CPW (Commercial Processing Workload) is a measure used in IBM's AS/400 and iSeries line of computers to compare computer system models in terms of how efficiently each system processes a typical workload of commercial applications involving frequent database access. The CPW also represents a test of database commitment control, concurrent data access by many users, and a range of updating complexity.
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Another IBM measure, CIW (Compute Intensive Workload) is used to compare systems in terms of their ability to handle applications in which relatively more work is done within the application than by the system in performing database access.