[PATCH] rcu batch tuning

[safe/jmp/linux-2.6] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7520539..bad5987 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1284,6 +1284,19 @@ running once the system is up.
                        New name for the ramdisk parameter.
                        See Documentation/ramdisk.txt.
 
+       rcu.blimit=     [KNL,BOOT] Set maximum number of finished
+                       RCU callbacks to process in one batch.
+
+       rcu.qhimark=    [KNL,BOOT] Set threshold of queued
+                       RCU callbacks over which batch limiting is disabled.
+
+       rcu.qlowmark=   [KNL,BOOT] Set threshold of queued
+                       RCU callbacks below which batch limiting is re-enabled.
+
+       rcu.rsinterval= [KNL,BOOT,SMP] Set the number of additional
+                       RCU callbacks to queued before forcing reschedule
+                       on all cpus.
+
        rdinit=         [KNL]
                        Format: <full_path>
                        Run specified binary instead of /init from the ramdisk,