What is the suggested way to measure function duration in python? I have seen the following:
t0 = time.time()
# do something()
duration = time.time() - t0
and
t0 = time.perf_counter()
# do something()
duration = time.perf_counter() - t0
What are the differences, and which should be used for profiling, if either?
Not your direct question, but the simplest way is to use the timeit module:
from timeit import timeit
timeit(doSomething, number=int(1e6))
It will run the test multiple times and return the total running time. Set number to a fairly high number. I usually aim for a number that causes it to run for 30-60 seconds to make sure that it runs long enough to prevent small fluctuations from effecting the results too much.
