Ok so this kinda follows on from my previous post - I'm not sure I understand the Virtualized RAM Error window I'm constantly getting.
It's currently telling me that Max and Corona is using 42.2GB of Virtualized RAM.
When I press render and then watch the task manager it's at 100% CPU and using around 20GB Physical RAM max. I have 32GB.
As a side note - sometimes during the prepass stages (Secondary GI, Displacement, Parsing etc) my CPU usage is all over the place. Is that normal? The first render pass (initial pass) is worst for it - CPU usage fluctuates between 10 and 100% - once all of the precalcs and the initial pass is done - CPU usage shoots back up to 100% and RAM usage in task manager stabilises at around 17GB and the subsequent passes start to render pretty quickly? I don't understand it