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车东
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4:11
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车东
The Deadline elevator uses a deadline algorithm to minimize I/O latency for a given I/O request. The scheduler provides near real-time behavior and uses a round robin policy to attempt to be fair among multiple I/O requests and to avoid process starvation
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3:53
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车东
当然，应用性能优化的至理名言是：两次测量，一次剪裁（measure twice, cut once）。哦，等等，这是对木工而言的！没错，但是它在这里也很适用！
