It spent most of its time waiting for the swap disk, thrashing like Emacs on a VAX.
大多数时间都花在等待交换磁盘上，就像VAX上的Emacs一样。
Meanwhile, its adaptive prefetching size can prevent read-ahead thrashing and reduce the disk energy consumption.
同时采用自适应的预取大小，能有效的避免预取抖动，降低磁盘能耗。
Meanwhile, its adaptive prefetching size can prevent read-ahead thrashing and reduce the disk energy consumption.
同时采用自适应的预取大小，能有效的避免预取抖动，降低磁盘能耗。
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