Jessta Roll

“From the start, as you would expect from a OS based on a game’s console OS, optimizing for speed has been of paramount important in the over all design. To this end there’s no virtual memory paging, and only a single process is allowed (though that process can spawn multiple threads). The program runs in ring0, you have direct access to all hardware (including CPU and graphics). Memory allocation is the responsibility of the app—there’s no front-end memory allocation. The entire OS will fit into less than 100k.”