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NAME | SYNOPSIS | DESCRIPTION | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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PMINFO(1) General Commands Manual PMINFO(1)
pminfo - display information about performance metrics
pminfo [-dfFlLmMtTvxz] [-a archive] [-b batchsize] [-c dmfile] [-h
hostname] [-K spec] [-[n|N] pmnsfile] [-O time] [-Z timezone]
[metricname | pmid | indom]...
pminfo displays various types of information about performance
metrics available through the facilities of the Performance Co-Pilot
(PCP).
Normally pminfo operates on the distributed Performance Metrics Name
Space (PMNS), however if the -n option is specified an alternative
local PMNS is loaded from the file pmnsfile. The -N option supports
the same function as -n, except for the handling of duplicate names
for the same Performance Metric Identifier (PMID) in pmnsfile -
duplicate names are allowed with -n but they are not allowed with -N.
The metrics of interest are named in the metricname arguments. If
metricname is a non-leaf node in the PMNS, then pminfo will
recursively descend the PMNS and report on all leaf nodes. If no
metricname argument is given, the root of the PMNS is used.
If the metricname argument is in numeric dotted notation, it is
interpreted as either a 3-dotted pmid (metric identifier - domain,
cluster, item numbers) or a 2-dotted indom (instance domain
identifier - domain, serial number). In the pmid case, a reverse
PMID-to-name lookup is performed, and in the indom case, the instance
domain is reported directly. This latter mode can be used to report
the instance domain ``one line'' and long form help text summaries.
Unless directed to another host by the -h option, by default pminfo
will contact the Performance Metrics Collector Daemon (PMCD) on the
local host. The connection to a PMCD is only required if pminfo
requires distributed PMNS information, and/or meta-data describing
metrics, and/or metric values, and/or help text.
The -a option causes pminfo to use the specified set of archives
rather than connecting to a PMCD. The argument to -a is a comma-
separated list of names, each of which may be the base name of an
archive or the name of a directory containing one or more archives.
The -a , -h and -L options are mutually exclusive.
The -L option causes pminfo to use a local context to collect metrics
from PMDAs on the local host without PMCD. Only some metrics are
available in this mode. The -a,-h and -L options are mutually
exclusive.
The -b option may be used to define the maximum size of the group of
metrics to be fetched in a single request for the -f and -v options.
The default value for batchsize is 128.
Other options control the specific information to be reported.
-c The dmfile argument specifies a file that contains derived
metric definitions in the format described for
pmLoadDerivedConfig(3). The -c option provides a way to load
derived metric definitions that is an alternative to the more
generic use of the PCP_DERIVED_CONFIG environment variable as
described in PCPIntro(1). Using the -c option and the
PCP_DERIVED_CONFIG environment variable to specify the same
configuration is a bad idea, so choose one or the other method.
-d Metric descriptions detailing the PMID, data type, data
semantics, units, scale and associated instance domain.
-f Fetch and print values for all instances. When fetching from a
set of archives, only those instances present in the first
archive record for a metric will be displayed; see also the -O
option, else use pmdumplog(1) which may be a better tool for
examining archives.
-F Same as -f but try harder to fetch instances for metrics which
have non-enumerable instance domains (e.g. metrics in the
``proc'' subtree of the default PMNS).
-K When using the -L option to fetch metrics from a local context,
the -K option may be used to control the DSO PMDAs that should
be made accessible. The spec argument conforms to the syntax
described in pmSpecLocalPMDA(3). More than one -K option may be
used.
-l Print label sets associated with metrics, instance domains and
values. Labels are optional metric metadata described in detail
in pmLookupLabels(3).
-m Print the PMID in terse mode.
-M Print the PMID in verbose mode.
-O When used in conjunction with an archive source of metrics and
the options -f or -F, the time argument defines a time origin at
which the metrics should be fetched from the set of archives.
Refer to PCPIntro(1) for a complete description of this option,
and the syntax for the time argument.
-t Print the ``one line'' help summary, if available.
-T Print the help text, if available.
-v Verify mode in which descriptions and values are retrieved, but
only error conditions are reported. This option silently
disables any output from the options -f, -M, -m, -t and -T.
-x Like the -f option, but with the additional functionality that
if a value is processed that is of type PM_TYPE_EVENT, then the
event records will be unpacked and the details of each event
record reported.
$PCP_VAR_DIR/pmns/*
default local PMNS specification files
Environment variables with the prefix PCP_ are used to parameterize
the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables.
The $PCP_CONF variable may be used to specify an alternative
configuration file, as described in pcp.conf(5).
PCPIntro(1), pmcd(1), pmchart(1), pmdumplog(1), pmdumptext(1),
pmprobe(1), pmrep(1), pmval(1), PMAPI(3), pmLookupLabels(3),
pmLoadDerivedConfig(3), pmSpecLocalPMDA(3), pcp.conf(5), pcp.env(5)
and pmns(5).
This page is part of the PCP (Performance Co-Pilot) project.
Information about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
pcp@groups.io. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-02-02.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Performance Co-Pilot PCP PMINFO(1)
Pages that refer to this page: pcp2elasticsearch(1), pcp2graphite(1), pcp2influxdb(1), pcp2json(1), pcp2xlsx(1), pcp2xml(1), pcp2zabbix(1), pcpintro(1), pmcd(1), pmchart(1), pmclient(1), pmdagluster(1), pmdajson(1), pmdalio(1), pmdaoracle(1), pmdaprometheus(1), pmdatrace(1), pmdaweblog(1), pmie(1), pmprobe(1), pmrep(1), pmsocks(1), pmstore(1), pmval(1), pcpintro(3), pmdalabel(3), pmgetoptions(3), pmmergelabels(3), zbxpcp(3)
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