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| author | Ingo Molnar <mingo@kernel.org> | 2014-07-16 13:49:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-07-17 11:34:01 +0200 |
| commit | 01c9db827146ce321562a992a5dbc1a49b1a99ce (patch) | |
| tree | 2014c68991343e5b7ddf0408c2527ff08038e08d /Documentation/kernel-parameters.txt | |
| parent | 1795cd9b3a91d4b5473c97f491d63892442212ab (diff) | |
| parent | 187497fa5e9e9383820d33e48b87f8200a747c2a (diff) | |
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:
* Update RCU documentation.
* Miscellaneous fixes.
* Maintainership changes.
* Torture-test updates.
* Callback-offloading changes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c1b9aa8c5a52..6439c9380198 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2790,6 +2790,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. leaf rcu_node structure. Useful for very large systems. + rcutree.jiffies_till_sched_qs= [KNL] + Set required age in jiffies for a + given grace period before RCU starts + soliciting quiescent-state help from + rcu_note_context_switch(). + rcutree.jiffies_till_first_fqs= [KNL] Set delay from grace-period initialization to first attempt to force quiescent states. @@ -2801,6 +2807,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. quiescent states. Units are jiffies, minimum value is one, and maximum value is HZ. + 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.qhimark= [KNL] Set threshold of queued RCU callbacks beyond which batch limiting is disabled. |