With the increase of the speed gap between I/O and CPU, it is more important to prefetch multi-objects for the OSC.
随着I/O速度与CPU速度差距的扩大,在对象存储控制器上进行对象预取变得越来越重要。
参考来源 - 对象存储控制器关键技术研究The principle of smoothing is ’work-ahead’, which means sending video data ahead of its playback time, and prefetch-ing frames into the clint buffer.
平滑的原理是通过“预取”的方式,即数据的传输早于播放的时间,将数据预先存入客户端的缓冲空间中。
参考来源 - 变码率视频的传输与播出策略研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Number of pages prefetched into the buffer pool, but never read.
预抓取到缓冲池，但从未读取的页面数量。
When the map is dragged, the prefetched data comes into view with no refresh latency.
当地图在改变的时候，更新的数据来自于没有刷新时间的视图。
The sampled pages are also prefetched, so this method would be faster than row-level Bernoulli sampling.
抽样页也是预取的，所以该方法将比行级贝努里(Bernoulli)抽样更快。
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