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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-05-08 09:20:34 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-07-12 15:42:01 -0700
commit028be12b294e3a059e6fc06852d458fdc82717ed (patch)
tree3badc19b49a12f727701d129dfb5c609ceff6a3e /tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
parentrcu: Add diagnostics for offline CPUs failing to report QS (diff)
downloadlinux-dev-028be12b294e3a059e6fc06852d458fdc82717ed.tar.xz
linux-dev-028be12b294e3a059e6fc06852d458fdc82717ed.zip
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 'tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh')
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
index 24ec91041957..7bab8246392b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
@@ -39,7 +39,7 @@ rcutorture_param_onoff () {
if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
then
echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
- echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
+ echo rcutorture.onoff_interval=1000 rcutorture.onoff_holdoff=30
fi
}