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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-05-08 19:20:34 +0300
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-07-13 01:42:01 +0300
commit028be12b294e3a059e6fc06852d458fdc82717ed (patch)
tree3badc19b49a12f727701d129dfb5c609ceff6a3e /Documentation/admin-guide
parentf2e2df59786d7bd52e6e7e2d10c1c6ba433a0ee7 (diff)
downloadlinux-028be12b294e3a059e6fc06852d458fdc82717ed.tar.xz
rcutorture: Change units of onoff_interval to jiffies
Some RCU bugs have been sensitive to the frequency of CPU-hotplug operations, which have been gradually increased over time. But this frequency is now at the one-second lower limit that can be specified using the rcutorture.onoff_interval kernel parameter. This commit therefore changes the units of rcutorture.onoff_interval from seconds to jiffies, and also sets the value specified for this kernel parameter in the TREE03 rcutorture scenario to 200, which is 200 milliseconds for HZ=1000. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index efc7aa7a0670..77bd3e635313 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3632,8 +3632,8 @@
Set time (s) after boot for CPU-hotplug testing.
rcutorture.onoff_interval= [KNL]
- Set time (s) between CPU-hotplug operations, or
- zero to disable CPU-hotplug testing.
+ Set time (jiffies) between CPU-hotplug operations,
+ or zero to disable CPU-hotplug testing.
rcutorture.shuffle_interval= [KNL]
Set task-shuffle interval (s). Shuffling tasks