Generally i find that my XTR depending on the type of oil used will either burn nothing at all and doesnt matter what riding i do, or can burn up to 100ml + in under 1k miles, it all depends on how you ride
your bike, clutch, gear changes, speed, stop start riding, heat the engine has etc etc. Most engines will use more oil when higher reved and on longer motorway trips.
Get into a weekly routine that before you wash the bike or something you check the oil or on a Friday after work.