rcutorture: Make rcuperf collect expedited event-trace data
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 29 Jan 2016 22:58:17 +0000 (14:58 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 31 Mar 2016 20:38:53 +0000 (13:38 -0700)
commitac2bb275e8e5abddb0815ff2b7aa383ed6d007a4
treec9f879e07657c12b69995baf2850574872567326
parente588f35492227cc4ab2cbfe95fd5f993a5086f9f
rcutorture: Make rcuperf collect expedited event-trace data

This commit enables ftrace in the rcuperf TREE kernel build and adds
an ftrace_dump() at the end of rcuperf processing.  This data will be
used to measure the actual durations of the expedited grace periods
without the added delays inherent in the kernel-module measurements.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/rcuperf.c
tools/testing/selftests/rcutorture/configs/rcuperf/TREE