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Darwin disk I/O - better interactive response

I claim that in a personal computer such as the Mac (as opposed to a time-shared batch-ish system such as unix), fast interactive response to the most-recent user interface gesture should be highest priority (after hard real-time requirements have been met, such as playing a sound file without interruption).

I further claim that the above goal requires that disk I/O scheduling be prioritized and preemptive, just as processor scheduling is, even more importantly because of the vastly slower performance of disk vs. cpu.

Dave



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