monasca-agent/monasca_agent/collector/checks_d/memory.py

70 lines
2.3 KiB
Python

# (C) Copyright 2015 Hewlett Packard Enterprise Development Company LP
import logging
import psutil
log = logging.getLogger(__name__)
import monasca_agent.collector.checks as checks
class Memory(checks.AgentCheck):
def __init__(self, name, init_config, agent_config):
super(Memory, self).__init__(name, init_config, agent_config)
def check(self, instance):
"""Capture memory stats
"""
dimensions = self._set_dimensions(None, instance)
mem_info = psutil.virtual_memory()
swap_info = psutil.swap_memory()
self.gauge('mem.total_mb',
int(mem_info.total / 1048576),
dimensions=dimensions)
self.gauge('mem.free_mb',
int(mem_info.free / 1048576),
dimensions=dimensions)
self.gauge('mem.usable_mb',
int(mem_info.available / 1048576),
dimensions=dimensions)
self.gauge('mem.usable_perc',
float(100 - mem_info.percent),
dimensions=dimensions)
self.gauge('mem.swap_total_mb',
int(swap_info.total / 1048576),
dimensions=dimensions)
self.gauge('mem.swap_used_mb',
int(swap_info.used / 1048576),
dimensions=dimensions)
self.gauge('mem.swap_free_mb',
int(swap_info.free / 1048576),
dimensions=dimensions)
self.gauge('mem.swap_free_perc',
float(100 - swap_info.percent),
dimensions=dimensions)
count = 8
if hasattr(mem_info, 'buffers') and mem_info.buffers:
self.gauge('mem.used_buffers',
int(mem_info.buffers / 1048576),
dimensions=dimensions)
count += 1
if hasattr(mem_info, 'cached') and mem_info.cached:
self.gauge('mem.used_cache',
int(mem_info.cached / 1048576),
dimensions=dimensions)
count += 1
if hasattr(mem_info, 'shared') and mem_info.shared:
self.gauge('mem.used_shared',
int(mem_info.shared / 1048576),
dimensions=dimensions)
count += 1
log.debug('Collected {0} memory metrics'.format(count))