I have done this with Ubuntu on VirtualBox on a Thinkpad. It definitely spins up your CPU. VirtualBox has lots of configuration voodoo to make it "fast". I al

I have done this with Ubuntu on VirtualBox on a Thinkpad. It definitely spins up your CPU. VirtualBox has lots of configuration voodoo to make it "fast". I also never got file sharing to work perfectly between host and VM. It always had some sync or lock issue. I eventually gave up and used ssh plus vim. (At that point I should have just switched to a Digital Ocean VPS) The experimental Ubuntu bash command prompt in Windows 10 is a great idea, but not quite ready for Rails development. Too many breaking bugs (check the GitHub repo for context) I eventually gave up on that, and bought a MBP. I still wish I could use Windows for my Dev box, but I just can't recommend it (yet)