Paging is not necessarily bad. It enables an address space larger than physical memory at some overhead cost. If the working set for all running programs fit

Paging is not necessarily bad. It enables an address space larger than physical memory at some overhead cost. If the working set for all running programs fits in RAM, the cost of paging is small. Paging from a HDD or a SDD is not going to have much impact if it is done infrequently and can be overlapped with useful fork.