Image forming apparatus that determines a movement destination of data

An image forming apparatus comprising:

• a first memory device that stores data;
• a second memory device that has a processing speed higher than that of the first memory device;
• and
• a processor that executes an information processing program,
• wherein when the information processing program is executed,
• the processor operates to:
• perform image processing of data read from the first memory device or the second memory device;
• control at least reading of the data;
• measure a ratio of an idle time when the image processing is performed relative to a usage rate per unit time of the processor;
• and
• determine a movement destination of the data,
• when the information processing program is executed, the processor further operates to:
• determine that the movement destination of the read data is the first memory device if the ratio of the idle time is less than a specific threshold;
• determine that the movement destination of the read data is the second memory device if the ratio of the idle time is more than the specific threshold;
• and
• move the data based on the determination result of the movement destination, wherein
• the specific threshold is set such that the ratio of the idle time is less than the specific threshold when image processing speed by the processor is slower than data reading speed by the processor.