交互相关的理论

[oakland]

In this article, the author says that:

Users enjoy fast and responsive user interfaces (UI). A UI response delay of fewer than 100 milliseconds feels instant to the user but a delay between 100 and 300 milliseconds is already perceptible.

Pay attention to this delay

在 CSAPP 的第一章中就看到了这样的内容

This book is written for programmers who want to get better at their craft by understanding how these components work and how they affect the correctness and performance of their programs.

这里有两个词要注意一下，一个是 correctness，另一个是 perfomance，也就是说其实程序追求的也就是这两个目标。做业务也是一样的。先让业务能正常运转起来，然后再让业务能更高效的运转起来。