多层Client/Server结构软件性能评价

Performance Assessment of Multi Client/Server Architectural Software

针对多层Client/Server性能评价中,现有方法没有考虑进程“同步”的缺陷,提出一种“同步”马尔科夫链概念;证明了两个马尔科夫链“同步”后仍然具有半马尔科夫特性,从而给出基于半马尔科夫链的多层Client/Server软件性能模型.结合国家科技攻关课题,对三层事务处理模型的性能评价进行讨论,并应用Microsoft提供的性能评价器验证计算结果,比较表明了两者的一致性.

Respecting the lack of synchronization issue involved in performance assessment of multi Client/Server software, a new concept called synchronizing markov link is proposed. It is proved that one process with Markov property must has Semi-Markov property after synchronizing with others. Based on Semi-Markov property a new performance model of multi Client/Server software is proposed. Combining the project of national scientific research plan an application under 3-tiger transaction processing model is deeply discussed, performance item of throughput of the application software is assessed. In older to verify the validity an experiment is also designed too that employs Microsoft performance explorer simulates same application. Two results are nearly same.