当单独使用WebSphere DataStage来实现时，从数据源取数据集所花费的时间在作业的总体执行时间中占较大比例。

Fetching the data sets from the data sources constitutes a reasonable amount of the overall elapsed time of the job when implemented using WebSphere DataStage alone.

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另一个独特的构架特性是内存系统，它允许一个取指，并在同一时间，每一个核可以读取数据在每一个单独的时钟周期内。

Another unique architectural feature is the memory system which allows an instruction fetch and at the same time a data access by each individual core at every single clock cycle.

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