Transmission speed control method for multi-cast package

Abstract

The invention discloses a transmission speed control method for a multi-cast package. The method comprises the following steps of: calculating standard time and recording accumulative error time; transmitting the multi-cast package and calculating the transmission time of the transmitted multi-cast package; calculating a difference between the standard time and the transmission time, recording the difference as the current error time, and adding the accumulative error time and the current error time and recording the adding result as preset sleep time; when the preset sleep time is greater than an error threshold value, executing the following steps of: sleeping for the preset sleep time; awaking from the sleeping and calculating real sleep time; and calculating new accumulative error time which is the difference between the preset sleep time and the real sleep time; and returning to the initial step and transmitting a next multi-cast package.

Description

technical field [0001] The present invention relates to a method for controlling the sending speed of multicast packets, in particular to a high-precision method for controlling the sending speed of multicast packets. Background technique [0002] In the field related to the technology of sending network packets, controlling the sending speed is an important issue. The calculation method of network data sending speed is the ratio of data sending volume to sending time. Currently, the Windows system of Microsoft uses a sleep function to control the sending speed of network packets. The delay function does not occupy system resources during the delay process, but its precision is too low, and it can only be accurate to the millisecond level. And the error when actually executing the delay function will generally reach 10 milliseconds, so it is not suitable for applications requiring high-speed and stable sending speed. [0003] The window system also provides a precision co...

AI Technical Summary

Problems solved by technology

However, the method of using this counter to delay requires the system to count frequently and confirm whether the delay time has arrived, which seriously occupies the resources of the central processing unit (CPU) and affects the operation of other software and systems.

[0004] That is to say, in the traditional transmission speed control of sending multicast (multi-cast) and other network packets, there is a problem that the delay accuracy is too low and it is easy to cause fluctuations in the transmission speed, or there is a disadvantage that it requires extremely consuming CPU resources.

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