Memory anonymous page initialization method, device and system

Abstract

The embodiment of the invention discloses an internal storage anonymous page initializing method. The internal storage anonymous page initializing method comprises the steps that the physical address of an internal storage anonymous page to be recognized is obtained, wherein the internal storage anonymous page is a unit of internal storage; according to the physical address, a preset address and name mapping table is searched and the internal storage name of the internal storage corresponding to the physical address is obtained, wherein the address and name mapping table is used for reflecting the corresponding relations of physical addresses of anonymous pages of internal storages and internal storage names of the internal storages; according to the internal storage name, a preset energy consumption difference information mapping table is searched, and energy consumption difference information generated by writing 0 to the internal storage and writing 1 to the internal storage is obtained, wherein the energy consumption difference information mapping table is used for reflecting energy consumption difference information generated by writing 0 to different internal storages and writing 1 to the different internal storages; according to the energy consumption difference information generated by writing 0 to the internal storage and writing 1 to the internal storage, corresponding initializing operation is conducted on the anonymous page of the internal storage. The embodiment of the invention further discloses an internal storage anonymous page initializing device and system.

Description

technical field [0001] The invention relates to the field of computers, in particular to a memory anonymous page initialization method, device and system. Background technique [0002] In a computer system, memory is generally composed of DRAM (Dynamic Random Access Memory, dynamic random access memory). Due to the low integration of DRAM, the capacity is limited. In addition, DRAM is a volatile storage device, and in order to ensure that data is not lost, continuous refresh operations are required, resulting in high energy consumption of DRAM. The energy consumption of the memory system accounts for a relatively large proportion of the total energy consumption of the computer system, and the energy consumption problem has increasingly become a bottleneck restricting the development of the memory system. Compared with DRAM, the new NVM (Non-Volatile Memory) consumes less energy and can achieve a larger capacity due to its high integration. With the increasing requirements...

AI Technical Summary

Problems solved by technology

[0006] When the operating system allocates anonymous pages, it directly initializes all bits of the anonymous page to 0, without considering the difference in energy consumption between writing 0 and writing 1 in the new NVM, resulting in energy waste

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