V2EX round-trip time

Round-trip Time

定义 Definition

名词短语 指数据包从发送端传输到接收端,再从接收端返回发送端所需的总时间。常缩写为 RTT,广泛用于计算机网络和通信领域,也可泛指任何往返所需的时间。

发音 Pronunciation

/rand trp tam/

例句 Examples

The round-trip time between the client and server is less than 50 milliseconds.
客户端与服务器之间的往返时间不到50毫秒。

By optimizing our network infrastructure, we managed to reduce the round-trip time significantly, which improved the responsiveness of our real-time applications.
通过优化网络基础设施,我们大幅降低了往返时间,从而提升了实时应用的响应速度。

词源 Etymology

该短语由三个常见英语词组合而成。round trip 最早出现于19世纪中期,指"往返旅程",由 round(环绕、返回)和 trip(旅行)构成。后加上 time(时间),用来表示完成一次往返所需的时长。20世纪后半叶,随着计算机网络技术的发展,round-trip time 成为网络工程中的核心术语,专指数据包在网络中往返传输的延迟时间。

相关词汇 Related Words

文学与技术文献引用 Notable References

  • **"Computer Networking: A Top-Down Approach"**(James Kurose & Keith Ross) 计算机网络经典教材,详细讲解了 RTT 在 TCP 协议中的作用及其对传输性能的影响。
  • **"TCP/IP Illustrated, Volume 1"**(W. Richard Stevens) 网络协议权威著作,深入分析了 round-trip time 的测量方法及其在拥塞控制中的关键角色。
  • RFC 6298: "Computing TCP's Retransmission Timer" IETF 标准文档,定义了如何基于 round-trip time 的采样值来计算 TCP 的重传超时。
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