CPU scheduler configured to support latency sensitive virtual machines

摘要

A host computer has one or more physical central processing units (CPUs) that support the execution of a plurality of containers, where the containers each include one or more processes. Each process of a container is assigned to execute exclusively on a corresponding physical CPU when the corresponding container is determined to be latency sensitive. The assignment of a process to execute exclusively on a corresponding physical CPU includes the migration of tasks from the corresponding physical CPU to one or more other physical CPUs of the host system, and the directing of task and interrupt processing to the one or more other physical CPUs. Tasks of the process corresponding to the container are then executed on the corresponding physical CPU.

主权项

1. In a host computer having one or more physical central processing units (CPUs) that support the execution of a plurality of containers, the containers each including one or more processes, wherein the host computer is programmed to perform a method of assigning at least one of the processes to have exclusive affinity to a corresponding physical CPU, the method comprising:
determining that a first container is latency sensitive; and responsive to the determining, assigning each of the processes of the first container to have exclusive affinity to one or more corresponding physical CPUs, said assigning comprising:
migrating running tasks on the corresponding physical CPUs to the one or more other physical CPUs of the host system;directing queued tasks and interrupt processing for the corresponding physical CPUs to the one or more other physical CPUs; andexecuting tasks of each of the processes of the first container on the one or more corresponding CPUs to which the process has exclusive affinity.