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NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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PMPRINTVALUE(3) Library Functions Manual PMPRINTVALUE(3)
pmPrintValue - print a performance metric value
#include <stdio.h>
#include <pcp/pmapi.h>
void pmPrintValue(FILE *f, int valfmt, int type,
const pmValue *val, int minwidth);
cc ... -lpcp
The value of a single performance metric (as identified by val)
is printed on the standard I/O stream identified by f.
The value of the performance metric is interpreted according to
the format of val as defined by valfmt (from a pmValueSet within
a pmResult structure; see pmFetch(3)) and the generic description
of the metrics type passed in via type.
The value for type is typically extracted from a pmDesc struc‐
ture, following a call to pmLookupDesc(3) for a particular per‐
formance metric.
The output will be optionally padded to be at least minwidth
characters wide.
pmPrintValue is most useful for displaying values of performance
metrics from pmFetch(3) (which returns a set of valfmt and val
pairs for each requested metric), based upon the metrics type as
returned from pmLookupDesc(3).
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3),
pmFetch(3), pmLookupDesc(3), pmTypeStr(3) and pmUnitsStr(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
[email protected]. 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
[email protected]
Performance Co-Pilot PCP PMPRINTVALUE(3)
Pages that refer to this page: pmprobe(1), pmapi(3), pmatomstr(3), pmconvscale(3), pmextractvalue(3), pmsemstr(3), pmtypestr(3), pmunitsstr(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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