RAM is NOT cache for your drive. It's the active work space where the CPU tracks all the bits and bobs of executing code - state, variables, etc. Swap space o

RAM is NOT cache for your drive. It's the active work space where the CPU tracks all the bits and bobs of executing code - state, variables, etc. Swap space on disk is a cache of RAM, if you want to go down that path - but RAM and disk support entirely different purposes.