When using docker, you can bind the container to a CPU kernel through the parameter cpuset
In this case, the number of context switches between CPUs by the operating system is greatly reduced, so the performance of applications in the container will be greatly improved.
In fact, cpuset is a common way to deploy online application type pods in production environment
To use functions similar to docker cpuset on kubernetes, the following two conditions need to be met
The QoS of the pod is guaranteed
Set requests and limits to the same value, such as 2
spec:
containers:
- name: nginx
image: nginx
resources:
limits:
memory: "200Mi"
cpu: "2"
requests:
memory: "200Mi"
cpu: "2"In this way, the above pod will be bound to two exclusive CPU cores
