Abstract: The ability of application server which is the infrastructure of the E-commerce has become a key matter of people's concerns. TPC-W, as a very popular E-commerce benchmark, mainly focuses on performance of application server and is lack of concerns on the QoS guarantees. We designed a QoS oriented E-commerce benchmark named Bench4Q. hhis benchmark has made many extensions of load simulation and metrics analysis of TPC-W specification.We showed the characteristic of Bench4Q by running it on representative application server.

Key words: Benchmark, Middleware, E-commerce, TPC-W