python 运行时间分析,Chronic

软件简介

Chronic 介于简单的定时器和分析器。通过添加修饰符或包装代码语句来获得程序执行时间。Chronic

跟踪调用层次结构来告诉你时间块内执行其他的块。附加一个事件侦听器来记录你想要的时间。

示例代码：

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}}