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# -*- coding: utf-8 -*-
# Description: cpufreq netdata python.d module
# Author: Pawel Krupa (paulfantom)
import os
from base import SimpleService
# default module values (can be overridden per job in `config`)
# update_every = 2
ORDER = ['cpufreq']
CHARTS = {
'cpufreq': {
'options': [None, 'CPU Clock', 'MHz', 'cpufreq', None, 'line'],
'lines': [
# lines are created dynamically in `check()` method
]}
}
class Service(SimpleService):
def __init__(self, configuration=None, name=None):
prefix = os.getenv('NETDATA_HOST_PREFIX', "")
if prefix.endswith('/'):
prefix = prefix[:-1]
self.sys_dir = prefix + "/sys/devices"
self.filename = "scaling_cur_freq"
SimpleService.__init__(self, configuration=configuration, name=name)
self.order = ORDER
self.definitions = CHARTS
self._orig_name = ""
self.assignment = {}
self.paths = []
def _get_data(self):
raw = {}
for path in self.paths:
with open(path, 'r') as f:
raw[path] = f.read()
data = {}
for path in self.paths:
data[self.assignment[path]] = raw[path]
return data
def check(self):
try:
self.sys_dir = str(self.configuration['sys_dir'])
except (KeyError, TypeError):
self.error("No path specified. Using: '" + self.sys_dir + "'")
self._orig_name = self.chart_name
for dirpath, _, filenames in os.walk(self.sys_dir):
if self.filename in filenames:
self.paths.append(dirpath + "/" + self.filename)
if len(self.paths) == 0:
self.error("cannot find", self.filename)
return False
self.paths.sort()
i = 0
for path in self.paths:
self.assignment[path] = "cpu" + str(i)
i += 1
for name in self.assignment:
dim = self.assignment[name]
self.definitions[ORDER[0]]['lines'].append([dim, dim, 'absolute', 1, 1000])
return True
def create(self):
self.chart_name = "cpu"
status = SimpleService.create(self)
self.chart_name = self._orig_name
return status
def update(self, interval):
self.chart_name = "cpu"
status = SimpleService.update(self, interval=interval)
self.chart_name = self._orig_name
return status
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