pmlogsize prints information about the size of the index, metadata
and data sections of a Performance Co-Pilot (PCP) archive. The
output is intended to guide improvements in archive encoding format
for PCP developers and to help trim pmlogger(1) configuration files
to remove metrics that are bloating the PCP archives with low-value
data in production environments.
The archive arguments can be any mixture of the names of the physical
files of a PCP archive or the basename that is common to all the
component physical files in a single archive. In the latter case
archive is replaced by a list of all of the matching component file
Note the semantics is a little different to other PCP tools in that
foo.meta means just the file foo.meta, not foo.index, foo.meta,
The available command line options are:
Enable detailed reporting. This means space per instance domain
in a metadata file and space per metric (for values) in a data
Display additional information about possible replicated values
in the data file and replicated instances in the metadata file.
This option implies -d.
-x threshold, --threshold=threshold
With -d (or -r), cut off the report after at least threshold
percent of the associated space (metric values or instance
domains) has been reported. The default behaviour is equivalent
to threshold being set to 100.
Enable verbose mode. This option can be provided more than once
for additional verbosity.
Display usage message and exit.
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).
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
email@example.com. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
was found in the repository was 2020-08-11.) 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 PMLOGSIZE(1)