A control method executed by a control device, the control method including identifying a specified time period based on execution history information on previous jobs related to the plurality of systems, the specified time period being a period prior to execution start timing of a first job, update processing for a data storage area from which the first job refers to data is not executed during the specified time period, performing control so that evaluation timing of an amount of the data that the first job refers to from the data storage area is included in the identified time period, determining a specified system among from the plurality of systems based on the amount of the data evaluated at the evaluation timing, and causing the specified system to execute the first job.