内核使用收集的 CPU 使用量数据，可以根据优先级、当前 CPU 使用量和 CPU 限制调度或撤消运行进程。

The CPU usage thus gathered is used by the kernel, which may schedule or de-schedule a process based on its priority, current CPU usage, and CPU limits.

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打开状态的高优先级的变更请求：当前打开状态的高优先级的变更请求数量。

Open high-priority change requests: The number of high-priority change requests that are currently open.

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微软最高行政总裁史蒂文 鲍尔默说，开发与苹果iPad相抗争的平板式电脑是他们当前最优先考虑的项目。

Steve Ballmer, Microsoft's chief executive, said that developing a tablet-style computer to rival Apple's iPad was a top priority Photo: AP

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