What is the best way to run linux on Mac without performance degrade?

[hajime]

Hello, what is the best way to run linux on the Mac without performance degrade? For running Windows 7 under VMware Fusion 4.0 on my rMBP 15" with 16GB, it is like a real Windows PC even emulation. Thanks.

 

[MacDawg]

If you already have Fusion, just create another VM and install Linux