NAME

       pmDelProfile - delete instance(s) from the current PMAPI instance profile

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmDelProfile(pmInDom indom, int numinst, int *instlist);

       cc ... -lpcp

DESCRIPTION

       The set of instances for performance metrics returned from a pmFetch(3) call may be filtered or restrict‐
       ed  using an instance profile.  There is one instance profile for each context the application creates at
       the Performance Metrics Application Programming Interface (PMAPI), and each instance profile may  include
       instances from one or more instance domains (see pmLookupDesc(3)).

       pmDelProfile may be used to delete instance specifications from the instance profile of the current PMAPI
       context.

       In the simplest variant, the list of instances identified by the instlist argument for the indom instance
       domain are removed from the instance profile.  The list of instance identifiers contains numinst values.

       The  indom  value would normally be extracted from a call to pmLookupDesc(3) for a particular performance
       metric, and the instances in instlist would typically be determined by  calls  to  pmGetInDom(3)  or  pm‐
       LookupInDom(3).

       If  indom  equals PM_INDOM_NULL and numinst is zero, then all instance domains are selected for deletion.
       If instlist is NULL, then all instances in the selected domain(s) are removed from the profile.

       To disable all available instances in all domains, use pmDelProfile(PM_INDOM_NULL, 0, NULL).  This is the
       only situation in which indom may be PM_INDOM_NULL.

CAVEAT

       It is possible to delete non-existent instance domains and non-existent instances from an  instance  pro‐
       file.   None  of the routines that use the instance profile will ever issue an error if you do this.  The
       cost of checking, when checking is possible, outweighs any benefits.

DIAGNOSTICS

       PM_ERR_PROFILESPEC
              indom was PM_INDOM_NULL and instlist was not empty

SEE ALSO

       pmAddProfile(3), PMAPI(3), pmFetch(3), pmGetInDom(3), pmLookupDesc(3), pmLookupInDom(3), pmNewContext(3),
       pmUseContext(3) and pmWhichContext(3).

Performance Co-Pilot                                   PCP                                       PMDELPROFILE(3)