V2EX best-effort

Best-effort

定义 Definition

“best-effort”指“尽力而为的;尽最大努力的”。常见于技术、服务与合同语境,表示不保证结果,但会在合理范围内投入努力(如“best-effort delivery 尽力交付/尽力传输”)。在网络通信中也常指不提供严格保障(例如不保证时延、丢包率或带宽)的传输方式。

发音 Pronunciation

/bst frt/

例句 Examples

We’ll provide best-effort support during the weekend.
我们会在周末提供尽力而为的支持(但不保证一定解决)。

The system uses best-effort delivery, so packets may be delayed or lost under heavy traffic.
该系统采用尽力传输方式,因此在高负载流量下数据包可能会延迟或丢失。

词源 Etymology

“best-effort”由 best(最好的)+ effort(努力) 组合而来,字面义为“最好的努力”。在现代英语中逐渐固定为复合形容词,尤其在商业与工程语境中表示“尽力而为但不作结果担保”,与“guaranteed(保证的)”形成对比。

相关词 Related Words

文学与著名作品 Literary Works

  • RFC 2119: Key words for use in RFCs to Indicate Requirement Levels(IETF,提到“best effort”等概念以区分要求级别与非保证性行为)
  • RFC 791: Internet Protocol(IETF,讨论互联网服务模型时常与“best-effort service/ delivery”相关联)
  • Andrew S. Tanenbaum & David J. Wetherall, Computer Networks(计算机网络经典教材,常用“best-effort”描述互联网的服务特性)
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