仅是为了说明，让我们来做这样的一个假设，即在返回工作之后，恢复上下文需要的时间长度是暂停时间的50%。

Just to illustrate, let's assume that it takes 50% of the length of the pause to recover the context after getting back to work.

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选择完整的恢复并返回到活跃状态。

Choose the complete restore and return to the active state.

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之后再恢复堆栈框架并返回。

Then you restore the stack frame and return.

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