So several factors can cause slowdowns: the CPU is busy, the application is doing too much I/O, it is waiting for I/O to complete, or some combination.
所以有多个因素可能导致速度降低：CPU繁忙、应用程序做的I/O过多、等待 I/O完成或上述情况的某种组合。
So several factors can cause slowdowns: the CPU is busy, the application is doing too much I/O, it is waiting for I/O to complete, or some combination.
所以有多个因素可能导致速度降低：CPU繁忙、应用程序做的I/O过多、等待 I/O完成或上述情况的某种组合。
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