【摘要】 根据Web缓存流量访问特征建立数学模型,设计实现了Web缓存流量特征模拟生成器(WebSimGen)。利用两层代理缓存结构、基于ADF(Aggregation、Disaggregation和Filtering)模型对Web缓存流量的访问特征和性能进行测试,实验表明模拟日志具有和真实日志类似的访问特性。Web生成器具有较大的灵活性,能够克服真实日志的一些缺点,为进一步提高Web缓存性能和预取技术提供了重要依据。更多还原

【Abstract】 A synthetic Web workload generator (WebSimGen) was designed and implemented based on the mathematic model established by Web characteristics. The simulated experiments made use of two-level proxy caching and ADF (Aggregation, Disaggregation and Filtering) model to evaluate the reference characteristics and performance of synthetic Web workload, which showed that the synthetic workload had the similar performance characteristics with the real traces. The generator has the advantage of flexibility and can overcome some disadvantages of the real traces, so it can provide an important basis for further improving Web caching performance and prefetching technology.更多还原