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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-11-04 19:44:12 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-12-11 19:31:46 +0100 |
| commit | d5f546d834ddc44539651e9955eb3577b0a3eb8b (patch) | |
| tree | 8262c6af876ff49d7f60772690255588b8833bd5 /Documentation/RCU | |
| parent | rcu: Permit RCU_FAST_NO_HZ to be used by TREE_PREEMPT_RCU (diff) | |
| download | linux-d5f546d834ddc44539651e9955eb3577b0a3eb8b.tar.xz linux-d5f546d834ddc44539651e9955eb3577b0a3eb8b.zip | |
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')
| -rw-r--r-- | Documentation/RCU/torture.txt | 5 |
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. |