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| author | Alexander Motin <[email protected]> | 2023-10-20 15:37:16 -0400 |
|---|---|---|
| committer | GitHub <[email protected]> | 2023-10-20 12:37:16 -0700 |
| commit | 4fbc52495552b7e8b3337c94d0b7080db65657b8 (patch) | |
| tree | d0b2ccca968b7bd1b82022b456b5b330fa8b9190 /module/zfs/vdev_raidz_math_impl.h | |
| parent | de7b1ae30ab83c37978902dfd53c1ac783ddbc6e (diff) | |
Remove lock from dsl_pool_need_dirty_delay()
Torn reads/writes of dp_dirty_total are unlikely: on 64-bit systems
due to register size, while on 32-bit due to memory constraints.
And even if we hit some race, the code implementing the delay takes
the lock any way.
Removal of the poll-wide lock acquisition saves ~1% of CPU time on
8-thread 8KB write workload.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Alexander Motin <[email protected]>
Sponsored by: iXsystems, Inc.
Closes #15390
Diffstat (limited to 'module/zfs/vdev_raidz_math_impl.h')
0 files changed, 0 insertions, 0 deletions