| 摘要 |
A method and system for predicting performance and capacity of an information technology (IT) system before the IT system is built, where the predicting uses a database of performance statistics measured for reusable software modules. A performance simulation modeling tool receives a set of performance statistics of a test computer. The set of performance statistics is associated with a set of software modules included in a library of reusable software modules. The set of software modules is required to build a target IT system. The set of performance statistics is received from a database of performance statistics resulting from individual executions on the test computer of each reusable software module in the library. The performance simulation modeling tool predicts computing resources required by the target IT system. The computing resources prediction follows the receipt of the set of performance statistics and precedes the target IT system being built.
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