此时间间隔的默认值为单个指令周期(10毫秒)。
The default value for this interval is a single clock tick (10 milliseconds).
如果您希望每隔一定时间拍摄快照，请在-options指令后以毫秒为单位指定间隔时间。
If you want snapshots taken at regular intervals, specify the intervals in milliseconds following the -options command.
当用户指定的时间间隔结束时，Tprof 将这些指令按进程、线程、模块和子例程进行分组。
When the user-specified interval is over, Tprof groups the instructions together by process, thread, module, and subroutine.
当用户指定的时间间隔结束时，Tprof 将这些指令按进程、线程、模块和子例程进行分组。
When the user-specified interval is over, Tprof groups the instructions together by process, thread, module, and subroutine.
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