CPU power adjustment method
AssigneeHitachi, Ltd.
InventorsToyohisa Imada, Takuichi Hoshina
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Abstract
An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
Claims4
In a virtual machine system in which a plurality of virtual machines defined by users are operated for the users on a physical machine under a control program, a CPU power adjustment method comprising the steps of:
- storing arrangement information for said plurality of virtual machines in an arrangement information storage of said virtual machine system;
- and
- storing a CPU power coefficient in a CPU power storage of said virtual machine system, said CPU power coefficient indicating a CPU power rate of said virtual machine system assigned to said plurality of virtual machines;
- wherein said arrangement information includes user defined service rates, and
- wherein said method further comprises under said control program the steps of:
- entering each user-defined virtual machine in said arrangement information storage;
- and
- assigning a CPU service rate determined based on said CPU power coefficient multiplied by a user defined service rate of a user-defined virtual machine to activate said user-defined virtual machine.
A virtual machine system in which a plurality of virtual machines defined by users are operated for the users on a physical machine, comprising:
- an arrangement information storage storing arrangement information for said plurality of virtual machines;
- a CPU power storage storing a CPU power coefficient indicating a CPU power rate of said virtual machine system assigned to said plurality of virtual machines;
- wherein said arrangement information includes user defined service rates;
- and
- wherein each user-defined virtual machine operates based on said CPU power coefficient multiplied by a user defined service rate of a user-defined virtual machine.
Dependencies are inferred from the claim text.