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Update description of spl_schedule_hrtimeout_slack_us

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Clarify the effect of the non-zero value on wakeup coalescing.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Christos Longros <chris.longros@gmail.com>
Closes #18467
This commit is contained in:
Christos Longros
2026-05-02 19:58:07 +02:00
committed by Brian Behlendorf
parent b68c782d82
commit 5dd912192d
1 changed files with 1 additions and 1 deletions
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man/man4/spl.4
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@@ -134,7 +134,7 @@ Set to a non-zero value to enable.
Slack value in microseconds passed to
.Fn schedule_hrtimeout_range
when a condition variable times out.
A non-zero value lets the kernel coalesce the wakeup with other timers
A non-zero value enforces the kernel coalesce the wakeup with other timers
to reduce wakeup count, at the cost of some additional sleep duration.
The maximum is
.Sy 1000 ,