| 摘要 |
One aspect of the present invention relates to techniques utilized within an operating system or a similar virtualization environment for reducing overhead of memory management data structures. Memory management data structures are used by operating systems to track the location of hardware pages in physical memory, consuming around 1% of a computer system's physical memory. However, these data structures may be classified as redundant when multiple data structures are used to track the same virtual memory pages stored within physical memory. One embodiment discloses an operation that identifies redundant data structures tracking frames of a single large page that are stored contiguously in the physical memory. Once identified, the redundant data structures may be removed from physical memory, freeing the physical memory for other uses. A further embodiment enables recreation of the removed data structures in physical memory if later accessed within the operating system.
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