The article only listed user and sys time usage, so technically that doesn't matter. That being said, in my experience those timings are not very accurate at t

The article only listed user and sys time usage, so technically that doesn't matter. That being said, in my experience those timings are not very accurate at this time scale; timing a program which takes just a few tenths to execute may report halving or doubling the user time between subsequent runs (and vice versa for systime).