Low-delay communication system

Abstract

The invention discloses a low-delay communication system, which can effectively reduce the system delay problems in a financial derivative transaction system without additional procurement of networkhardware, and is simple to use. The technical scheme is as follows: the system comprises an API interface management module, an information interaction management module, a policy management module, adescriptor management module and a data transceiving module, wherein the API interface management module is used for providing a data transceiving interface to a user application; the information interaction management module is used for managing a communication mechanism between different processes; the policy management module is used for maintaining a data distribution strategy method; the descriptor management module is used for managing descriptors applied by all user processes; and the data transceiving module is used for the data transceiving between a user layer, a kernel and a network card.

Description

technical field [0001] The invention relates to technologies in the field of financial futures, in particular to a low-delay communication system based on a data plane development kit (DPDK, DatePlane Development Kit). Background technique [0002] In recent years, with the enrichment and growth of financial derivatives and the spread of financial knowledge, more and more investors have participated in financial derivatives transactions. In order to meet the needs of investors and standardize the system interfaces between different exchanges, in 2005 the International Financial Information Exchange (FIX Protocol Limited, FPL) proposed a FAST encoding method based on reducing bandwidth usage. In order to improve the throughput of the trading system and reduce the transaction delay, in 2013, the FPL organization proposed a simple binary encoding method that conforms to the FIX specification, referred to as SBE. The main idea of ​​the simple binary encoding method is to quickl...

AI Technical Summary

Problems solved by technology

However, on the one hand, this solution will cause network card monopoly, which means that the operating system will no longer be able to access the network card occupied by DPDK; on the other hand, this solution only provides an interface for receiving and sending data packets of the network card, and does not provide a complete Network protocol stack, such as UDP, TCP protocol processing

At the same time, the support for multi-process and multi-threading of user programs is poor, resulting in existing user programs that must be greatly modified to use this solution.

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