[pandaman]

The vast majority of memory in a modern game stores data for the GPU. On a game console the game manages this data itself. If you ever want to ship on a console you better be sure Go can handle the memory visible from the GPU correctly e.g. keep the necessary alignment, ensure the GPU is not reading/writing the memory it's going to modify, do not charge address of anything, preserve layout of structures etc. I never used Go so I don't know if it already does this. But I would be considering these things way before I'd even started looking into performance.