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-rw-r--r--python.d/cpufreq.chart.py84
1 files changed, 84 insertions, 0 deletions
diff --git a/python.d/cpufreq.chart.py b/python.d/cpufreq.chart.py
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+++ b/python.d/cpufreq.chart.py
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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