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Method and device for writing data

A data writing and data technology, applied in the direction of digital memory information, information storage, static memory, etc., can solve the problem of unstable writing delay reduction effect

Active Publication Date: 2019-05-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for writing data, which are used to solve the problem of unstable reduction effect of writing delay

Method used

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  • Method and device for writing data
  • Method and device for writing data

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Embodiment Construction

[0096] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0097]An embodiment of the present invention provides a method for writing data, and the method is applied to an electronic device with data storage and processing capabilities, such as a server, a personal computer, a mobile terminal, etc., such as figure 1 As shown, the method includes:

[0098] Step 101: Sampling the data to be written according to a preset sampling algorithm to obtain a target label, which is used to represent the numerical distribution of data...

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Abstract

The present invention relates to the field of data storage. Disclosed are a data writing method and device for solving the problem of the instable reduction of write delay, the method comprising: sampling data to be written according to a preset sampling algorithm to obtain a target label, the target label being used to represent numerical value distribution of data bits in the data to be written; searching a preset target group label set for a target group label having the highest similarity to the target label, the preset group label set consisting of at least one group label, and each group label corresponding to at least two blank data pages having similar data characteristics; selecting a target blank data page from the at least one blank data page corresponding to the target group label; and writing the data bits in the data to be written that are different from those in the target blank data page into the corresponding positions on the target blank data page. The present invention is mainly used in data read and write operations.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a method and device for writing data. Background technique [0002] With the development of cache technology, after Dynamic Random Access Memory (DRAM for short), the industry has developed a new phase-change memory (Phase-Change Memory, PCM for short) for replacing DRAM. Because phase-change memory combines the high-speed access characteristics of DRAM memory and the characteristics of flash memory to retain data after the power is turned off, phase-change memory is regarded by the industry as the future flash memory and memory that will replace DRAM. However, in the read and write operations of phase change memory, the write delay is much greater than the read delay. The reason is that the delay between writing 0 and writing 1 is asymmetrical, that is, when writing 0 (also called reset) The delay is very low, and the delay of writing 1 (also called set) is very large, and the delay...

Claims

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Application Information

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IPC IPC(8): G11C11/56
CPCG11C11/56
Inventor 王元钢徐君朱冠宇
Owner HUAWEI TECH CO LTD
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