Management method of multichannel multi-speed data collection system memory

Abstract

In order to solve the problems of large necessary high speed cache region and waste or complicated distribution process and dispatch management of the high speed cache region of the management method of multichannel multi-speed data collection system memory in the prior art, the invention provides a management method of a multichannel multi-speed data collection system memory. A speed group is divided in a data speed multiplication manner, each data channel is uniformly distributed with a high speed cache region of which volume is bit number written by one abrupt writing of a main storage region, the traversal frequency of a high speed group is higher than that of a low speed group, the relation between the high speed cache space dimension and the data reading frequency is considered, and the core concept is to exchange time with space. The management method of the multichannel multi-speed data collection system memory disclosed by the invention has the beneficial effects of greatly reducing the volume of the storage space of the high speed cache region, and meanwhile, improving the writing efficiency from the high speed cache region to the main storage region.

Description

[0001] technical field [0002] The invention relates to the management technology of the memory of the multi-channel data acquisition system, in particular to the management method of the memory of the multi-channel multi-rate data acquisition system. Background technique [0003] Generally, data acquisition of multiple data channels is often involved in the data acquisition system, and the data rate of each data channel is inconsistent or even very different. For example, in the channelized optical transmission network CPOS (Channelized Packet over SONET / SDH) collection system, when collecting signaling data on the A and Abis optical interfaces, each advanced data link control protocol HDLC (High-Level Data Link Control) channel The data rate varies from 2.048Mbps to 8Kbps. In order to meet the needs of data acquisition of data channels with different rates, the memory management mode of cache area + main storage area is usually adopted, that is, the physical medium of th...

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Problems solved by technology

[0004] In order to solve the problems in the prior art multi-channel multi-rate data acquisition system memory management method that the required cache area space is large and wasteful, or the allocation process and scheduling management of the cache area are too complicated, etc., the present invention proposes a Memory Management Method for Multi-channel Multi-rate Data Acquisition System

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