check system monit.httpbin.org
  if loadavg (1min) > 4 then alert
  if loadavg (5min) > 2 then alert
  if memory usage > 80% then alert
  if swap usage > 25% then alert
  if cpu usage (user) > 70% then alert
  if cpu usage (system) > 30% then alert
  if cpu usage (wait) > 20% then alert