METHOD AND SYSTEM FOR MAPPING DATA TO A PROCESS

摘要

The invention relates to mapping data to a process. A method of the invention includes receiving a request to copy a parent process, where the parent process is associated with a first virtual memory address space that includes a first mapping to a page of a file loaded into physical memory. The method includes creating a child process (of the parent process) associated with a second virtual memory address space. The method includes determining that a fork count is greater than a fork count threshold and a COW count to fork count ratio is greater than a threshold ratio. The fork count is associated with the file and the COW count is associated with the page. The method includes creating a copy of the page in physical memory and further includes creating a second mapping from the second virtual memory address space to the copy of the page.