Abstract: With the optical fiber technology used in embedded systems, the amount of communication data grows in the past years. How to move data that store in the memory to disk in a high speed and correct way becomes the bottleneck of data acquisition system. This article starts with the basic function modules which are combined with producer-consumer model, and analyzes multi-thread concurrency, direct read and write disk devices without passing through file system, asynchronous I/O and other technologies used in the system. The paper abstracts the system model and uses mathematical methods to give a feasibility analysis for the system. Experiments show that the performance of system which adopts multi-thread concurrency method is improved with a certain extent.

Key words: data acquisition, multi-thread, producer-consumer model, CreateFile, concurrency storage