V2EX write-through

Write-Through

定义 Definition

(计算机)直写式(缓存)/ 写穿(策略):一种缓存写入策略,数据一旦写入缓存(cache),会立刻同步写入后端存储(如主存、磁盘或数据库),以提高一致性与可靠性(通常以写入性能为代价)。

发音 Pronunciation

/rat θru/

例句 Examples

Use write-through caching for critical data.
对关键数据使用直写式缓存。

In a distributed system, write-through can simplify consistency by ensuring every cache update is immediately persisted, but it may increase latency under heavy write loads.
在分布式系统中,直写策略通过确保每次缓存更新都立刻持久化来简化一致性问题,但在大量写入时可能会增加延迟。

词源 Etymology

write-through 是由动词 write(写入)+ 副词 through(贯穿到底、一直到后端)组合而成的技术复合词。其含义直观表达“写入会一路贯穿到最终存储”,常用于缓存与存储系统的语境中。相关概念通常与 write-back(回写)相对。

相关词 Related Words

文学作品与著名出处 Literary Works

  • Computer Architecture: A Quantitative Approach(Hennessy & Patterson)
  • Operating Systems: Three Easy Pieces(Remzi & Andrea Arpaci-Dusseau)
  • Designing Data-Intensive Applications(Martin Kleppmann)
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