A DIRECT READ BYTE-ADDRESSABLE METHOD AND AN APPARATUS HAVING A DIRECT READ BYTE-ADDRESSABLE FUNCTION AND A RAM SYNCHRONIZATION FUNCTION

摘要

The present invention relates to a computer device having a zero-copy byte reading function and a random access memory (RAM) synchronization function. The computer device provides a zero-copy byte reading scheme without passing through a cache in an operating system (OS) through RAM synchronization enabled by a software design description (SDD) with a RAM disk in a secondary storage device. According to an embodiment of the present invention, the computer device having a zero-copy byte reading function and a RAM synchronization function comprises: the secondary storage device including the RAM disk including a DRBr unit receiving reading requests and a RAM storing data, the SSD which stores real-time data copies of the RAM disk, and a RAM synchronization unit which stores the real-time copies to the SSD and includes a DRBs unit for receiving the reading requests from the DRBr unit; and a virtual file system which includes a DRBf unit receiving byte reading requests from application programs and directly transmits the receives reading requests to the DRBr unit of the RAM disk or the DRBs unit of the RAM synchronization unit upon receiving the reading requests.