I just wonder how much "extra ram" do you need.
Here is my setup
Debian 9 with 5.6.9 custom kernel.
Vmware workstation PRO 15.5
Guest VM: Kali Linux latest rolling
8GB RAM + 1GB swap file
Before starting the VM up:
free -m
total used free shared buff/cache available
Mem: 7619 2595 590 285 4434 4476
Swap: 999 0 999
If I give 2GB VRAM for the VM then whatever I do with it like running Android IDE inside will work. However if I give 4GB ram to the VM which IMO should be enough?! then once the vm starts using up that memory it leads to the host completely crashes, I mean I can't even ssh in the machine, keyboard, mouse become nonresponsive aka the whole machine dies.
For 4GB VM setup Hosts memory after VM load:
free -m
total used free shared buff/cache available
Mem: 7619 2595 590 285 4434 4476
Swap: 999 0 999
Guest memory after VM load:
free -m
total used free shared buff/cache available
Mem: 3814 595 2803 10 415 2992
Swap: 0 0 0