I am having difficulty understanding the 'MB Free and percent used' metric in SiteScope. On one of the servers it shows MB Free min/avg/max of 14884/17326/17948 MB. The box only has 16 GB of memory. These numbers do not seem correct? Is this MB Free swap or actual memory?

Next question - the percent used is showing 12.3%. Is this swap or of actual?

I looked over the Sitescope documentation in Performance Center but it doesn't give a very good breakdown of each metric only a simple definition. Does anyone know of a place with more detail?

Thanks for your help.