path: root/Documentation/RCU
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authorPaul E. McKenney <paul.mckenney@linaro.org>2011-11-04 11:44:12 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-12-11 10:31:46 -0800
commitd5f546d834ddc44539651e9955eb3577b0a3eb8b (patch)
tree8262c6af876ff49d7f60772690255588b8833bd5 /Documentation/RCU
parentb807fbff3102bcac76ed9157d834dc20bb3d133b (diff)
rcu: Add rcutorture system-shutdown capability
Although it is easy to run rcutorture tests under KVM, there is currently no nice way to run such a test for a fixed time period, collect all of the rcutorture data, and then shut the system down cleanly. This commit therefore adds an rcutorture module parameter named "shutdown_secs" that specified the run duration in seconds, after which rcutorture terminates the test and powers the system down. The default value for "shutdown_secs" is zero, which disables shutdown. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/RCU')
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index 783d6c134d3f..af40929e1cb0 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -66,6 +66,11 @@ shuffle_interval
to a particular subset of the CPUs, defaults to 3 seconds.
Used in conjunction with test_no_idle_hz.
+shutdown_secs The number of seconds to run the test before terminating
+ the test and powering off the system. The default is
+ zero, which disables test termination and system shutdown.
+ This capability is useful for automated testing.
stat_interval The number of seconds between output of torture
statistics (via printk()). Regardless of the interval,
statistics are printed when the module is unloaded.

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