A method for setting a message buffer queue length

Abstract

The invention relates to a method for setting a message buffer queue length, and belongs to the technical field of computer networks. According to the invention, an Ethernet buffer queue mathematic model is established according to a queuing theory, and then based on an M / G / 1 / infinitely great queuing model, loss cost of Ethernet communication is calculated; and finally, an Ethernet optimal buffer queue length existing when the minimum loss cost is obtained is calculated, so that the optimal network buffer queue length at present can be dynamically calculated and set according to changes of the Ethernet bandwidth utilization rate, thereby reducing network data queuing time-delay, guaranteeing real time transmission of the network data and reaching an optimal Ethernet bandwidth utilization rate.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a method for setting the length of a message buffer queue. Background technique [0002] In order to avoid network congestion, a message buffer queue structure is generally used to process received network data. A common practice is to store received network data in a fixed-length message buffer queue or a circular message buffer queue, and the length of the message buffer queue is generally set to an empirical value. If the length of the message buffer queue is set too small, when the amount of data transmitted on the Ethernet is too large and the load is too large, the message buffer queue will be "filled" with messages, and even new received messages will overwrite the message The message received earlier in the cache queue will eventually cause the message to be discarded; and if the length of the message cache queue is set too large, when the amount of data transm...

AI Technical Summary

Problems solved by technology

If the length of the message buffer queue is set too small, when the amount of data transmitted on the Ethernet is too large and the load is too large, the message buffer queue will be "filled" with messages, and even new received messages will overwrite the message The message received earlier in the cache queue will eventually cause the message to be discarded; and if the length of the message cache queue is set too large, when the amount of data transmitted on the Ethernet is small, on the one hand, it will increase the number of messages received in the message queue. The time overhead used by messages affects the real-time performance of network data transmission. On the other hand, Ethernet is in the "idle period" most of the time, and its utilization efficiency is very low, which reduces the performance of network data transmission.

Images