Concurrent I/O flow model identification method and system based on multiple sliding windows

The invention discloses a concurrent I/O (Input/Output) flow model identification method implemented based on multiple sliding windows, which comprises the following steps of: mapping all I/O requestsbelonging to the same section in received I/O requests to the same hash table row by taking a fixed section as a unit; taking the recorded I/O request as a reference, establishing a detection windowin a controllable range, and enabling the detection window to slide along with the recorded I/O request; arranging a plurality of detection windows in the same hash table row, and judging the I/O requests hitting the same detection window to be in a sequence model. Hash mapping processing of a single I/O request is expanded into processing taking a fixed section as a unit; in other words, all theI/O requests belonging to the same segment are mapped to the same hash table line, and then an overall ordered and locally disordered I/O model is identified through multiple sliding windows, so thatthe problem of local disorde