84 lines
2.9 KiB
Python
84 lines
2.9 KiB
Python
# (C) Copyright 2015 Hewlett Packard Enterprise Development Company LP
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import logging
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import psutil
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log = logging.getLogger(__name__)
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import monasca_agent.collector.checks as checks
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class Memory(checks.AgentCheck):
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def __init__(self, name, init_config, agent_config):
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super(Memory, self).__init__(name, init_config, agent_config)
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def check(self, instance):
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"""Capture memory stats
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"""
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dimensions = self._set_dimensions(None, instance)
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mem_info = psutil.virtual_memory()
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swap_info = psutil.swap_memory()
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self.gauge('mem.total_mb',
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int(mem_info.total / 1048576),
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dimensions=dimensions)
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self.gauge('mem.free_mb',
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int(mem_info.free / 1048576),
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dimensions=dimensions)
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self.gauge('mem.usable_mb',
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int(mem_info.available / 1048576),
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dimensions=dimensions)
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self.gauge('mem.usable_perc',
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float(100 - mem_info.percent),
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dimensions=dimensions)
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self.gauge('mem.swap_total_mb',
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int(swap_info.total / 1048576),
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dimensions=dimensions)
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self.gauge('mem.swap_used_mb',
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int(swap_info.used / 1048576),
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dimensions=dimensions)
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self.gauge('mem.swap_free_mb',
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int(swap_info.free / 1048576),
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dimensions=dimensions)
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self.gauge('mem.swap_free_perc',
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float(100 - swap_info.percent),
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dimensions=dimensions)
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count = 9
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if hasattr(mem_info, 'buffers') and mem_info.buffers:
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self.gauge('mem.used_buffers',
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int(mem_info.buffers / 1048576),
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dimensions=dimensions)
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count += 1
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if hasattr(mem_info, 'cached') and mem_info.cached:
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self.gauge('mem.used_cache',
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int(mem_info.cached / 1048576),
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dimensions=dimensions)
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count += 1
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if (hasattr(mem_info, 'buffers') and mem_info.buffers and
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hasattr(mem_info, 'cached') and mem_info.cached):
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mem_used_real = mem_info.used
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if psutil.version_info < (4, 4, 0):
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#
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# pusutil versions prior to 4.4.0 didn't subtract buffers and
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# cache, but starting in 4.4.0 psutil does.
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#
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mem_used_real = mem_used_real - mem_info.buffers - mem_info.cached
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self.gauge('mem.used_real_mb', int(mem_used_real / 1048576),
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dimensions=dimensions)
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count += 1
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if hasattr(mem_info, 'shared') and mem_info.shared:
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self.gauge('mem.used_shared',
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int(mem_info.shared / 1048576),
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dimensions=dimensions)
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count += 1
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log.debug('Collected {0} memory metrics'.format(count))
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