Method for reducing transmission delay of receiving channel of TOE-based high-frequency transaction terminal

A high-frequency trading and terminal receiving technology, applied in the field of data transmission, can solve problems such as uncontrollable changes in delay, large end-to-end delay, and reduced real-time transmission of data, so as to achieve low transmission delay performance, reduce delay, damage The effect of control

Active Publication Date: 2020-12-11
山东产研集成电路产业研究院有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional way to implement the TCP / IP protocol is to use the CPU to run the software, but the software that implements the TCP / IP protocol usually runs in parallel with the software that executes high-frequency trading-related algorithms. The two occupy system resources, thereby reducing the real-time performance of transmitted data. The specific performance is that the end-to-end delay is relatively large, and the range of uncontrollable changes in the delay is large.

Method used

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  • Method for reducing transmission delay of receiving channel of TOE-based high-frequency transaction terminal
  • Method for reducing transmission delay of receiving channel of TOE-based high-frequency transaction terminal

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Embodiment

[0017] FPGA has the characteristics of high speed, parallelism, precise timing, and flexible functions, and is especially suitable for implementing TOE. The method of this embodiment can give full play to these characteristics of the FPGA technology, and consider the link layer as a component of the TOE, so as to reduce the transmission delay of the application layer data of the receiving channel. Therefore, in this embodiment, FPGA is preferably used to realize TOE.

[0018] Such as figure 2 Shown is an Ethernet frame carrying a TCP segment and an application layer data field transmitted on the network cable after the TCP connection is established. After each byte is parsed by the functional module before the TOE, it is sent from left to right to the Input port of TOE. figure 2 The upper middle is the process of TOE parsing the application layer data field from the Ethernet frame, and the lower part is the process of receiving the application layer data field by the high-...

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Abstract

The invention relates to a method for reducing the transmission delay of a receiving channel of a TOE-based high-frequency transaction terminal, and the method comprises the steps: enabling the TOE toupload an application layer data field obtained through analysis to the high-frequency transaction terminal in a straight-through forwarding mode under the condition that the TOE does not complete the verification of all levels, so that the delay of the application layer data field in the receiving channel of the high-frequency transaction terminal is greatly reduced; meanwhile, designing a mechanism for retransmitting confirmation information after data uploading in a TOE receiving channel and a high-frequency transaction terminal for accidental data errors possibly existing in an original byte stream, so that damage caused by source data accidental errors in a straight-through forwarding mode is controlled to be at a low level, so that the receiving channel of the high-frequency transaction terminal has availability while having extremely low transmission delay performance.

Description

technical field [0001] The invention relates to a method for reducing the transmission delay of a receiving channel of a TOE-based high-frequency trading terminal, and belongs to the technical field of data transmission. Background technique [0002] High-frequency trading is a popular application scenario in the financial technology field. Participants in high-frequency trading use high-performance communication and computing systems to obtain the latest market information released by the exchange in real time, quickly analyze the market information, and quickly predict the market trend within the sub-second time range, and then target This time-domain micro-trend quickly forms a micro-spread trading order and quickly sends it to the exchange to lock in the trading right before the trend changes and competitors, and obtain this small profit. With such high-frequency operations, the accumulation of less becomes more, and it accumulates to form stable and considerable profit...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L1/00H04L12/801
CPCH04L69/16H04L69/163H04L1/0061H04L47/193Y02D30/50
Inventor 林伟温士魁王彬刘晓峰滕达曹山
Owner 山东产研集成电路产业研究院有限公司
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