The receiver also wakes up periodically but adjusts its wakeup timer to the transmitter.

接收器一方面周期性地被唤醒，另一方面它会根据发送器调整定时时间。

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His motivation in working on the new scheduler was to create a completely o (1) scheduler for wakeup, context-switch, and timer interrupt overhead.

他编写这个新调度器的动机是为唤醒、上下文切换和定时器中断开销建立一个完全o(1)的调度器。

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