Method and device for bandwidth allocation based on memory controller

Abstract

Embodiments of the present invention provide a memory controller-based bandwidth allocation method and device, the method comprising: at the end of a time window, the centralized memory controller Meta-MC obtains the memory access request service of at least one memory controller MC Information, wherein, the length of the time window is a preset value, and the memory access request service information is the memory access request service information of the first application on the MC; the Meta-MC serves the memory access request according to the The information adjusts the bandwidth ratio of the first application on the MC in the next time window. The embodiment of the present invention can ensure that the performance degradation of the first application is within a specified limit, that is, guarantee the Qos of the first application.

Description

Technical field [0001] The embodiments of the present invention relate to computer technology, and in particular to a method and device for bandwidth allocation based on a memory controller. Background technique [0002] With the development of multi-core processors, multiple memory controllers are integrated in the system or processor chip. The memory controller is an important part of the computer system to control the memory and exchange data between the memory and the CPU. Since multiple applications running on a multi-core processor at the same time will share the memory bandwidth, a reasonable bandwidth allocation scheme needs to be adopted to improve system throughput. [0003] The existing multi-memory controller improves the system throughput through the request scheduling method. Optionally, it sorts the applications periodically according to the service time each application obtains from the memory controller, and gives the data in each cycle. The application with the l...

AI Technical Summary

Problems solved by technology

However, in the prior art, each application is prioritized only according to the length of service time that each application obtains from the memory controller, and the bandwidth allocated to the key application cannot be guaranteed, thereby failing to guarantee the quality of service (Quality of Service, referred to as Qos)

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