cpu-pinning.bash

#!/usr/bin/env bash
while read -r instance; do

  while read -r current_node_cpus; do

    current_node=();
    for i in $current_node_cpus; do
      current_node[i]=1
    done

    notfound=()
    found_at_least_one=0
    while read -r cpu; do

      if [[ ! ${current_node[cpu]} ]]; then
        notfound+=("$cpu");
      else
        found_at_least_one=1
      fi

    done < <(virsh dumpxml "$instance" | awk '/vcpupin/{split($0,a,"="); split(a[3],cpu,"'\''"); print cpu[2]}')

    if [[ "$found_at_least_one" == "1" ]] && [[ ${#notfound[@]} -ne 0 ]]; then
      echo "CPU pinning on instance $instance is wrong! Probably this are the wrong pins: ${notfound[@]}"
      break
    fi

  done < <(numactl --hard | awk '/cpus:/{split($0,a,":"); print a[2];}')

done < <(virsh list --name --all | grep -v "^$")