63 lines
1.9 KiB
Python
63 lines
1.9 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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from time import time
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try:
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import psutil
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# print('psutil available')
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psutil_available=True
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except ImportError:
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psutil_available=False
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class Stats:
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def __init__(self):
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self.memstats_available = False
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if psutil_available:
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self.process=psutil.Process()
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self.memstats_available = True
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self.reset()
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def reset(self):
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self.lasttime = self._gettime()
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self.lastmem = self._getmem()
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self.basemem = self.lastmem
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self.maxmem = 0
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self.elapsedtime = 0
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def _gettime(self):
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"""return the time in seconds used by the current process."""
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if psutil_available:
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""" Handle psutil API change. """
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if hasattr(self.process, "get_cpu_times"):
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m = self.process.get_cpu_times()
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else:
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m = self.process.cpu_times()
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return m.user + m.system
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return time()
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def _getmem(self):
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"""return the resident set size in bytes used by the current process."""
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if psutil_available:
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""" Handle psutil API change. """
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if hasattr(self.process, "get_memory_info"):
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m = self.process.get_memory_info()
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else:
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m = self.process.memory_info()
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return m.rss
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return 0
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def time(self):
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"""return the time since the last call in seconds used by the current process."""
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old = self.lasttime
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self.lasttime = self._gettime()
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self.elapsedtime = self.lasttime - old
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return self.elapsedtime
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def memory(self):
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"""return the maximum resident set size since the first call in bytes used by the current process."""
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self.lastmem = self._getmem()
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d = self.lastmem - self.basemem
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if d > self.maxmem:
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self.maxmem = d
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return self.maxmem
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