但是，yacc可以预读一个字符，所以。
执行预读和后写请求都需要用到该守护进程。
This daemon is required to perform both read-ahead and write-behind requests.
另外相似例程预读等可在同一个文件找到。
Other similar routines (for read ahead for example) can be located in the same file.
预读编辑功能。
内向型：提供一些预读材料，因为内向的人需要时间来处理信息。
Introverts: provide some pre-reading because introverts need time to process data.
当网页滚动至约一半高度时，预读下一页的网页内容，包括网页文本及图片等。
When the page scroll to about half height, prefetch the next page page content, including text, image and other object.
可以对医疗监护信息预读，发现问题，直接通知家庭其他成员，达到及时救护的目的。
Moreover, it can further detect symptoms of a person by pre-reading collected information, and directly notify his family of the symptoms for prompt treatment.
在数控铣微直线加工程序预读、直线段间平滑算法的基础上，提出了线性变换圆弧平滑算法。
On the base of the program pre-reading and the smooth algorithm between lines for micro-beeline machining of CNC milling, the arc smooth algorithm with linear transformation is brought forward.
然而，有一种预读，的确可以加深你对一部名著的理解，就是预读名著作者本人读过的其他名著。
There is one kind of prior reading, however, which does help you to read a great book, and that is the other great books the author himself read.
两者都有：都要兼顾，为所有人提供预读材料(只有内向的人会读)，并预留大量的时间进行讨论。
Both: do both - provide pre-reading to all (only the introverts will read it) and allow plenty of time for discussion.
而且，对于那些受益于文件系统预读功能或者较高缓冲区缓存命中率的应用程序，可能会出现性能的降低。
Further, applications that might benefit from having a file system read ahead or high buffer cache hit rates might actually see performance degradation.
可能由于短区段而增加操作时间的操作包括：查找区段、逻辑地址到物理地址的映射、轻量扫描、存档、预读、以及检查点刷新。
The operations that may take longer with short extents include: finding extents, mapping logical to physical addresses, light scans, archives, read-ahead, and checkpoint flush.
在读取方面使用中间内核缓冲区，可以允许内核缓冲区在应用程序不需要内核缓冲区内的全部数据时，充当 “预读高速缓存（readahead cache）” 的角色。
Using the intermediate buffer on the read side allows the kernel buffer to act as a "readahead cache" when the application hasn't asked for as much data as the kernel buffer holds.
预取活动可以通过异步和同步的读I/O来确认。
The prefetching activity can be validated by the amount of asynchronous versus synchronous read I/O.
rw参数，使用它指明预抓取数据是为了执行读操作，还是执行写操作。
The rw parameter, which you use to indicate whether the data is being pulled in for Read or preparing for a Write operation.
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.
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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