tree a4ab93782dfd777932d2128110a46b3536d51ebc
parent 7390a44197a960bd7188589a75599a160818e7a4
author buyingyi <buyingyi@gmail.com> 1378431452 -0700
committer buyingyi <buyingyi@gmail.com> 1378431452 -0700

set the test checkpointing peroid to be 2