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HTML rendering created 2025-02-02 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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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | DIAGNOSTICS | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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CHKHELP(1) General Commands Manual CHKHELP(1)
chkhelp - check performance metrics help text files
$PCP_BINADM_DIR/chkhelp [-eHiOp?] [-n pmnsfile] helpfile
[metricname ...]
chkhelp checks the consistency of Performance Co-Pilot help text
files generated by newhelp(1) and used by Performance Metric
Domain Agents (PMDAs). The checking involves scanning the files,
and optionally displaying selected entries.
The files helpfile.dir and helpfile.pag are created by newhelp(1),
and are assumed to already exist.
Without any options or metricname arguments, chkhelp silently
verifies the structural integrity of the help files.
If any metricname arguments are specified, then the help entries
for only the corresponding metrics will be processed.
If no metricname arguments are specified, then at least one of the
options -i or -p must be given. The -i option causes entries for
all instance domains to be processed (ignoring entries for
performance metrics). The -p option causes entries for all
metrics to be displayed (ignoring entries for instance domains).
When metric entries are to be processed (via either the metricname
arguments or the -p option or the -i option), the -O and -H
options request the display of the one-line and verbose help text
respectively. The default is -O.
Normally chkhelp operates on the default Performance Metrics Name
Space (PMNS), however if the -n option is specified an alternative
namespace is loaded from the file pmnsfile.
The -e option provides an existence check where all of the
specified metrics from the PMNS (note, not from helpfile) are
scanned, and only the names of the metrics for which no help text
exists are reported. The -e option is mutually exclusive with the
-i and/or -p options.
The available command line options are:
-e Report metrics with no help text.
-H Display verbose help text and exit.
-i Process all the instance domains.
-n pmnsfile
Load an alternative Performance Metrics Name Space (PMNS(5))
from the file pmnsfile.
-O Display the one line help summary.
-p Process all the metrics (PMIDs).
-? Display usage message and exit.
There are all sorts of reasons a help database may be
inconsistent, the most likely is that a performance metric in the
database is not defined in the loaded PMNS.
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).
For environment variables affecting PCP tools, see
pmGetOptions(3).
newhelp(1), PMAPI(3), pmLookupInDomText(3), pmLookupText(3),
pcp.conf(5), pcp.env(5) and PMNS(5).
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 2025-02-02.
(At that time, the date of the most recent commit that was found
in the repository was 2025-01-30.) 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 CHKHELP(1)
Pages that refer to this page: newhelp(1), pmlookupindomtext(3), pmlookuptext(3)
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HTML rendering created 2025-02-02 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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