python pstats ，profile 性能分析

#! /usr/bin/env python
    # encoding=utf8
    import pstats
    import profile
    def func1():
        for i in range(1000):
            pass
    def func2():
        for i in range(1000):
            func1()
    p = profile.Profile()
    p.run("func2()")
    s = pstats.Stats(p)
    s.sort_stats("time", "name").print_stats()