You can follow:

• "Assign Memory Resources to Containers and Pods"
• "Assign CPU Resources to Containers and Pods"

That is:

apiVersion: v1
kind: Pod
metadata:
  name: cpu-demo
  namespace: cpu-example
spec:
  containers:
  - name: demo-ctr
    image: vish/stress
    resources:
      limits:
        cpu: "1"
        memory: "200Mi"
      requests:
        cpu: "0.5"
        memory: "100Mi"
    args:
    - -cpus
    - "2"

At the pod level: "Configure a Pod Quota for a Namespace".