#!/bin/bash

iotop -Pobkd 8 | 
  awk '{procfile="/proc/"$1"/cgroup"; getline a < procfile; close(procfile); split(a,lxc,"/"); printf("%-12s%-178s\n",lxc[3],substr($0,0,172)); fflush();}' |
  egrep --line-buffered --color '(^.*Total.*$|^)'