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Data writing method and apparatus, and memory

A data writing and data block technology, applied in special data processing applications, input/output to record carrier, memory address/allocation/relocation, etc., can solve the problems of high energy consumption, reduce the service life of NVM, etc., and improve the use of Effect of lifespan, reduction of energy consumption of write operation, and reduction of number of rewrites

Active Publication Date: 2016-04-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the working process of NVM, a large number of write operations will not only bring high energy consumption, but also reduce the service life of NVM

Method used

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  • Data writing method and apparatus, and memory
  • Data writing method and apparatus, and memory
  • Data writing method and apparatus, and memory

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Embodiment Construction

[0068] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them.

[0069] The method provided by the embodiment of the present invention can be used to include but not limited to non-volatile memory NVM, for example: flash memory (FlashMemory), PCM (PhaseChangeMemory, phase change memory), FRAM (FerroelectricRandomAccessMemory, ferroelectric dielectric memory) etc., are also applicable to other storage devices that perform write operations by rewriting storage bit states.

[0070] It should be noted that the non-volatile memory described in the embodiments of the present invention may include: phase change memory (Ph...

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Abstract

The present invention discloses a data writing method and apparatus, and a memory, which are used to write data into a nonvolatile storage medium NVM. The method comprises: determining, from a to-be-written data block, a sample data block of the to-be-written data block; comparing the sample data block of the to-be-written data block with N sample data blocks in a preset sample set, separately; determining a sample data block that matches the sample data block of the to-be-written data block in the highest degree from the N sample data blocks as a target sample data block; and writing the to-be-written data block into an idle address space corresponding to the target sample data block. According to the method provided by the present invention, the number of times of write operations when writing data is reduced, thus problems of high energy consumption and a reduced service life of the NVW brought by a large amount of write operations during data writing can be solved.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a data writing method, device and memory. Background technique [0002] The characteristic of the non-volatile memory NVM (Non-VolatileMemory) is that the content will not be lost when the power is turned off. Such as flash memory (FlashMemory), PCM (PhaseChangeMemory, phase change memory), FRAM (FerroelectricRandomAccessMemory, ferroelectric dielectric memory), etc., these memories can still maintain on-chip information even after power off. At present, Flash is the most widely used non-volatile memory, but its read and write speed is difficult to compare with DRAM (Dynamic Random Access Memory, dynamic random access memory), so it can only replace disk as external memory. Memories such as PCM and FRAM have the characteristics of fast read and write speed, high density, and byte addressing. They are regarded as the next generation of new non-volatile memories and can be us...

Claims

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Application Information

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IPC IPC(8): G06F12/02G06F3/06
CPCG06F16/00Y02D10/00
Inventor 沙行勉诸葛晴凤朱冠宇王元钢石亮
Owner HUAWEI TECH CO LTD
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