A Dynamic Weight-Based Dynamic Requests Scheduling Model in Multi-core Web Server

Abstract

In order to improve performance of handling user requests, most of Web servers adopt multi-core processors. However, traditional requests scheduling algorithms, such as FCFS, don't consider the characteristics of multi-core processors and the distribution of the dynamic requests service time. Therefore, the scheduling algorithms couldn't fully exploit the performance of multi-core processors. To solve this problem, we proposed the new requests scheduling algorithm based on the dynamic weights of request queues. Simulation experiments have been done to evaluate the new algorithm. The experiment results show that the proposed algorithm could solve the load imbalance between cores in long period and avoid the problem of ping-pong effect in multi-core systems.