2-5-8 Principles in performance testing

The 2-5-8 principle refers to the response time of the system

That is, when the user in 2 seconds to get a response, it will feel the system response quickly;

When the user in 2-5 seconds to get a response, you will feel the system response speed is also possible;

When the user gets a response within 5-8 seconds, the system responds slowly, but it can be accepted;

When the user is still unable to get a response after more than 8 seconds, he or she feels that the system is bad or that the system has lost its response, opting out of the Web site, or initiating a second request.

2-5-8 Principles in performance testing