s4z / plumd

plumd/readers/linux/uptime.py

# -*- coding: utf-8 -*-
"""Reader plugin to record uptime from /proc on Linux."""
import multiprocessing

import plumd
from plumd.util import get_file

__author__ = 'Kenny Freeman'
__email__ = 'kenny.freeman@gmail.com'
__license__ = "ISCL"
__docformat__ = 'reStructuredText'


class Uptime(plumd.Reader):
    """Plugin to measure various kernel metrics from /proc."""

    defaults = {
        'poll.interval': 10,
        'proc_path': '/proc'
    }

    def __init__(self, log, config):
        """Plugin to measure kernel metrics from /proc/uptime.

        :param log: A logger
        :type log: logging.RootLogger
        :param config: a plumd.config.Conf configuration helper instance.
        :type config: plumd.config.Conf
        """
        super(Uptime, self).__init__(log, config)
        self.config.defaults(Uptime.defaults)
        self.proc_file = "{0}/uptime".format(config.get('proc_path'))

    def poll(self):
        """Return uptime from proc file swap.

        :rtype: plumd.ResultSet
        """
        return plumd.ResultSet(self.check())

    def check(self):
        """Return uptime from proc file swap.

        :rtype: list
        """
        result = plumd.Result("uptime")
        # read and process /proc/stat
        up, idle = get_file(self.proc_file).strip().split()
        pidle = float(idle) / float(up) * 100 / multiprocessing.cpu_count()

The Module multiprocessing does not seem to have a member named cpu_count.

        result.add(plumd.Float("up", up))
        result.add(plumd.Float("idle", idle))
        result.add(plumd.Float("idle_percent", pidle))
        return [result]