A Perception-based Reconfigurable Architecture For Web Service

The improvement of Web services mainly relies on the advance of architecture for generalcomputing. However, the characteristics of Web service do not match the architecture optimizedfor general computing. It results in a little improvements of Web service than expected.The throughput of Web service blows up over the Internet. The data center enlarges its scaleand introduces multiple layers to make service available with commodity server. Therefore itresults in a severe consequence–energy problem. Multi-core processor, prefetched cache, andfront accelerator are proposed as a part of solution to Web service. They relieve the energyproblem within a small extent. It is rare that Web service is researched from a point of view ofarchitecture. A partial acceleration cannot solve the energy trouble. It is reported that theutilization of CPU is lower than10%in data center.Our research is driven by application. Web service is I/O, storage, and computationintensive with the analysis of several typical applications. The architecture for generalcomputation cannot accommodate the diversity of Web service applications. It is the root of lowefficiency. The aim is to find an efficienty archteture for Web service. Our contrib utions can besummarized as follows:1. Proactive Reconfigurable Web service Architecture (PRWA) is proposed as a solution. Aformal model of PRWA is established. Its architecture and working mechanism are clarified. Thehigh-performance characteristics of the PRWA architecture are demonstrated. PRWA is a goodsolution to application-oriented high-performance computing and services, which has a strongtheoretical impacts and practical references.2. HRWA (Hybrid Reconfigurable Web service Array) is proposed. The computationfeatures and computing particles of Web service are summarized. A framework is put forward toextract computing particles of Web service. Then a method called BBC is designed within theframework. Futhermore, a HRWA with a set of some typ ical Web particles is implemented onFPGA to verify our idea. It is proved to be efficient for Web service.3. SHSA (smart hybrid storage architecture) is proposed based on the analysis of thecharacteristics of storage access. It is evaluated with two app lications, word count and streamingmedia service. The results show that SHSA is efficient for Web service.4. A testbed is designed for evaluation based on PRWA model. It obtains a speedup ofperformance more than ten times than that of a common Web server with our experiments.