performance - 对于动态、个性化的 Web 应用程序来说，多长的响应时间才被认为是良好的响应时间？

Question

就目前情况而言，这个问题不太适合我们的问答形式。我们希望答案得到事实、引用资料或专业知识的支持，但这个问题可能会引发辩论、争论、民意调查或扩展讨论。如果您觉得这个问题可以改进并可能重新开放， visit the help center以获得指导。

已关闭 11 年前。

对于包含动态内容和个性化的复杂 Web 应用程序，服务器的最佳响应时间是多少(不包括网络延迟和浏览器渲染时间)？我正在考虑 Facebook、Amazon、MyYahoo 等网站。一个相关的问题是后端服务的最佳响应时间是多少？

Answer 1

对此有大量研究。这是 quick summary .

Response Times: The 3 Important Limits

by Jakob Nielsen on January 1, 1993

Summary: There are 3 main time limits (which are determined by human perceptual abilities) to keep in mind when optimizing web and application performance.

Excerpt from Chapter 5 in my book Usability Engineering, from 1993:

The basic advice regarding response times has been about the same for thirty years [Miller 1968; Card et al. 1991]:

• 0.1 second is about the limit for having the user feel that the system is reacting instantaneously, meaning that no special feedback is necessary except to display the result.
• 1.0 second is about the limit for the user's flow of thought to stay uninterrupted, even though the user will notice the delay. Normally, no special feedback is necessary during delays of more than 0.1 but less than 1.0 second, but the user does lose the feeling of operating directly on the data.
• 10 seconds is about the limit for keeping the user's attention focused on the dialogue. For longer delays, users will want to perform other tasks while waiting for the computer to finish, so they should be given feedback indicating when the computer expects to be done. Feedback during the delay is especially important if the response time is likely to be highly variable, since users will then not know what to expect.