Looking at the performance tab of an ESXi host I see two far different values: "consumed memory" is about 80% of the available (physical RAM), while "active" memory shows a really low value, about 4% of the available (physical) RAM.
I don't see sharing neither balooning, so I presume memory is not overcommitted.
What counter shows the amount of (physical) RAM really used by the running VMs?
Regards
marius