PMINFO - Online Linux Manual PageSection : 1
Updated : PCP
Source : Performance Co-Pilot
NAMEpminfo − display information about performance metrics
SYNOPSISpminfo [−dfFIlLmMstTvxz?] [−a archive] [−b batchsize] [−c dmfile] [−h hostname] [−K spec] [−[n|N] pmnsfile] [−O time] [−Z timezone] [−−container] [metricname | pmid | indom]...
DESCRIPTIONpminfo 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 text. 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.
OPTIONSThe available command line options are: −a archive, −−archive=archive Performance metric values are retrieved from the set of Performance Co-Pilot (PCP) archive log 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. −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 pmLookupLabels(3). −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 pmnsfile. −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 option. −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. −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. −?, −−help Display usage message and exit. −−container=container Specify an individual container to be queried.
FILES$PCP_VAR_DIR/pmns/* default local PMNS specification files
PCP ENVIRONMENTEnvironment 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). For environment variables affecting PCP tools, see pmGetOptions(3).
SEE ALSOPCPIntro(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). 0
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