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Method for realizing energy-saving storing of hybrid main storage

A technology of main memory and phase change memory, which is applied in the direction of data processing power supply, input/output to record carrier, etc., can solve the problems of reducing computer system performance and low access speed, and achieves improved overall performance, high access speed, and low energy consumption. Effect

Inactive Publication Date: 2011-03-23
ZHEJIANG UNIV
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Problems solved by technology

Because its access speed is relatively low compared with DRAM, if it is simply used as the main memory, it will reduce the performance of the computer system

Method used

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  • Method for realizing energy-saving storing of hybrid main storage
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  • Method for realizing energy-saving storing of hybrid main storage

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Embodiment Construction

[0028] The specific implementation manner of the embodiment of the present invention is: first, according to figure 1 The schematic diagram of the mixed main memory structure is shown to build the hardware environment of the system; then according to figure 2 The TAG data structure shown configures the DRAM buffer; finally, the data in the disk and the phase change memory are read and written according to the read and write strategy. This implementation is described in more detail below.

[0029] (1) Constructing a hybrid main memory

[0030]Hybrid main memory is composed of phase change memory PCM and dynamic random access memory DRAM. Among them, the phase change memory provides the main capacity of the hybrid main memory, which is used to store the instructions and data required for the program to run; the dynamic random access memory is used as the buffer memory of the hybrid main memory, and is used to buffer the data of the disk and the phase change memory. The DRAM ...

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Abstract

The invention discloses a method for realizing energy-saving storing of a hybrid main storage. The method comprises the following steps: constructing the hybrid main storage taking a phase change storage as a main storage and a dynamic random storage as a buffer storage, designing a read-write policy adapting to the structure of the main storage, and reading and writing data in a disc and the phase change storage according to the read-write policy. The invention ensures that the structure of the original main storage is improved, and fully utilizes the advantages of high capacity and low power consumption of the phase change storage and the characteristic of low time delay of the dynamic random storage, so that the hybrid main storage acquires higher capacity on the premise that the power consumption and the time delay are not increased, thereby reducing the times of accessing the disc and realizing energy saving in storing.

Description

Technical field [0001] The invention relates to the field of storage and energy saving of embedded systems, in particular to a method for improving the main memory structure and read-write strategy to realize energy-saving storage. Background technique [0002] Memory is a very important part of a computer system and is used to store programs and data. The main memory is the storage space that the processor can directly address, and all programs and data must be loaded into the main memory to run. Therefore, the performance of the main memory directly affects the operating speed of the entire computer system. As the speed of the processor continues to increase, the read and write speed of the main memory is far behind the speed of the processor, which has gradually become a bottleneck for improving system performance. Therefore, how to maximize the capacity and read / write speed of the main memory without increasing the cost and energy consumption has always been a research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F1/32
Inventor 陈天洲乐金明马建良乔福明虞保忠
Owner ZHEJIANG UNIV
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