WAS Liberty has auto-scaling feature and one of the metrics is the [CPU metric](http://www-01.ibm.com/support/knowledgecenter/was_beta_liberty/com.ibm.websphere.wlp.nd.multiplatform.doc/ae/twlp_wve_configjvmelast.html). 

My question is about the case when I have many JVMs being members of different clusters running on the same host. Is Liberty measuring the CPU consumption of each JVM or is it per host? If it is host-wide, then scaling decisions are almost meaningless because how does it know which JVM is actually consuming all the CPU time and needs to be scaled out? If I have 5 JVMs and 4 of those are not doing any work and one JVM is taking 99% of my CPU on the host, I only need to scale that JVM, not all five of them.