V2EX prefetch

Prefetch

释义 Definition

prefetch(动词)指在真正需要之前,提前获取/预先加载数据、资源或指令(常用于计算机系统、浏览器、缓存与网络请求),以减少等待时间、提升性能。

发音 Pronunciation

/prift/

例句 Examples

The app prefetches images so the gallery opens faster.
这个应用会预先加载图片,所以相册打开更快。

To reduce latency, the system prefetches frequently accessed records into memory before peak traffic begins.
为降低延迟,系统会在高峰流量开始前把常用记录预取到内存中。

词源 Etymology

由前缀 **pre-**(“在……之前”)+ fetch(“取来、抓取”)构成,字面意思是“提前取来”。该词在计算机领域中被广泛采用,用来描述在需求发生前先行加载数据的优化策略。

相关词 Related Words

文学作品 Literary Works

“prefetch”作为技术术语主要出现于计算机与工程类文本中,在传统文学作品中较少见;在以下技术写作中更常遇到:

  • Donald E. Knuth The Art of Computer Programming
  • Andrew S. Tanenbaum Modern Operating Systems
  • Martin Kleppmann Designing Data-Intensive Applications
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