>If we just run /bin/true, we can do 500 of them in a second, so it looks like running any program has about 1ms of overhead. This is off by at least three ord

>If we just run /bin/true, we can do 500 of them in a second, so it looks like running any program has about 1ms of overhead. This is off by at least three orders of magnitude, at least on my machine. $ time for i in $(seq 1000000); do true; done real 0m1.049s user 0m1.037s sys 0m0.019s This article would be better if it were about computers in general, not about Python. I specifically avoid using Python for anything serious because I find its performance impossible to reason about. Then again, perhaps it's a good thing to have examples that require thinking rather than just reciting the machine's specs like most of these lists I've seen.