State dependent optimization for sequential booting of heterogeneous systems

摘要

A method and computer program product for implementing the method, where the method comprises obtaining boot dependencies among a plurality of systems, wherein a boot dependency identifies a dependent system, a service system that provides a service to the dependent system, a provide state of the service system, and a need state of the dependent system that requires the service system to have reached the provide state. The method further comprises obtaining historical measurements of the time periods between states for each of the systems. Then, during a process of booting the plurality of systems, the method initiates boot of each dependent system at a time that is determined, based on the historical measurements, to allow the dependent system to reach the need state no earlier than the time at which the service system is determined, based on the historical measurements, to reach the provide state.

主权项

1. A method, comprising:
obtaining boot dependencies among a plurality of systems, wherein a boot dependency identifies a dependent system, a service system that provides a service to the dependent system, a provide state of the service system, and a need state of the dependent system that requires the service system to have reached the provide state; obtaining historical measurements of the time periods between states for each of the systems; and during a process of booting the plurality of systems, initiating boot of each dependent system at a time that is determined, based on the historical measurements, to allow the dependent system to reach the need state no earlier than the time at which the service system is determined, based on the historical measurements, to reach the provide state; wherein the boot of each dependent system is initialized at a state arrival time differential following the initialization of the service computer system, and wherein the state arrival time differential is the difference between the cumulative time for the service system to reach the provide state required by the dependent system and the cumulative time for the dependent system to reach the need state.