A Predictive Performance Model to Evaluate the Contention Cost in Application Servers

Conference · Wed Dec 04 04:00:00 EST 2002

OSTI ID:15004489

Chen, Shiping ^[1]; Gorton, Ian ^[2]

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1. CSIRO
2. BATTELLE (PACIFIC NW LAB)

In multi-tier enterprise systems, application servers are key components that implement business logic and provide application services. To support a large number of simultaneous accesses from clients over the Internet and intranet, most application servers use replication and multi-threading to handle concurrent requests. While multiple processes and multiple threads enhance the processing bandwidth of servers, they also increase the contention for resources in application servers. This paper investigates this issue empirically based on a middleware benchmark. A cost model is proposed to estimate the overall performance of application servers, including the contention overhead. This model is then used to determine the optimal degree of the concurrency of application servers for a specific client load. A case study based on CORBA is presented to validate our model and demonstrate its application.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15004489
• Report Number(s): PNNL-SA-37133
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
BUSINESS
COMPUTERS
COST
INTERNET
Middleware
Application Server
Performance
Cost Model
LSII
PERFORMANCE
PROCESSING