Dynamic service level objective power control in distributed process

A computer-implemented method, comprising:

• for a service that is distributively implemented in a set of processing devices, each processing device being a server computer and the set of processing devices including a plurality of server computers in which the service is distributively implemented, the service having a respectively associated service level objective value, the service level objective value being a required quality of service to be met by the set of processing devices performing the service, determining a current service level value that measures a current performance of the service by the set of processing devices performing the service;
• when the current service level value does not meet the service level objective value of the service, generating a first control signal that causes one or more of the processing devices performing the service to operate at a first power consumption level;
• and
• when the current service level value does meet the service level objective value of the service, generating one or more control signals that cause one or more processing devices performing the service to operate at one or more reduced power consumption levels that are each less than the first power consumption level and wherein the one or more reduced power consumption levels causes a decrease in the current performance by the set of processing devices performing the service so that a difference between the current service level value of the set of processing devices performing the service and the service level objective value for the service decreases.

A system comprising:

• a set of processing devices configured to distributively implement a service, each processing device being a server computer and the set of processing devices including a plurality of server computers in which the service is distributed implemented, the service having a respectively associated service level objective value, the service level objective value being a required quality of service to be met by the set of processing devices performing the service, each processing device including a node controller configured to:
• determine a constituent current service level value that measures a current performance of the service by the processing device;
• when the constituent current service level value does not meet a constituent service level objective value for the processing device, generate a first control signal that causes the processing device to operate at a first power consumption level;
• and
• when the constituent current service level value does meet the constituent service level objective value, generate one of a plurality of control signals that cause the processing device to operate at one of a plurality of reduced power consumption levels that are each less than the first power consumption level and wherein each reduced power consumption levels causes a current performance by processing device performing the service to decrease so that a difference between the constituent current service level value and the constituent service level objective value decreases;
• wherein each constituent service level objective value is based on the service level objective.

A computer storage apparatus including a computer readable medium encoded with instructions that when executed by a data processing apparatus cause the data processing apparatus to perform operations comprising:

• for each of a plurality of services that are each distributively implemented in a respective set of processing devices, each processing device being a server computer and the set of processing devices including a plurality of server computers in which the service is distributively implemented, each service having a respectively associated service level objective value for the service, the service level objective value being a required quality of service to be met by the set of processing devices performing the service, determining a current service level value that measures a current performance of the service by the set of processing devices performing the service;
• for each service for which the current service level value does not meet the service level objective value of the service, generating a first control signal that causes one or more of the processing devices performing the service to operate at a first power consumption level;
• and
• for each service for which the current service level value does meet the service level objective value of the service, generating one or more control signals that cause one or more processing devices performing the service to operate at one or more reduced power consumption levels that are each less than the first power consumption level and wherein the one or more reduced power consumption levels causes a decrease in the current performance by the set of processing devices performing the service so that a difference between the current service level value of the set of processing devices performing the service and the service level objective value for the service decreases.

A method implemented in one or more computers, comprising:

• in each processing device in a set of processing devices distributively implementing a service, the service having a respectively associated service level objective value, each processing device being a server computer and the set of processing devices including a plurality of server computers in which the service is distributively implemented, the service level objective value being a required quality of service to be met by the set of processing devices performing the service:
• determining a constituent current service level value that measures a current performance of the service by the processing device;
• when the constituent current service level value does not meet a constituent service level objective value for the processing device, generating a first control signal that causes the processing device to operate at a first power consumption level;
• and
• when the constituent current service level value does meet the constituent service level objective value, generating one of a plurality of control signals that cause the processing device too operate at one of a plurality of reduced power consumption levels that are each less than the first power consumption level and wherein each reduced power consumption levels causes a decrease in the current performance of the service so that a difference between the constituent current service level value and the constituent service level objective value decreases;
• wherein each constituent service level objective value is based on the service level objective.