/usr/lib/python2.7/dist-packages/pcp/pmsubsys.py is in python-pcp 3.10.8build1.
This file is owned by root:root, with mode 0o644.
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# Performance Co-Pilot subsystem classes
#
# Copyright (C) 2013-2015 Red Hat.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
"""Advanced System & Process Monitor using the libpcp Wrapper module
Additional Information:
Performance Co-Pilot Web Site
http://www.pcp.io
"""
# ignore line too long, missing docstring, method could be a function,
# too many public methods
# pylint: disable=C0301
# pylint: disable=C0111
# pylint: disable=R0201
# pylint: disable=R0904
import copy
import cpmapi as c_api
from pcp.pmapi import pmErr, timeval
from ctypes import c_char_p
# python version information and compatibility
import sys
if sys.version > '3':
integer_types = (int,)
else:
integer_types = (int, long,)
# Subsystem ---------------------------------------------------------------
class Subsystem(object):
def __init__(self):
self.metrics = []
self._timestamp = timeval(0, 0)
self.diff_metrics = []
self.metric_pmids = []
self.metric_descs = []
self.metric_values = []
self.metrics_dict = {}
self._last_values = []
def _R_timestamp(self):
return self._timestamp
timestamp = property(_R_timestamp, None, None, None)
def setup_metrics(self, pcp):
# remove any unsupported metrics
name_pattern = self.metrics[0].split(".")[0] + ".*"
for j in range(len(self.metrics)-1, -1, -1):
try:
self.metric_pmids = pcp.pmLookupName(self.metrics[j])
except pmErr as e:
self.metrics.remove(self.metrics[j])
if (len(self.metrics) == 0):
raise pmErr(c_api.PM_ERR_NAME, "", name_pattern)
self.metrics_dict = dict((i, self.metrics.index(i)) for i in self.metrics)
self.metric_pmids = pcp.pmLookupName(self.metrics)
self.metric_descs = pcp.pmLookupDescs(self.metric_pmids)
self.metric_values = [0 for i in range(len(self.metrics))]
self._last_values = [0 for i in range(len(self.metrics))]
def dump_metrics(self):
metrics_string = ""
for i in range(len(self.metrics)):
metrics_string += self.metrics[i]
metrics_string += " "
return metrics_string
def get_scalar_value(self, var, idx):
if type(var) == type(u'') or type(var) == type(b''):
value = self.get_metric_value(var)
else:
value = self.metric_values[var]
if not isinstance(value, integer_types):
return value[idx]
else:
return value
def get_metric_value(self, idx):
if idx in self.metrics:
return self.metric_values[self.metrics_dict[idx]]
else:
return 0
def get_old_scalar_value(self, var, idx):
aidx = 0
if var in self.metrics:
aidx = self.metrics_dict[var]
aval = self._last_values[aidx]
else:
return 0
val = self.get_atom_value(aval[idx], None, self.metric_descs[aidx], False)
if isinstance(val, integer_types):
return val
else:
return val[idx]
def get_len(self, var):
if not isinstance(var, integer_types):
return len(var)
else:
return 1
def get_atom_value(self, atom1, atom2, desc, want_diff): # pylint: disable-msg=R0913
# value conversion and diff, if required
atom_type = desc.type
if atom2 == None:
want_diff = False
if atom_type == c_api.PM_TYPE_32:
if want_diff:
return atom1.l - atom2.l
else:
return atom1.l
elif atom_type == c_api.PM_TYPE_U32:
if want_diff:
return atom1.ul - atom2.ul
else:
return atom1.ul
elif atom_type == c_api.PM_TYPE_64:
if want_diff:
return atom1.ll - atom2.ll
else:
return atom1.ll
elif atom_type == c_api.PM_TYPE_U64:
if want_diff:
return atom1.ull - atom2.ull
else:
return atom1.ull
elif atom_type == c_api.PM_TYPE_FLOAT:
if want_diff:
return atom1.f - atom2.f
else:
return atom1.f
elif atom_type == c_api.PM_TYPE_DOUBLE:
if want_diff:
return atom1.d - atom2.d
else:
return atom1.d
elif atom_type == c_api.PM_TYPE_STRING:
atom_str = c_char_p(atom1.cp)
return str(atom_str.value.decode())
else:
return 0
def get_stats(self, pcp):
if len(self.metrics) <= 0:
raise pmErr
list_type = type([])
if self._timestamp.tv_sec == 0:
first = True
else:
first = False
try:
metric_result = pcp.pmFetch(self.metric_pmids)
self._timestamp = copy.deepcopy(metric_result.contents.timestamp)
except pmErr as e:
self._timestamp = timeval(0, 0)
raise e
# list of metric names
for i in range(len(self.metrics)):
# list of metric results, one per metric name
for j in range(metric_result.contents.numpmid):
if (metric_result.contents.get_pmid(j) != self.metric_pmids[i]):
continue
atomlist = []
# list of instances, one or more per metric. e.g. there are many
# instances for network metrics, one per network interface
for k in range(metric_result.contents.get_numval(j)):
atom = pcp.pmExtractValue(metric_result.contents.get_valfmt(j), metric_result.contents.get_vlist(j, k), self.metric_descs[j].type, self.metric_descs[j].type)
atomlist.append(atom)
value = []
# metric may require a diff to get a per interval value
for k in range(metric_result.contents.get_numval(j)):
if type(self._last_values[j]) == list_type:
try:
lastval = self._last_values[j][k]
except IndexError:
lastval = None
else:
lastval = self._last_values[j]
if first:
want_diff = False
elif self.metrics[j] in self.diff_metrics:
want_diff = True
elif (self.metric_descs[j].sem == c_api.PM_SEM_DISCRETE
or self.metric_descs[j].sem == c_api.PM_SEM_INSTANT) :
want_diff = False
else:
want_diff = True
value.append(self.get_atom_value(atomlist[k], lastval, self.metric_descs[j], want_diff))
self._last_values[j] = copy.copy(atomlist)
if metric_result.contents.get_numval(j) == 1:
if len(value) == 1:
self.metric_values[j] = copy.copy(value[0])
else:
self.metric_values[j] = 0
elif metric_result.contents.get_numval(j) > 1:
self.metric_values[j] = copy.copy(value)
pcp.pmFreeResult(metric_result)
# Processor --------------------------------------------------------------
def init_processor_metrics(self):
self.cpu_total = 0
self.metrics += ['hinv.ncpu', 'hinv.cpu.clock',
'kernel.all.cpu.idle', 'kernel.all.cpu.intr',
'kernel.all.cpu.irq.hard', 'kernel.all.cpu.irq.soft',
'kernel.all.cpu.nice', 'kernel.all.cpu.steal',
'kernel.all.cpu.sys', 'kernel.all.cpu.user',
'kernel.all.cpu.wait.total', 'kernel.all.intr',
'kernel.all.load', 'kernel.all.pswitch',
'kernel.all.uptime', 'kernel.percpu.cpu.nice',
'kernel.percpu.cpu.user', 'kernel.percpu.cpu.intr',
'kernel.percpu.cpu.sys', 'kernel.percpu.cpu.steal',
'kernel.percpu.cpu.irq.hard',
'kernel.percpu.cpu.irq.soft',
'kernel.percpu.cpu.wait.total',
'kernel.percpu.cpu.idle', 'kernel.all.nprocs',
'kernel.all.runnable',
# multiple inheritance?
'proc.runq.blocked', 'proc.runq.defunct',
'proc.runq.runnable', 'proc.runq.sleeping']
self.diff_metrics = ['kernel.all.uptime']
def get_total(self):
self.cpu_total = (self.get_metric_value('kernel.all.cpu.nice') +
self.get_metric_value('kernel.all.cpu.user') +
self.get_metric_value('kernel.all.cpu.intr') +
self.get_metric_value('kernel.all.cpu.sys') +
self.get_metric_value('kernel.all.cpu.idle') +
self.get_metric_value('kernel.all.cpu.steal') +
self.get_metric_value('kernel.all.cpu.irq.hard') +
self.get_metric_value('kernel.all.cpu.irq.soft') )
# Disk -----------------------------------------------------------------
def init_disk_metrics(self):
self.metrics += ['disk.all.read', 'disk.all.write',
'disk.all.read_bytes', 'disk.all.write_bytes',
'disk.all.read_merge', 'disk.all.write_merge',
'disk.dev.avactive',
'disk.dev.blkread', 'disk.dev.blkwrite',
'disk.dev.read', 'disk.dev.read_bytes',
'disk.dev.read_merge', 'disk.dev.total',
'disk.dev.write','disk.dev.write_bytes',
'disk.dev.write_merge',
'disk.partitions.blkread', 'disk.partitions.blkwrite',
'disk.partitions.read', 'disk.partitions.write' ]
# Memory -----------------------------------------------------------------
def init_memory_metrics(self):
self.metrics += ['mem.freemem', 'mem.physmem', 'mem.util.anonpages',
'mem.util.bufmem',
'mem.util.cached', 'mem.util.commitLimit',
'mem.util.committed_AS',
'mem.util.inactive',
'mem.util.inactive', 'mem.util.mapped',
'mem.util.mlocked',
'mem.util.shmem', 'mem.util.slab',
'mem.util.swapFree',
'mem.util.swapTotal', 'mem.util.used',
'mem.vmstat.allocstall', 'mem.vmstat.pgfault',
'mem.vmstat.pginodesteal',
'mem.vmstat.pgmajfault', 'mem.vmstat.pgpgin',
'mem.vmstat.pgpgout', 'mem.vmstat.pswpin',
'mem.vmstat.pswpout', 'mem.vmstat.slabs_scanned',
'swap.free', 'swap.pagesin',
'swap.pagesout', 'swap.used' ]
# Network -----------------------------------------------------------------
def init_network_metrics(self):
self.metrics += ['network.interface.in.bytes',
'network.interface.in.packets',
'network.interface.out.bytes',
'network.interface.out.packets',
'network.interface.in.mcasts',
'network.interface.total.mcasts',
'network.interface.in.compressed',
'network.interface.out.compressed',
'network.interface.in.errors',
'network.interface.out.errors',
'network.icmp.inmsgs',
'network.icmp.outmsgs',
'network.ip.forwdatagrams', 'network.ip.indelivers',
'network.ip.inreceives', 'network.ip.outrequests',
'network.tcp.activeopens',
'network.tcp.insegs',
'network.tcp.outsegs',
'network.tcp.passiveopens',
'network.udp.indatagrams',
'network.udp.outdatagrams' ]
# Process -----------------------------------------------------------------
def init_process_metrics(self):
self.metrics += ['proc.id.uid', 'proc.id.uid_nm',
'proc.memory.datrss', 'proc.memory.librss',
'proc.memory.textrss', 'proc.memory.vmstack',
'proc.nprocs', 'proc.psinfo.cmd',
'proc.psinfo.maj_flt', 'proc.psinfo.minflt',
'proc.psinfo.pid',
'proc.psinfo.rss', 'proc.psinfo.sname',
'proc.psinfo.stime', 'proc.psinfo.threads',
'proc.psinfo.utime', 'proc.psinfo.vsize',
'proc.runq.runnable', 'proc.runq.sleeping',
'proc.runq.blocked', 'proc.runq.defunct',
]
self.diff_metrics += ['proc.psinfo.rss', 'proc.psinfo.vsize']
# Interrupt --------------------------------------------------------------
def init_interrupt_metrics(self):
self.metrics += ['kernel.percpu.interrupts.MCP',
'kernel.percpu.interrupts.MCE',
'kernel.percpu.interrupts.THR',
'kernel.percpu.interrupts.TRM',
'kernel.percpu.interrupts.TLB',
'kernel.percpu.interrupts.CAL',
'kernel.percpu.interrupts.RES',
'kernel.percpu.interrupts.RTR',
'kernel.percpu.interrupts.IWI',
'kernel.percpu.interrupts.PMI',
'kernel.percpu.interrupts.SPU',
'kernel.percpu.interrupts.LOC',
'kernel.percpu.interrupts.line46',
'kernel.percpu.interrupts.line45',
'kernel.percpu.interrupts.line44',
'kernel.percpu.interrupts.line43',
'kernel.percpu.interrupts.line42',
'kernel.percpu.interrupts.line41',
'kernel.percpu.interrupts.line40',
'kernel.percpu.interrupts.line23',
'kernel.percpu.interrupts.line19',
'kernel.percpu.interrupts.line18',
'kernel.percpu.interrupts.line16',
'kernel.percpu.interrupts.line12',
'kernel.percpu.interrupts.line9',
'kernel.percpu.interrupts.line8',
'kernel.percpu.interrupts.line1',
'kernel.percpu.interrupts.line0',
]
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