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

68 lines
2.2 KiB
Python

import psutil
import logging
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 'buffers' in mem_info:
self.gauge('mem.used_buffers',
int(mem_info.buffers/1048576),
dimensions=dimensions)
count +=1
if 'cached' in mem_info:
self.gauge('mem.used_cache',
int(mem_info.cached/1048576),
dimensions=dimensions)
count +=1
if 'shared' in mem_info:
self.gauge('mem.used_shared',
int(mem_info.shared/1048576),
dimensions=dimensions)
count +=1
log.debug('Collected {0} memory metrics'.format(count))