pmnscomp compiles a Performance Metrics Name Space (PMNS) in ASCII
format into a more efficient binary representation.
pmLoadNameSpace(3) is able to load this binary representation
significantly faster than the equivalent ASCII representation.
If outfile already exists pmnscomp will exit without overwriting it.
By convention, the name of the compiled namespace is that of the root
file of the ASCII namespace, with .bin appended. For example, the
root of the default PMNS is a file named root and the compiled
version of the entire namespace is root.bin.
The options are;
-d By default the PMNS to be compiled is expected to contain at
most one name for each unique Performance Metric Identifier
(PMID). The -d option relaxes this restriction and allows the
compilation of a PMNS in which multiple names may be associated
with a single PMID. Duplicate names are useful when a
particular metric may be logically associated with more than one
group of related metrics, or when it is desired to create
abbreviated aliases to name a set of frequently used metrics.
-f Force overwriting of an existing outfile if it already exists.
-n Normally pmnscomp operates on the default PMNS, however if the
-n option is specified an alternative namespace is loaded from
the file namespace.-v By default, pmnscomp writes a version 2 compiled namespace. If
version is 1 then pmnscomp will write a version 1 namespace
which is similar to version 2, without the extra integrity
afforded by checksums. Note that PCP version 2.0 or later can
handle both versions 1 and 2 of the binary PMNS format.
The default input PMNS is found in the file $PCP_VAR_DIR/pmns/root
unless the environment variable PMNS_DEFAULT is set, in which case
the value is assumed to be the pathname to the file containing the
default input PMNS.
default PMNS specification files
compiled version of the default PMNS, when the environment
variable PMNS_DEFAULT is unset
some standard macros for PMID generation
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).
Cannot open ``xyz'' - the filename for the root of the PMNS that was
passed to pmLoadNameSpace(3) is bogus.
Illegal PMID - either one of the three PMID components (see pmns(5))
is not an integer, or the value for one of the components is
negative, or too large.
Expected ... - specific syntax errors when a particular type of
lexical symbol was expected and not found; the messages are intended
to be self-explanatory.
Internal botch - implementation problem for the parser ...
Duplicate name ``abc'' in subtree for ``pqr.xyz'' - for each non-leaf
node, the names of all immediate descendents must be unique.
No name space entry for ``root'' - the special non-leaf node with a
pathname of ``root'' defines the root of the PMNS, and must appear
somewhere in the PMNS specification.
Multiple name space entries for ``root'' - more than one ``root''
node does not make sense!
Disconnected subtree (``abc.xyz.def'') in name space - the pathname
for this non-leaf node does not correspond to any pathname in the
PMNS, hence this non-leaf node is ``orphaned'' in the PMNS.
Cannot find definition for non-terminal node ``xyz'' in name space -
a non-terminal node is named as part of its parent's specification,
but is never defined.
Duplicate metric id (xxx) in name space for metrics ``abc'' and
``xyz'' - each PMID must be unique across the PMNS.
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
firstname.lastname@example.org. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2020-06-09. (At that time, the date of the most recent commit that
was found in the repository was 2020-06-09.) 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
Performance Co-Pilot PCP PMNSCOMP(1)