SYSTEM STATE CONTROLLER FOR ELECTRONIC IMAGE PROCESSING SYSTEMS

    公开(公告)号:CA2048792C

    公开(公告)日:1997-01-14

    申请号:CA2048792

    申请日:1991-08-08

    Applicant: XEROX CORP

    Abstract: A state controller for an electronic reprographic system for controlling system operations when processing requests in which the system has a plurality of hardware and software system components providing discrete services for processing requests and maintaining operation of the system, and job programming means including a display screen for inputting requests, including: a state holder for monitoring the current operating state of the system components; plural discrete job processing virtual machines with each of the virtual machines having at least one service associated with it for implementing the virtual machine; each of the services having at least one of the system components for carrying out the service; and a scheduler for managing resources of and setting priorities for the virtual machines to process the requests in an efficient manner, the scheduler being adapted to cause memory from a first one of the virtual machines to be distributed to a second one of the virtual machines when the second one of the virtual machines requests more memory than is normally allocated to it.

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