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NAME | C SYNOPSIS | DESCRIPTION | CAVEAT | DIAGNOSTICS | SEE ALSO | COLOPHON |
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PMADDPROFILE(3) Library Functions Manual PMADDPROFILE(3)
pmAddProfile - add instance(s) to the current PMAPI instance
profile
#include <pcp/pmapi.h>
int pmAddProfile(pmInDom indom, int numinst, int *instlist);
cc ... -lpcp
The set of instances for performance metrics returned from a
pmFetch(3) call may be filtered or restricted using an instance
profile. There is one instance profile for each context the ap‐
plication creates at the Performance Metrics Application Program‐
ming Interface (PMAPI(3)), and each instance profile may include
instances from one or more instance domains (see pmLookupDesc(3)).
pmAddProfile may be used to add new instance specifications to 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 added to the
instance profile. The list of instance identifiers contains nu‐
minst values.
The indom value would normally be extracted from a call to
pmLookupDesc(3) for a particular performance metric, and the in‐
stances in instlist would typically be determined by calls to
pmGetInDom(3) or pmLookupInDom(3).
To select all instances in all instance domains, use
pmAddProfile(PM_INDOM_NULL, 0, (int *)0)
This is the only case where indom may be equal to PM_INDOM_NULL.
If numinst is zero, or instlist is NULL, then all instances in in‐
dom are selected.
It is possible to add non-existent instance domains and non-exis‐
tent instances to an instance profile. 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.
PM_ERR_PROFILESPEC
indom was PM_INDOM_NULL and instlist was not empty
PMAPI(3), pmDelProfile(3), pmFetch(3), pmGetInDom(3),
pmLookupDesc(3), pmLookupInDom(3), pmNewContext(3),
pmUseContext(3) and pmWhichContext(3).
This page is part of the PCP (Performance Co-Pilot) project. In‐
formation about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
pcp@groups.io. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2025-08-11. (At that time, the date of the most recent commit
that was found in the repository was 2025-08-11.) 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 man-pages@man7.org
Performance Co-Pilot PCP PMADDPROFILE(3)
Pages that refer to this page: pcpintro(3), pmapi(3), pmdelprofile(3), pmfetch(3), pmnewcontext(3), pmwebapi(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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