V2EX memory access

Memory Access

释义 Definition

内存访问:在计算机中对内存(如 RAM、缓存等)进行读(load/read)或写(store/write)数据的操作。常用于讨论程序性能(访问延迟、带宽、缓存命中/未命中等)。该短语在不同语境下也可泛指“对记忆的触及/访问”,但在现代英语中最常见的是计算机领域含义。

发音 Pronunciation (IPA)

/mmri kss/

例句 Examples

The program is slow because of frequent memory access.
这个程序很慢,因为它频繁进行内存访问。

Optimizing memory access patterns can reduce cache misses and significantly improve performance on modern CPUs.
优化内存访问模式可以减少缓存未命中,并在现代 CPU 上显著提升性能。

词源 Etymology

memory 源自拉丁语 memoria(“记忆”),access 源自拉丁语 accessus(“接近、进入”)。在计算机语境中,二者组合为 “memory access”,字面义即“对内存的进入/取用”,引申为对内存数据进行读取或写入的行为。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Computer Architecture: A Quantitative Approach(Hennessy & Patterson)讨论缓存、流水线与memory access对性能的影响
  • Operating System Concepts(Silberschatz 等)涉及虚拟内存、分页与内存管理中的memory access
  • Introduction to Algorithms(CLRS)在分析算法实际性能时常提到内存访问成本
  • The C Programming Language(Kernighan & Ritchie)通过指针与数组示例间接呈现内存访问方式与代价
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