METHOD AND APPARATUS FOR REDUCING CPU RESOURCE CONSUMPTION USING GIANT PAGE MAPPING

摘要

Disclosed are a method and apparatus for reducing CPU resource consumption using giant page mapping, the method comprising: generating a giant page mapping table recording a mapping relationship from a virtual address to a physical address for each system process (S101); when a system process accesses some virtual address, if a page miss procedure occurs, searching in the giant page mapping table, and after obtaining the mapping relationship from the virtual address to the physical address, loading the mapping relationship into a translation lookaside buffer (TLB) entry (S102). Giant page mapping some segment of memory greatly reduces the requirement for the number of TLBs, making the TLB self-carried in a memory management unit of a common CPU capable of mapping very large memory space and making a service processing process generate no TLB MISS abnormality after achieving a stable state in a short time during the operation, thus greatly improving performance, and thus can not only use the powerful functions provided by an operating system, but also improve system performance so that it is capable of processing large traffic communication.