V2EX i-o-bound

I/O-bound

释义 Definition

(计算机)I/O 密集型的;指程序/任务的性能主要受输入/输出(磁盘、网络、数据库等)速度限制,而不是受 CPU 计算能力限制(相对概念是 CPU-bound)。

发音 Pronunciation

/a.oband/

例句 Examples

The program is I/O-bound because it spends most of its time waiting for the disk.
这个程序是 I/O 密集型的,因为它大部分时间都在等待磁盘读写。

In an I/O-bound workload, adding more CPU cores often won’t help unless you also improve storage or network throughput.
在 I/O 密集型的工作负载中,增加更多 CPU 核心通常帮助不大,除非同时提升存储或网络吞吐量。

词源 Etymology

I/Oinput/output(输入/输出)的缩写;bound 在这里表示“受……所限制/约束”。合起来 I/O-bound 字面意思就是“被输入/输出限制的”,常用于操作系统、性能分析与并发编程语境。

相关词 Related Words

文学与著作 Literary Works

  • Operating System Concepts(Silberschatz, Galvin, Gagne)
  • Modern Operating Systems(Andrew S. Tanenbaum)
  • Computer Systems: A Programmer’s Perspective(Bryant & O’Hallaron)
  • The Linux Programming Interface(Michael Kerrisk)
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