I have a Dell Poweredge R610 [2 Intel Xeon Quad-Core CPU, 12GB RAM] with ESXi 4.0 as the host. The server has 4 VM's, all Windows Server 2008.
Over the pas week all servers have slowed down severly and becoming unresponsive during the day. The ESXi host appears to be eating up over 50% of the CPU and thus maxing out all the servers.
What is the best way to see or troubleshooting what is causing the CPU on the host to be so high?