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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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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
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NEWHELP(1) General Commands Manual NEWHELP(1)
newhelp - generate a performance metrics help database
$PCP_BINADM_DIR/newhelp [-vV?] [-n pmnsfile] [-o outputfile]
[file ...]
newhelp generates the Performance Co-Pilot help text files used
by Performance Metric Domain Agents (PMDAs).
Normally newhelp 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.
When there is only one input file, the base name of the new
database is derived from the name of the input file, otherwise
the -o flag must be given to explicitly name the database. If no
input files are supplied, newhelp reads from the standard input
stream, in which case the -o flag must be given.
If the output file name is determined to be foo, newhelp will
create foo.dir and foo.pag.
The -V flag causes verbose messages to be printed while newhelp
is parsing its input.
The first line of each entry in a help source file consists of an
``@'' character beginning the line followed by a space and then
the performance metric name and a one line description of the
metric. Following lines (up to the next line beginning with
``@'' or end of file) may contain a verbose help description.
E.g.
#
# This is an example of newhelp's input syntax
#
@ kernel.all.cpu.idle CPU idle time
A cumulative count of the number of milliseconds
of CPU idle time, summed over all processors.
Three-part numeric metric identifiers (PMIDs) may be used in
place of metric names, e.g. 60.0.23 rather than
kernel.all.cpu.idle in the example above. Other than for dynamic
metrics (where the existence of a metric is known to a PMDA, but
not visible in the PMNS and hence has no name that could be known
to newhelp) use of this syntactic variant is not encouraged.
Lines beginning with ``#'' are ignored, as are blank lines in the
file before the first ``@''. The verbose help text is optional.
As a special case, a ``metric'' name of the form NNN.MM (for
numeric NNN and MM) is interpreted as an instance domain
identification, and the text describes the instance domain.
The available command line options are:
-o output, --output=outout
Specify base name for output files.
-n pmnsfile, --namespace=pmnsfile
Load an alternative Performance Metrics Name Space (PMNS(5))
from the file pmnsfile.
-v version, --version=version
Set output version. This options is deprecated, the only
supported value is 2.
-V, --verbose
Print verbose output.
-?, --help
Display usage message and exit.
$PCP_VAR_DIR/pmns/*
default PMNS specification files
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).
chkhelp(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 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 NEWHELP(1)
Pages that refer to this page: chkhelp(1), pmda(3), pmdahelp(3), pmdainit(3), pmdatext(3), pmlookupindomtext(3), pmlookuptext(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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