In the testing literature, the term load testing is usually defined as the process of exercising the system under test by feeding it the largest tasks it can operate with. Load testing is sometimes called volume testing, or longevity/endurance testing.
Keep your taste buds awake, drink an energy drink. This may raise your level of alertness for a reasonable amount of driving time. Suck or munch on an apple, orange, or even a lemon to keep taste buds awake. The more tangy the food item the better. (Pull over somewhere safe before eating anything that you can't just pop in your mouth, however.
Try to schedule the nap around the time you find it most difficult to stay awake; for many people this is about 2â3 p.m. If you have severe sleepiness, an additional nap in the late morning may also be helpful. To improve their alertness, some people with narcolepsy find it helpful to take a nap before driving.