Statistics. with Wall Clock Time(Period wallClockTime) 方法
Set the wall clock time is the elapsed time from when the task started running on a compute node to when it finished (or to the last time the statistics were updated, if the task had not finished by then). If the task was retried, this includes the wall clock time of all the task retries.
public TaskStatistics withWallClockTime(Period wallClockTime)
the wallClockTime value to set
the TaskStatistics object itself.