flink-python/pyflink/fn_execution/profiler.py

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import cProfile
import pstats


class Profiler(object):
    def __init__(self):
        self._pr = cProfile.Profile()

    def start(self):
        self._pr.enable()

    def close(self):
        self._pr.disable()
        ps = pstats.Stats(self._pr).sort_stats('cumulative')
        ps.print_stats()