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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
application creates at the Performance Metrics Application
Programming 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
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 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
indom are selected.
It is possible to add non-existent instance domains and non-
existent 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.
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 pcp@groups.io. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2024-06-14.
(At that time, the date of the most recent commit that was found
in the repository was 2024-06-14.) 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 2024-06-26 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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