diff options
Diffstat (limited to 'collectors/python.d.plugin/cpuidle')
| -rw-r--r-- | collectors/python.d.plugin/cpuidle/Makefile.inc | 13 | ||||
| -rw-r--r-- | collectors/python.d.plugin/cpuidle/README.md | 13 | ||||
| -rw-r--r-- | collectors/python.d.plugin/cpuidle/cpuidle.chart.py | 148 | ||||
| -rw-r--r-- | collectors/python.d.plugin/cpuidle/cpuidle.conf | 38 |
4 files changed, 0 insertions, 212 deletions
diff --git a/collectors/python.d.plugin/cpuidle/Makefile.inc b/collectors/python.d.plugin/cpuidle/Makefile.inc deleted file mode 100644 index 66c47d3cf..000000000 --- a/collectors/python.d.plugin/cpuidle/Makefile.inc +++ /dev/null @@ -1,13 +0,0 @@ -# SPDX-License-Identifier: GPL-3.0-or-later - -# THIS IS NOT A COMPLETE Makefile -# IT IS INCLUDED BY ITS PARENT'S Makefile.am -# IT IS REQUIRED TO REFERENCE ALL FILES RELATIVE TO THE PARENT - -# install these files -dist_python_DATA += cpuidle/cpuidle.chart.py -dist_pythonconfig_DATA += cpuidle/cpuidle.conf - -# do not install these files, but include them in the distribution -dist_noinst_DATA += cpuidle/README.md cpuidle/Makefile.inc - diff --git a/collectors/python.d.plugin/cpuidle/README.md b/collectors/python.d.plugin/cpuidle/README.md deleted file mode 100644 index bb6722a11..000000000 --- a/collectors/python.d.plugin/cpuidle/README.md +++ /dev/null @@ -1,13 +0,0 @@ -# cpuidle - -This module monitors the usage of CPU idle states. - -**Requirement:** -Your kernel needs to have `CONFIG_CPU_IDLE` enabled. - -It produces one stacked chart per CPU, showing the percentage of time spent in -each state. - ---- - -[]() diff --git a/collectors/python.d.plugin/cpuidle/cpuidle.chart.py b/collectors/python.d.plugin/cpuidle/cpuidle.chart.py deleted file mode 100644 index feac025bf..000000000 --- a/collectors/python.d.plugin/cpuidle/cpuidle.chart.py +++ /dev/null @@ -1,148 +0,0 @@ -# -*- coding: utf-8 -*- -# Description: cpuidle netdata python.d module -# Author: Steven Noonan (tycho) -# SPDX-License-Identifier: GPL-3.0-or-later - -import ctypes -import glob -import os -import platform - -from bases.FrameworkServices.SimpleService import SimpleService - -syscall = ctypes.CDLL('libc.so.6').syscall - -# default module values (can be overridden per job in `config`) -# update_every = 2 - - -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/system/cpu" - self.schedstat_path = prefix + "/proc/schedstat" - SimpleService.__init__(self, configuration=configuration, name=name) - self.order = [] - self.definitions = {} - self.fake_name = 'cpu' - self.assignment = {} - self.last_schedstat = None - - @staticmethod - def __gettid(): - # This is horrendous. We need the *thread id* (not the *process id*), - # but there's no Python standard library way of doing that. If you need - # to enable this module on a non-x86 machine type, you'll have to find - # the Linux syscall number for gettid() and add it to the dictionary - # below. - syscalls = { - 'i386': 224, - 'x86_64': 186, - } - if platform.machine() not in syscalls: - return None - tid = syscall(syscalls[platform.machine()]) - return tid - - def __wake_cpus(self, cpus): - # Requires Python 3.3+. This will "tickle" each CPU to force it to - # update its idle counters. - if hasattr(os, 'sched_setaffinity'): - pid = self.__gettid() - save_affinity = os.sched_getaffinity(pid) - for idx in cpus: - os.sched_setaffinity(pid, [idx]) - os.sched_getaffinity(pid) - os.sched_setaffinity(pid, save_affinity) - - def __read_schedstat(self): - cpus = {} - for line in open(self.schedstat_path, 'r'): - if not line.startswith('cpu'): - continue - line = line.rstrip().split() - cpu = line[0] - active_time = line[7] - cpus[cpu] = int(active_time) // 1000 - return cpus - - def _get_data(self): - results = {} - - # Use the kernel scheduler stats to determine how much time was spent - # in C0 (active). - schedstat = self.__read_schedstat() - - # Determine if any of the CPUs are idle. If they are, then we need to - # tickle them in order to update their C-state residency statistics. - if self.last_schedstat is None: - needs_tickle = list(self.assignment.keys()) - else: - needs_tickle = [] - for cpu, active_time in self.last_schedstat.items(): - delta = schedstat[cpu] - active_time - if delta < 1: - needs_tickle.append(cpu) - - if needs_tickle: - # This line is critical for the stats to update. If we don't "tickle" - # idle CPUs, then the counters for those CPUs stop counting. - self.__wake_cpus([int(cpu[3:]) for cpu in needs_tickle]) - - # Re-read schedstat now that we've tickled any idlers. - schedstat = self.__read_schedstat() - - self.last_schedstat = schedstat - - for cpu, metrics in self.assignment.items(): - update_time = schedstat[cpu] - results[cpu + '_active_time'] = update_time - - for metric, path in metrics.items(): - residency = int(open(path, 'r').read()) - results[metric] = residency - - return results - - def check(self): - if self.__gettid() is None: - self.error('Cannot get thread ID. Stats would be completely broken.') - return False - - for path in sorted(glob.glob(self.sys_dir + '/cpu*/cpuidle/state*/name')): - # ['', 'sys', 'devices', 'system', 'cpu', 'cpu0', 'cpuidle', 'state3', 'name'] - path_elem = path.split('/') - cpu = path_elem[-4] - state = path_elem[-2] - statename = open(path, 'rt').read().rstrip() - - orderid = '%s_cpuidle' % (cpu,) - if orderid not in self.definitions: - self.order.append(orderid) - active_name = '%s_active_time' % (cpu,) - self.definitions[orderid] = { - 'options': [None, 'C-state residency', 'time%', 'cpuidle', 'cpuidle.cpuidle', 'stacked'], - 'lines': [ - [active_name, 'C0 (active)', 'percentage-of-incremental-row', 1, 1], - ], - } - self.assignment[cpu] = {} - - defid = '%s_%s_time' % (orderid, state) - - self.definitions[orderid]['lines'].append( - [defid, statename, 'percentage-of-incremental-row', 1, 1] - ) - - self.assignment[cpu][defid] = '/'.join(path_elem[:-1] + ['time']) - - # Sort order by kernel-specified CPU index - self.order.sort(key=lambda x: int(x.split('_')[0][3:])) - - if not self.definitions: - self.error("couldn't find cstate stats") - return False - - return True diff --git a/collectors/python.d.plugin/cpuidle/cpuidle.conf b/collectors/python.d.plugin/cpuidle/cpuidle.conf deleted file mode 100644 index 25f5fed64..000000000 --- a/collectors/python.d.plugin/cpuidle/cpuidle.conf +++ /dev/null @@ -1,38 +0,0 @@ -# netdata python.d.plugin configuration for cpuidle -# -# This file is in YaML format. Generally the format is: -# -# name: value -# -# There are 2 sections: -# - global variables -# - one or more JOBS -# -# JOBS allow you to collect values from multiple sources. -# Each source will have its own set of charts. -# -# JOB parameters have to be indented (using spaces only, example below). - -# ---------------------------------------------------------------------- -# Global Variables -# These variables set the defaults for all JOBs, however each JOB -# may define its own, overriding the defaults. - -# update_every sets the default data collection frequency. -# If unset, the python.d.plugin default is used. -# update_every: 1 - -# priority controls the order of charts at the netdata dashboard. -# Lower numbers move the charts towards the top of the page. -# If unset, the default for python.d.plugin is used. -# priority: 60000 - -# penalty indicates whether to apply penalty to update_every in case of failures. -# Penalty will increase every 5 failed updates in a row. Maximum penalty is 10 minutes. -# penalty: yes - -# autodetection_retry sets the job re-check interval in seconds. -# The job is not deleted if check fails. -# Attempts to start the job are made once every autodetection_retry. -# This feature is disabled by default. -# autodetection_retry: 0 |