Data reading-writing processing method and device based on mixing memory

A hybrid memory, data reading and writing technology, used in electrical digital data processing, instruments, etc., can solve the problems of high cost, low capacity, limited writing life, etc., and achieve the effect of improving service life, increasing capacity, and good scalability.

Active Publication Date: 2012-12-19
国家超级计算深圳中心(深圳云计算中心)
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Solid-state drives have many advantages, but they also have the characteristics of high cost, low capacity, and limited write life.

Method used

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  • Data reading-writing processing method and device based on mixing memory
  • Data reading-writing processing method and device based on mixing memory
  • Data reading-writing processing method and device based on mixing memory

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Embodiment Construction

[0055] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056]The hybrid memory of the present invention includes a storage device and a cache device. Storage devices include SSD (solid state disk, solid state drive) and HDD (Hard Disk Drive, hard disk drive). Due to the characteristics of fast reading, low latency, and write loss, SSDs are used to store frequent reads and few writes. data; cache devices include DRAM (Dynamic Random Access Memory, dynamic random access memory) and PCM (phase change memory, phase change memory), PCM capacity is larger, DRAM capacity is smaller, because the read speed of PCM and DRAM However, PCM has the problem of write loss and its life is limited, so PCM is more suitable for storing frequently read data, while frequently write data is mainly stored in DRAM. The present invention combines the advantages of each memory chip in the hybrid m...

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Abstract

The invention discloses a data reading-writing processing method and a data reading-writing processing device based on a mixing memory. The method comprises the following steps: receiving a reading request or a writing request; storing the data corresponding to the reading request stored in a storage device to a phase change memory PCM (Phase Change Memory) of a cache device, or storing the data corresponding to the writing request stored in the storage device to a dynamic random access memory DRAM (Dynamic Random Access Memory) of the cache device; carrying out reading operation on the data corresponding to the reading request stored in the cache device, or carrying out writing operation on the data corresponding to the writing request stored in the cache device. According to the data reading-writing processing method and the data reading-writing processing device, the high-speed access, high capacity and low cost is achieved, the PCM loss is effectively reduced, and the service life of the whole mixing memory is improved.

Description

technical field [0001] The invention relates to the technical field of computer data storage, in particular to a data reading and writing processing method and device based on a hybrid memory. Background technique [0002] In the cloud era, both computing resources and storage resources are concentrated in remote data centers. Except for direct storage services for end users, most of the other storage resources will directly face the servers in the data center. With the large-scale growth of massive data and the extensive and in-depth application of servers, many important applications such as transaction processing systems and weather forecasts are constrained by the performance of the underlying main memory and storage systems. Making full use of the existing storage technology and improving the existing main memory and storage system structure is crucial to improving the overall performance of the system. Solid-state drives have many advantages, but they also have the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/16
Inventor 常艺伟葛雄资徐泽明
Owner 国家超级计算深圳中心(深圳云计算中心)
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