Performance of Networked XML-Driven Co-Operative Applications

Web services are an emerging software technology that employ XML, e.g., W3C’s SOAP [1], to share and exchange data. They are a building block of co-operative applications that communicate using a network. They may serve as wrappers for legacy data sources, integrate multiple remote data sources, filter information by processing queries (function shipping), etc. Web services are based on the concept of “software and data as a service.” With those that interact with an end user, a fast response time is the difference between the following two scenarios: (1) users issuing requests, retrieving their results, and visiting the service repeatedly, and (2) users issuing requests, waiting for response and walking away prior to retrieving their results, with a lower likelihood of issuing future requests for this web service. One may employ a middleware to enhance performance by minimizing the impact of transmission time. This is accomplished by compressing messages. This paper identifies factors that this middleware must consider in order to reduce response time. In particular, it must ensure the overhead of compression (increased CPU time) does not exceed its savings (lower transmission time).

[1]  Ramesh Govindan,et al.  Heuristics for Internet map discovery , 2000, Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064).

[2]  David A. Patterson,et al.  Proceedings of the 21st Annual International Symposium on Computer Architecture. Chicago, IL, USA, April 1994 , 1994, ISCA.

[3]  Srinivasan Seshan,et al.  RAID-II: a high-bandwidth network file server , 1994, ISCA '94.

[4]  Abraham Lempel,et al.  A universal algorithm for sequential data compression , 1977, IEEE Trans. Inf. Theory.

[5]  Balakrishna R. Iyer,et al.  Data Compression Support in Databases , 1994, VLDB.

[6]  Regina Dunlea,et al.  Simple Object Access Protocol (SOAP) , 2005 .

[7]  Sally Floyd,et al.  Simulation-based comparisons of Tahoe, Reno and SACK TCP , 1996, CCRV.

[8]  Meikel Pöss,et al.  New TPC benchmarks for decision support and web commerce , 2000, SGMD.

[9]  FloydSally,et al.  Simulation-based comparisons of Tahoe, Reno and SACK TCP , 1996 .

[10]  Vern Paxson,et al.  End-to-end Internet packet dynamics , 1997, SIGCOMM '97.

[11]  Dan Suciu,et al.  XMill: an efficient compressor for XML data , 2000, SIGMOD '00.

[12]  David S. Platt,et al.  Introducing Microsoft® .NET , 2001 .

[13]  David A. Patterson,et al.  Maximizing performance in a striped disk array , 1990, ISCA '90.