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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-04-02 08:05:55 -0700
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-08-13 14:32:39 -0700
commitf7c612b000d7e974826089b5a6f6eecd6805862a (patch)
treef88ff60641463f4fa8ebd9da59997b4794c85f10 /Documentation/admin-guide
parentf7c9a9b664fb32a127e8e9a987b52023b92c3a0b (diff)
rcu/nocb: Rename rcu_nocb_leader_stride kernel boot parameter
This commit changes the name of the rcu_nocb_leader_stride kernel boot parameter to rcu_nocb_gp_stride in order to account for the new distinction between callback and grace-period no-CBs kthreads. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt13
1 files changed, 7 insertions, 6 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f3fcd6140ee1..79b983bedcaa 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3837,12 +3837,13 @@
RCU_BOOST is not set, valid values are 0-99 and
the default is zero (non-realtime operation).
- rcutree.rcu_nocb_leader_stride= [KNL]
- Set the number of NOCB kthread groups, which
- defaults to the square root of the number of
- CPUs. Larger numbers reduces the wakeup overhead
- on the per-CPU grace-period kthreads, but increases
- that same overhead on each group's leader.
+ rcutree.rcu_nocb_gp_stride= [KNL]
+ Set the number of NOCB callback kthreads in
+ each group, which defaults to the square root
+ of the number of CPUs. Larger numbers reduce
+ the wakeup overhead on the global grace-period
+ kthread, but increases that same overhead on
+ each group's NOCB grace-period kthread.
rcutree.qhimark= [KNL]
Set threshold of queued RCU callbacks beyond which