from proofow import pow256 as proofow
from time import perf_counter


def benchmark_pow(difficulty, iterations):
    values = []
    for i in range(iterations):
        pw = proofow(difficulty)
        values.append(measure(pw.work))
    return sum(values) / len(values)


def measure(what):
    start = perf_counter()
    what()
    return perf_counter() - start


if __name__ == '__main__':
    ITER = 1000
    print('Benchmarking proofow:\n')
    for i in range(5):
        print('{} iterations of difficuluty {} takes {} units of time'.format(ITER, i, benchmark_pow(i, ITER)*1000000))
    print('\nYou should see that each difficulity level roughly doubles in terms of computation time.')