ChronicPython 程序執(zhí)行時(shí)間分析器

Chronic 介于簡單的定時(shí)器和分析器。通過添加修飾符或包裝代碼語句來獲得程序執(zhí)行時(shí)間。Chronic 跟蹤調(diào)用層次結(jié)構(gòu)來告訴你時(shí)間塊內(nèi)執(zhí)行其他的塊。附加一個(gè)事件偵聽器來記錄你想要的時(shí)間。

示例代碼：

import chronic
from pprint import pprint


@chronic.time
def time_one():
    pass


@chronic.time
def time_two():
    with chronic.Timer('block2'):
        print chronic.stack
        # ('time_two', 'block2')
    pprint(chronic.timings)
    # prints local view of timings
    # {'block2': {'average_elapsed': 1.0967254638671875e-05,
    #             'count': 1,
    #             'total_elapsed': 1.0967254638671875e-05}}

with chronic.Timer('block1'):
    time_one()

pprint(chronic.timings)


def print_done(elapsed, timings, stack):
    print stack
    pprint(timings)

time_one()
chronic.post_timing.connect(print_done)
time_one()
# []
# 9.5367431640625e-07
# {'average_elapsed': 9.5367431640625e-07,
#  'count': 2,
#  'total_elapsed': 1.9073486328125e-06}
chronic.post_timing.disconnect(print_done)


time_two()
# ['time_two', 'block2']
# {'block2': {'average_elapsed': 5.9604644775390625e-06,
#             'count': 1,
#             'total_elapsed': 5.9604644775390625e-06}}