High-speed high-capacity caching method and device

Abstract

The invention discloses a high-speed high-capacity caching method and device, and the method comprises the steps: S1, a data splitting unit carries out the splitting and address information adding ofa high-speed data flow, obtains a plurality of data blocks with address information, and transmits the data blocks to a data exchange unit; S2, the data exchange unit stores the data blocks to specified positions in the corresponding storage units according to the received address information of each data block; S3, the data combination unit generates data request information and transmits the data request information to the data exchange unit according to the delay requirement of the user on the data cache; S4, the data exchange unit reads the data blocks in the storage unit according to thedata request information and transmits the data blocks to the data combination unit; and S5, the data combination unit recombines the data blocks to form a high-speed data stream. The non-volatile storage device can be used and has the advantages of being large in storage capacity and not prone to losing data; through a plurality of storage units connected with the data exchange unit, data storageis realized in parallel, and longer-time data can be cached.

Description

technical field [0001] The invention relates to high-speed data cache, in particular to a high-speed and large-capacity cache method and device. Background technique [0002] For now, in high-speed data acquisition applications, on the one hand, it is necessary to write data to the intermediate cache unit at high speed through a port, and on the other hand, a port is required to read data from the intermediate cache unit at high speed; in order to achieve high speed, the intermediate cache unit Only volatile storage devices can be used, such as DDR memory, etc., so the capacity is limited, and data will be lost when power is off, which brings a lot of inconvenience to the cache of high-speed data. At the same time, when the capacity of volatile storage devices is small , which can achieve a small delay and is not suitable for high-speed data caching in the case of a large delay. Contents of the invention [0003] The purpose of the present invention is to overcome the def...

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Problems solved by technology

[0002] For now, in high-speed data acquisition applications, on the one hand, it is necessary to write data to the intermediate cache unit at high speed through a port, and on the other hand, a port is required to read data from the intermediate cache unit at high speed; in order to achieve high speed, the intermediate cache unit Only volatile storage devices can be used, such as DDR memory, etc., so the capacity is limited, and data will be lost when power is off, which brings a lot of inconvenience to the cache of high-speed data. At the same time, when the capacity of volatile storage devices is small , which can achieve a small delay and is not suitable for high-speed data caching in the case of a large delay

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