pmdadenki(1) — Linux manual page


PMDADENKI(1)             General Commands Manual            PMDADENKI(1)

NAME         top

       pmdadenki - metrics related to the systems electrical consumption

SYNOPSIS         top

       $PCP_PMDAS_DIR/denki/pmdadenki [-d domain] [-l logfile]

DESCRIPTION         top

       pmdadenki is a Performance Metrics Domain Agent (PMDA) which
       extracts electricity related performance metrics.

       Currently, metrics from RAPL (on Intel cpus) and battery charge
       values are available, if supported by the hardware.

       -l Location of the log file.  By default, a log file named
       denki.log is written in the current directory of pmcd(1) when
       pmdadenki is started, i.e.  $PCP_LOG_DIR/pmcd.  If the log file
       cannot be created or is not writable, output is written to the
       standard error instead.

INSTALLATION         top

       The denki PMDA is installed and available by default on Linux.
       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/denki
            # ./Remove

       If you want to establish access to the names, help text and
       values for the denki metrics once more, after removal, do the
       following as root:

            # cd $PCP_PMDAS_DIR/denki
            # ./Install

       pmdadenki is launched by pmcd(1) and should never be executed
       directly.  The Install and Remove scripts notify pmcd(1) when the
       agent is installed or removed.

FILES         top

              command line options used to launch pmdadenki
              default help text file for the denki metrics
              installation script for the pmdadenki agent
              undo installation script for the pmdadenki agent
              default log file for error messages and other information
              from pmdadenki


       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

SEE ALSO         top

       PCPIntro(1), pmcd(1), denki/READMEfile pcp.conf(5) and

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       project's upstream Git repository
       ⟨⟩ on 2024-06-14.
       (At that time, the date of the most recent commit that was found
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       (which is not part of the original manual page), send a mail to

Performance Co-Pilot               PCP                      PMDADENKI(1)