一种针对浏览器并发连接限制的 Web前端性能优化算法

摘要

When the number of connection requests initiated simultaneously by the users exceeds the limited number of concurrent connections in browser , different request sending sequence to browser will yield varied waiting time for users .In order to effectively decrease users’ waiting time, in this paper we propose an evaluation model for the scheduling weights of connection requests , and then develop a scheduling request algorithm called SACC based on the model .Demonstrated by the experiment , this algorithm can reduce the TDD index and the TSR index of Web pages effectively .The average decreasing amplitudes reach the levels of 13% and 25% respectively on experimental platform of IE 7.%当用户同时发起的连接请求数大于浏览器的并发连接限制数时，不同的请求发送顺序对应不同的用户等待时间。为了有效减少用户的等待时间，提出一种连接请求调度权值的计算模型，并在该模型的基础上提出一种请求调度算法SACC。实验证明，该算法能够有效降低网页的TDD、TSR指标，在实验平台IE 7中，平均降幅分别达13％、25％。