ping_pong — measures the ping-pong byte range lock latency
ping_pong { -r | -w | -rw } [-m] [-c] {FILENAME} {NUM-LOCKS}
ping_pong measures the byte range lock latency. It is especially useful on a cluster of nodes sharing a common lock manager as it will give some indication of the lock manager's performance under stress.
FILENAME is a file on shared storage to use for byte range locking tests.
NUM-LOCKS is the number of byte range locks, so needs to be (strictly) greater than the number of nodes in the cluster.