When the prefetch quantity is changed.
当预取数量发生变化时。
After the prefetch size has been changed.
更改了预取(prefetch)大小之后。
But be careful: Don't go overboard and prefetch everything in sight, or you'll make things worse!
但是要注意：不要太过分，不要预抓取所有东西，否则会适得其反！
Non-prefetch I/Os are scheduled directly from the database agents and as a result are not constrained by NUM_IOSERVERS.
由于从数据库代理程序直接调度非预取I/O，因此非预取 I/O不受 NUM_IOSERVERS 约束。
And finally, whenever a user picks a country and region, prefetch the first two pages just in case, as shown in Listing 4.
最后，当用户选择一个国家和地区时，预抓取前两个页面以备显示，见清单4。
Some pre-processing may also be associated with the data prefetch.
可以将一些预处理与数据预取相关联。
When the external agent has data, it may create and issue a prefetch directive.
当外部代理具有数据时，产生并发出预取指令。
This recovery process instantly begins to prefetch dirty pages from the centralized buffer pool into its own local buffer pool.
这个恢复进程立即开始将脏页从集中式缓冲池预取到它自己的本地缓冲池。
Note that if the code asks to prefetch an already-fetched page, the implemented logic avoids making unnecessary, redundant calls to the server.
注意，如果代码请求预抓取已经获得的页面，实现的逻辑会避免不必要的服务器调用。
Based on the query pattern and the real query parameters, it developed two intelligent prefetch algorithms to fit two kinds of demand in data query.
基于这些模板和参数，提出了两种智能预取算法以适应两类不同的数据查询需求。
The prefetch directive may be sent along with system interconnection transactions or sent as a separate transaction to devices including the target processor in the system.
该预取指令可以与系统互连事务一起或作为单独的事务发送到系统中包括所述目标处理器的设备。
Since prefetch distance is not a well-defined metric, for this discussion, we define a new term, prefetch scheduling distance (PSD), which is represented by the number of iterations.
由于预取距离不是一个明确的指标，为了讨论，我们定义一个新的术语，预取调度距离（PSD），它是由迭代的次数反映。
Three basic load balance strategies on mapping applications onto GPU are presented: Prefetch, stream computing, task division.
针对GPU异构系统上的应用映射提出三种基本负载均衡优化策略：预取、流化、任务划分。
If DB2 were to use the index the nontraditional, LIST PREFETCH way, the rows would not come back in the order of the index, but rather in the order of the table.
如果DB 2以非传统方法(LIST PREFETCH方法)使用索引，这些行可能不能以索引次序返回，而是以表中的次序返回。
When DB2 does not have an index in the appropriate order for sort avoidance or when DB2 USES any index the LIST PREFETCH way, then an order BY will most certainly cause a data sort.
如果DB 2没有一个适当次序的索引可以避免排序，或者当DB 2以LIST PREFETCH方法使用任何索引时，那么一个ORDERBY必定会引起数据排序。
When DB2 does not have an index in the appropriate order for sort avoidance or when DB2 USES any index the LIST PREFETCH way, then an order BY will most certainly cause a data sort.
如果DB 2没有一个适当次序的索引可以避免排序，或者当DB 2以LIST PREFETCH方法使用任何索引时，那么一个ORDERBY必定会引起数据排序。
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