utils.py 文件源码

def time_call(func, setup=None, maxtime=1, bestof=10):
    """
    timeit() wrapper which tries to get as accurate a measurement as possible w/in maxtime seconds.

    :returns:
        ``(avg_seconds_per_call, log10_number_of_repetitions)``
    """
    from timeit import Timer
    from math import log
    timer = Timer(func, setup=setup or '')
    number = 1
    end = tick() + maxtime
    while True:
        delta = min(timer.repeat(bestof, number))
        if tick() >= end:
            return delta/number, int(log(number, 10))
        number *= 10