pminfo(1) — Linux manual page


PMINFO(1)                General Commands Manual               PMINFO(1)

NAME         top

       pminfo - display information about performance metrics

SYNOPSIS         top

       pminfo [-dfFIlLmMstTvVxz?]  [-a archive] [-b batchsize] [-c
       dmfile] [--container name] [-h hostname] [-K spec] [-[n|N]
       pmnsfile] [-O time] [-Z timezone] [metricname | pmid | indom]...

DESCRIPTION         top

       pminfo displays various types of information about performance
       metrics available through the facilities of the Performance Co-
       Pilot (PCP).

       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

       The -a option causes pminfo to use the specified set of archives
       rather than connecting to a PMCD.

       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.

OPTIONS         top

       The available command line options are:

       -a archive, --archive=archive
            Performance metric values are retrieved from the set of
            Performance Co-Pilot (PCP) archive files identified by the
            archive argument, which 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.

       -b, --batch
            This option may be used to define the maximum number of
            metrics to be fetched in a single request for the -f and -v
            options.  The default value for batchsize is 128.

       -c dmfile, --derived=dmfile
            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.

            Specify an individual container to be queried.

       -d, --desc
            Metric descriptions detailing the PMID, data type, data
            semantics, units, scale and associated instance domain.

       -f, --fetch
            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, --fetchall
            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 on some platforms).

       -h host, --host=host
            Fetch performance metrics from pmcd(1) on host, rather than
            from the default localhost.

       -I, --fullindom
            Print the InDom in verbose mode.

       -K spec, --spec-local=spec
            When using the -L/ option to fetch metrics from a local
            context, this option controls 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, --labels
            Print label sets associated with metrics and instances.
            Labels are optional metric metadata described in detail in

       -L, --local-PMDA
            Use a local context to collect metrics from DSO PMDAs on the
            local host without PMCD.  See also -K.

       -m, --pmid
            Print the PMID in terse mode.

       -M, --fullpmid
            Print the PMID in verbose mode.

       -n pmnsfile, --namespace=pmnsfile
            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

       -N pmnsfile, --uniqnames=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.

       -O time, --origin=time
            When used in conjunction with an archive source of metrics
            and the options -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.

       -s, --series
            Print time series identifiers associated with metrics,
            instances and sources.  These unique identifiers are
            calculated from intrinsic (non-optional) labels and other
            metric metadata associated with each PMAPI context
            (sources), metrics and instances.  Archive, local context or
            pmcd(1) connections for the same host all produce the same
            source identifier.  See also pmLookupLabels(3) and the -l

       -t, --oneline
            Print the ``one line'' help summary, if available.

       -T, --helptext
            Print the help text, if available.

       -v, --verify
            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/--fetch,
            -l/--labels, -I/--fullindom, -M/--fullpmid, -m/--pmid,
            -t/--oneline and -T/--helptext.

       -V, --version
            Display version number and exit.

       -x, --events
            Like the -f/--fetch option, but with the additional
            functionality that if a value is processed that is of type
            PM_TYPE_EVENT or PM_TYPE_HIGHRES_EVENT, then the event
            records will be unpacked and the details of each event
            record reported.

       -z, --hostzone
            Change the reporting timezone to the local timezone at the
            host that is the source of the performance metrics, as
            identified via either the -h or -a options.

       -Z timezone, --timezone=timezone
            By default, pminfo reports the time of day according to the
            local timezone on the system where pminfo is run.  The -Z
            option changes the timezone to timezone in the format of the
            environment variable TZ as described in environ(7).

       -?, --help
            Display usage message and exit.

FILES         top

            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

       For environment variables affecting PCP tools, see

SEE ALSO         top

       PCPIntro(1), pmcd(1), pmchart(1), pmdumplog(1), pmprobe(1),
       pmrep(1), pmval(1), PMAPI(3), pmGetOptions(3), pmLookupLabels(3),
       pmLoadDerivedConfig(3), pmSpecLocalPMDA(3), pcp.conf(5),
       pcp.env(5) and PMNS(5).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       project's upstream Git repository
       ⟨⟩ on 2023-12-22.
       (At that time, the date of the most recent commit that was found
       in the repository was 2023-12-16.)  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

Performance Co-Pilot               PCP                         PMINFO(1)

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