PerfMon::Component Node1 PerfMon::Component Node2 PerfMon::Cpu + user + sys + real + rt_cpu + Cpu() + cpu() Node2->Node1 +cpu Node3 PerfMon::Mem + vmem + rss + mall + nmall + nfree + Mem() + dVmem() + dRss() + dMall() + dNMall() + dNFree() Node3->Node1 +mem