Mac Pro running out of virtual memory
I have a Late 2009 Mac Pro Quad Core with 16GB of Ram. When this thing idles I get a your are our of virtual memory error all the times and the startup disk goes from 800GB free to 4Gb free. What could cause this? I'm on 10.11.1 and have cleared the cookies and cache. This seems to happen when it idles. I have already rebuilt the OS once on a different hard drive.
Mac Pro, OS X Server, 10.11.1