rcutorture: Add a test_boost_holdoff module parameter

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This commit adds a test_boost_holdoff module parameter that tells the RCU
priority-boosting tests to wait for the specified number of seconds past
the start of the rcutorture test.  This can be useful when rcutorture
is built into the kernel (as opposed to being modprobed), especially on
large systems where early start of RCU priority boosting can delay the
boot sequence, which adds a full CPU's worth of load onto the system.
This can in turn result in pointless stall warnings.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

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Paul E. McKenney 2024-11-13 15:00:16 -08:00 • committed by Boqun Feng

parent 623b52802b

commit b8726c5aa6

2 changed files with 21 additions and 3 deletions

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5

Documentation/admin-guide/kernel-parameters.txt

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19

kernel/rcu/rcutorture.c

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