"vm.memory.size[free]"
"vm.memory.size[total]"
"vm.vmemory.size[pavailable]"
"system.uptime"
"system.cpu.load[percpu,avg1]"
"system.cpu.load[percpu,avg15]"
"proc.num[]"
"system.uname"
"system.cpu.load[percpu,avg5]"
"agent.hostname"
"agent.ping"
"agent.version"