tree 2980d3f756a2ded6c2228a0e35f20b8e9c0f0e12
parent c829feccfb8b411d3c6db98ffaeb542fa0f0c08c
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1387414582 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1387414582 -0800

rcutorture: Print grace-period performance statistics

Sometime problems can manifest themselves as unusually slow grace periods.
This commit therefore prints the number of rcutorture updates during the
test and the number per second.  These statistics are harvested from the
config.out and qemu-cmd files, and are silently omitted if these files
are not available, as would be the case if there was a build failure or
a boot-time hang.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>