METHOD, SYSTEM AND COMPUTER PROGRAM FOR PROCESSING DATA

摘要

PURPOSE: A method, a system and the computer program for processing data are provided to offer a page frames in faster ratio and to reduce the dependence on the page security of memory space. CONSTITUTION: The VMM(Virtual Memory Manage) checks whether the page frame used for data can used the space in the real memory or not(408). The free list checks the usable page frames and if the usable page frames are vacant, the VMM secures the pages to fill up the free list and makes the usable page frames for data(410). The VMM copies the data into the page frames by accessing the free list for the free page frames and the data finally copies into a read buffer(416). The VMM not instantly accesses more data but tries to return the page frames to free list. If the real memory ratio occupied by the file page is less than the preset maximum quantity, any space does not allocate to the additional page and any page frame does not return to the free list(420). If not, the VMM selects the top candidates file page and returns to the free list.