数据预取 Data prefetch
高级数据预取 Enhanced Data Prefecher
预取操作数 [计] prefetched operand
预算管理取数公式 MGACCT
实验表明，采用顺序读预取策略的实际读平均数传率提高了60％，可以满足数字化系统对I/O性能的高要求。
Tests prove that the average data transfer rate of the RAID which uses the read prefetch policy increases! by 60 % , meeting the high requirement of I/O performance in digital systems.
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