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Proceedings Paper

Performance modeling for large database systems
Author(s): Stephen Schaar; Frank Hum; Joe Romano
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Paper Abstract

One of the unique approaches Science Applications International Corporation took to meet performance requirements was to start the modeling effort during the proposal phase of the Interstate Identification Index/Federal Bureau of Investigations (III/FBI) project. The III/FBI Performance Model uses analytical modeling techniques to represent the III/FBI system. Inputs to the model include workloads for each transaction type, record size for each record type, number of records for each file, hardware envelope characteristics, engineering margins and estimates for software instructions, memory, and I/O for each transaction type. The model uses queuing theory to calculate the average transaction queue length. The model calculates a response time and the resources needed for each transaction type. Outputs of the model include the total resources needed for the system, a hardware configuration, and projected inherent and operational availability. The III/FBI Performance Model is used to evaluate what-if scenarios and allows a rapid response to engineering change proposals and technical enhancements.

Paper Details

Date Published: 7 February 1997
PDF: 10 pages
Proc. SPIE 2940, National and International Law Enforcement Databases, (7 February 1997); doi: 10.1117/12.266296
Show Author Affiliations
Stephen Schaar, Science Applications International Corp. (United States)
Frank Hum, Science Applications International Corp. (United States)
Joe Romano, Science Applications International Corp. (United States)


Published in SPIE Proceedings Vol. 2940:
National and International Law Enforcement Databases
George Works, Editor(s)

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