For use in error and diagnostic messages, pmIDStr returns a `human
readable' version of the specified Performance Metric Identifier
(PMID). The pmIDStr_r function does the same, but stores the result
in a user-supplied buffer buf of length buflen, which should have
room for at least 20 bytes.
Internally, a PMID is encoded with three fields: domain, cluster and
item. pmIDStr returns a string with each of the fields appearing as
decimal numbers, separated by periods.
The string value result from pmIDStr is held in a single static
buffer, so the returned value is only valid until the next call to
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). Values for these
variables may be obtained programmatically using the pmGetConfig(3)
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
email@example.com. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
was found in the repository was 2020-08-11.) 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 PMIDSTR(3)