Bus resource allocation method and device and related equipment

Abstract

The invention discloses a bus resource allocation method, which comprises the following steps: counting data traffic of each data channel in a preset monitoring period; calculating to obtain total data traffic according to the data traffic of each data channel; calculating to obtain an arbitration weight of each data channel according to a preset total weight, the total data traffic and the data traffic of each data channel; performing time fragmentation on the preset monitoring period according to each arbitration weight, and obtaining allocation time corresponding to each data channel, so that each data channel obtains bus resources according to the allocation time. According to the bus resource allocation method, reasonable allocation of the bus resources can be realized, the utilization rate of the bus resources is effectively improved, and the system performance is further improved. The invention further discloses a bus resource allocation device and system and a computer readable storage medium which all have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of resource sharing, in particular to a bus resource allocation method, and also to a bus resource allocation device, system, and computer-readable storage medium. Background technique [0002] With the continuous development of integrated circuits, the requirements for processing speed and performance of SOC (System on Chip, System on Chip) chips are getting higher and higher. As the central bridge connecting each module, the system bus has an important impact on the performance of the SOC system, especially in a system with multiple master devices and multiple slave devices, the arbitration mechanism of the bus will affect the read and write efficiency of multiple data, Then affect the performance of the SOC chip. [0003] In the related art, the multi-user arbitration method of the system bus mainly includes a fixed priority method and a time division multiplexing method. Among them, the fixed...

AI Technical Summary

Problems solved by technology

Among them, the fixed priority method means that the priority of each main module is determined and will not change with the operation of the system. When multiple main modules request the use of bus resources at the same time, the arbitrator will However, when the high-priority main module is using the bus all the time, the low-priority main module will not get the bus resources, so that the low-priority main module instructions cannot take effect

The time division multiplexing method is mainly to specify a fixed length of time for each master device to occupy the shared resource in advance, and when the time ends, the shared resource will be allocated to another master device; however, this method has high requirements for the division of time slices. If If the division is unreasonable, the waiting time of the channel with high priority and high bandwidth requirements will be prolonged, and the bus performance of the system will be degraded. In addition, in the actual application process, the bandwidth of data read and write requests between different master and slave devices changes dynamically. If a fixed time slice is used, it will definitely cause low efficiency of arbitration allocation in a certain period of time, which will affect the performance of the bus and SOC chip

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