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Data access method, memory and processor

A data access and memory technology, applied in the field of memory, can solve the problems of long time consumption and low efficiency

Active Publication Date: 2019-06-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a data access method, memory and processor, which can solve the problem that the processor needs to interact with the memory multiple times when accessing external table items multiple times, resulting in long time-consuming and low efficiency in the entire access process

Method used

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  • Data access method, memory and processor
  • Data access method, memory and processor
  • Data access method, memory and processor

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Experimental program
Comparison scheme
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Embodiment approach

[0048] In the first possible implementation mode, in the first access mode, the processor constructs a first search key group containing a search key through the processor instruction engine IE, and the memory is used to access the specified table according to the first search key group item, and get a piece of access data.

[0049] In the first access mode, the processor only needs to obtain one piece of access data from one entry of the memory. At this time, the first SKS (the data length of the first SKS is N) constructed by the processor through the processor IE contains only One SK, correspondingly, the memory can access the entry indicated by the SK according to the first SKS, and obtain a piece of access data.

[0050] Since the data length of the SKS sent by the processor to the memory is fixed, and in the first access mode, only one SK is included in the SKS, and its data length is relatively short, therefore, when constructing the SKS, the processor IE needs to set a...

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Abstract

The invention discloses a data access method, a memory and a processor, and belongs to the field of memories. The method comprises: a memory receiving a search key group sent by a processor, the search key group comprising n search keys, the search keys are used for indicating a memory access table entry to obtain access data, n is an integer larger than or equal to 1, and n is an integer; The memory accesses the table items in the memory according to the lookup key group to obtain n pieces of access data, and the n pieces of access data belong to the same or different table items; and the memory sends first return data to the processor, wherein the first return data comprises n pieces of access data. According to the method and the device, the problems of long time consumption and low efficiency in the whole access process due to the fact that the processor needs to interact with the memory for multiple times when accessing the external table item for multiple times are solved.

Description

technical field [0001] The embodiments of the present application relate to the field of memory, and in particular, to a data access method, memory, and processor. Background technique [0002] A memory is a device for storing data, and the data in the memory is usually managed using a table. Correspondingly, the process of the processor reading data from the memory is called external table access. [0003] When the processor accesses the external entry of the connected memory, it first needs to generate a search key (Search Key, SK), and then send the search key to the memory, and the memory accesses the corresponding table entry according to the search key to obtain Access the data and return the accessed data to the processor. [0004] When the processor performs multiple accesses to the external entries in the above manner, it needs to perform multiple interactions with the memory, resulting in the entire access process consuming a lot of time. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14
CPCG06F12/14G06F13/00
Inventor 刘国丁涂水平
Owner HUAWEI TECH CO LTD