38 lines
943 B
Python
38 lines
943 B
Python
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from psutil import Process
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def get_current_memory(pid=None):
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return Process(pid).memory_full_info()
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class MemoryMonitorContext(object):
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def __init__(self, pid=None):
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self._pid = pid
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self.reset()
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def __enter__(self):
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self._enter_memory = self._get_used_memory()
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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self._exit_memory = self._get_used_memory()
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return self
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def _get_used_memory(self) -> float:
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mem = get_current_memory(self._pid)
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return mem.uss
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def reset(self):
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self._enter_memory = -1
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self._exit_memory = -1
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def delta(self) -> float:
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if self._enter_memory < 0:
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raise RuntimeError("Please using context manager to wrap your code.")
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if self._exit_memory < 0:
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return self._get_used_memory() - self._enter_memory
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return self._exit_memory - self._enter_memory
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