A SCHEDULING METHOD FOR VIRTUAL PROCESSORS BASED ON THE AFFINITY OF NUMA HIGH-PERFORMANCE NETWORK BUFFER RESOURCES

摘要

The present invention discloses a scheduling method for virtual processors based on the affinity of NUMA high-performance network buffer resources, including: in a NUMA architecture, when a network interface card of a virtual machine is started, getting distribution of the buffer of the network interface card on each NUMA node; getting affinities of each NUMA node for the buffer of the network interface card on the basis of an affinity relationship between each NUMA node; determining a target NUMA node in combination with the distribution of the buffer of the network interface card on each NUMA node and affinities of each NUMA node for the buffer of the network interface card; scheduling the virtual processor to the CPU on the target NUMA node. The present invention solves the problem that the affinity between the VCPU of the virtual machine and the buffer of the network interface card is not optimal in the NUMA architecture, so that the speed of VCPU processing network packets is not high.

主权项

1. A scheduling method for virtual processors based on the affinity of NUMA high-performance network buffer resources, characterized by including the following steps:
(1) in a NUMA architecture, when a network interface card of a virtual machine is started, getting the distribution of the buffer of the network interface card on each NUMA node; (2) getting affinities of each NUMA node for the buffer of the network interface card on the basis of an affinity relationship between each NUMA node; (3) determining a target NUMA node in combination with the distribution of the buffer of the network interface card on each NUMA node and affinities of each NUMA node for the buffer of the network interface card; (4) scheduling the virtual processor to a CPU on the target NUMA node.