System and method for modeling and provisioning information system capacity

摘要

Models of capacity of an information system are described. The models may be queried when a new session arrives at the information system, to determine whether to accept the session as is, demand new capacity from an alternate server in order to fulfill the session, or reject the session. The models employ feature vectors to represents states of the information system. Parameters in the feature vectors may include load measurements on CPUs in the information system; load measurements on memory in servers employed in the information system; transactions per second conducted in databases in the information system; rate at which requests arrive from referral URLs to the information system; number of sessions in the information system; CPU utilization in the information system; database utilization in the information system.