4、通过间隔计数(interval counting)来测量时间OS也用计时器(timer)来记录每个进程使用的累计时间,这种信息提供的是对程序执行时间不那么精确的测量值。
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通过比较Statrep . nsf中的各种文档,可以构建一个间隔历史,以记录在DPAR操作期间如何累计这些统计数字。
By comparing the various documents in Statrep.nsf, you can build an interval history of how these statistics have been accumulating during the DPAR's operation.
设计了一种高精度时间间隔测量模块,该模块由单片机控制,采用脉冲计数原理,通过测量时间间隔内高频参考时钟个数,得到被测时间间隔的精确值。
Based on pulse counting principle, the high precision time interval can be obtained by measuring the number of the high-frequency reference clock through it.
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