Importance

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Abstract

A method for developing system resource usage 'cost' equations, creating models based upon such cost equations, and estimating total system resource usage and computer program product incorporating such cost equations. A server application is analyzed and certain transactions are defined therein that occur in response to interaction with a client application that in many instances originates from user behavior. System resources are also identified and resource usage measurements are determined for each transaction. One way of determining the resource usage measurements is by creating a load of a particular transaction on an 'instrumented' server application and measuring the resources used in connection with the transaction. Cost equations for each type of system resource can then be constructed taking a component from each transaction that uses a particular system resource so that the cost equations are defined in terms of transactions. By reducing user behavior to transactions, accurate estimates of total hardware resource usage for a server application in a particular scenario can be easily attained.

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First Claim