems.com>
Authored-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17038
This commit is contained in:
Paul Dagnelie
2025-03-13 10:47:03 -07:00
committed by GitHub
parent 084531bcce
commit 1b495eeab3
13 changed files with 366 additions and 202 deletions
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include/sys/vdev.h
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@@ -171,6 +171,7 @@ extern void vdev_queue_change_io_priority(zio_t *zio, zio_priority_t priority);
extern uint32_t vdev_queue_length(vdev_t *vd);
extern uint64_t vdev_queue_last_offset(vdev_t *vd);
extern uint64_t vdev_queue_class_length(vdev_t *vq, zio_priority_t p);
extern boolean_t vdev_queue_pool_busy(spa_t *spa);
extern void vdev_config_dirty(vdev_t *vd);
extern void vdev_config_clean(vdev_t *vd);