A computer-implemented method for controlling data transfer for data processing includes: receiving a data set by a first processor; storing the data set in a buffer by the first processor; and transferring, from the buffer to a queue by the first processor, a batch data set including all data sets stored in the buffer during a time interval, under a condition that the queue is not accessed by a second processor while the transferring is being performed, wherein the batch data set is to be processed by the second processor. In the method, the time interval is adjusted depending on a state of the queue.