Sever Performance Degradation Analysis Based on Average Load Chaotic Time Series Forecast
A long-running Web software system may lead to the exhaustion of resources, which cause performance degradation. To solve that problem, needs to predict the crucial resources using situation, and then carry out the proper software rejuvenation strategies. At first, this paper identify the average load chaotic character which can be described by using G-P algorithm to analyze correlation dimension changing with embedding dimension, then get the largest Lyapunov exponent through small data method and build chaotic time series prediction model based on largest Lyapunov exponent for average load time series. The experimental results show that the prediction model can precisely make short-time prediction to the Web servers load, which can efficiently estimate the performance degradation situation and provide foundation for the software rejuvenation.
performance degradation time series average load software rejuvenation
Junwei Ge Shanfeng Chen Yiqiu Fang
College of software Chongqing Univ.of Posts and Telecom.Chongqing 400065, China College of Computer Chongqing Univ.of Posts and Telecom.Chongqing 400065, China
国际会议
太原
英文
220-223
2010-10-22(万方平台首次上网日期,不代表论文的发表时间)