Provided by: pcp_4.0.1-1_amd64 
NAME
pminfo - display information about performance metrics
SYNOPSIS
pminfo [-dfFlLmMtTvxz] [-a archive] [-b batchsize] [-c dmfile] [-h hostname] [-K spec] [-[n|N] pmnsfile]
[-O time] [-Z timezone] [metricname | pmid | indom]...
DESCRIPTION
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.
FILES
$PCP_VAR_DIR/pmns/*
default local PMNS specification files
PCP ENVIRONMENT
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).
SEE ALSO
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).