An Architectural Evaluation of Java TPC-W

  • Authors:
  • Morris Marden

  • Affiliations:
  • -

  • Venue:
  • HPCA '01 Proceedings of the 7th International Symposium on High-Performance Computer Architecture
  • Year:
  • 2001

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Abstract

Abstract: The use of the Java prog amming language for implementing server-side application logic is increasing in popularity,yet there is very little known about the architectural requirements of this emerging commercial workload.We present a detailed characterization of the Transaction Processing Council 's TPC-W web benchmark,implemented in Java.The TPC-W benchmark is designed to exercise the web server and transaction processing system of a typical e-commerce web site.We have implemented TPC-W as a collection of Java servlets,and present an architectural study detailing the memory system and branch predictor behavior of the workload.We also evaluate the effectiveness of a coarse-grained multithreaded processor at increasing system throughput using TPC-W and other commercial workloads.We measure system throughput improvements from 8%to 41% for a two context processor, and 12%to 60% for a four context uniprocessor over a single-threaded uniprocessor,despite decreased branch prediction accuracy and cache hit rates.