pmgetpmnslocation(3) — Linux manual page


PMGETPMNSLOCATION(3)      Library Functions Manual      PMGETPMNSLOCATION(3)

NAME         top

       pmGetPMNSLocation - determine the location of the currently used PMNS

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       int pmGetPMNSLocation(void);

       cc ... -lpcp

DESCRIPTION         top

       If an application needs to know where the Performance Metrics Name
       Space (PMNS) is coming from then pmGetPMNSLocation will return
       whether it is from an archive, PMNS_ARCHIVE, or from a local PMNS
       file, PMNS_LOCAL, or from a remote pmcd, PMNS_REMOTE.

       This information may be useful in determining an appropriate error
       message depending on the PMNS' location.


       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)

SEE ALSO         top

       PMAPI(3), pmGetConfig(3), pmLoadASCIINameSpace(3),
       pmLoadNameSpace(3), pmTrimNameSpace(3), pcp.conf(5), pcp.env(5) and

DIAGNOSTICS         top

              If is not possible to determine where the location of the PMNS
              is.  This could be due to problems with the current context or
              being unable to load a local PMNS.

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
       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                PMGETPMNSLOCATION(3)