What's the performance impact of a virtual machine NOT running?

What's the performance impact of a virtual machine NOT running? What is the performance impact on Mac OS X, 10.6 specifically, with VMware Fusion or Parallels Desktop 5 for Mac when the virtual machine is not running? Stated another way, does installing Fusion or Parallels impact boot time of Mac OS X?
Asked by: Guest \| Views: 333

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Guest [Entry]

"I've never user parallels but vmware does the following even when VMs are not running:

Adds the virtual network interfaces on boot
runs a bridge daemon on at least one of the vmnet interfaces
Runs dhcp on the vmnet interfaces
Runs a nat daemon on at least one of the vmnet interfaces.

These total to about 1.5 - 2mb of ram and almost no load. So, yes, your system resources are impacted, though I doubt you'd ever notice."