Is it possible to point all of Tableau Desktop's temp directories to a ramdisk? I've seen instructions for Tableau Server but not Tableau Desktop. I currently have my extract and the workbook sitting in a ram disk but as calculations are taking place, I'm seeing major disk activity in the temp files on the C drive.
I've never tried but the thread you linked to was inspired by the following thread:
I'm hoping it has enough information to get you pointed in the right direction.