| 摘要 |
The present invention, in various embodiments, provides techniques for managing memory in computer systems. One embodiment uses a memory table having entries to locate data residing in different types of storage areas, such as physical memory, hard disc, file servers, storage devices, etc. Upon a program accessing memory for a particular piece of data, the memory table translates the data's physical address to an address used to find the table entry pointing to the requested data. In one embodiment, if the data is in physical memory, then the requested data is returned to the program. However, if the data is not in physical memory and it is determined that the data will be used frequently, then the data, in addition to being returned, is also brought to the physical memory for later use. This is because accessing the data from physical memory usually takes less time than accessing the data from other storage devices.
|
