pmdaroomtemp(1) — Linux manual page


PMDAROOMTEMP(1)            General Commands Manual           PMDAROOMTEMP(1)

NAME         top

       pmdaroomtemp  -  room  temperature  performance  metrics domain agent

SYNOPSIS         top

       $PCP_PMDAS_DIR/roomtemp/pmdaroomtemp [-d domain] [-l logfile]

DESCRIPTION         top

       pmdaroomtemp is a Performance Metrics Domain Agent (PMDA) which
       exports the temperature from one or more sensors built using the
       DS2480 and DS1280 chipsets and MicroLAN technology from Dallas
       Semiconductor Corporation.

       The roomtemp PMDA exports metrics that reflect the temperatures from
       one or more of these devices, in both degrees Celcius and Fahrenheit.
       Each metric has one instance for each temperature sensor device.  The
       external instance identifiers are the serial numbers (in hex) of the
       DS1280 chips discovered when the MicroLAN was probed.

       A brief description of the pmdaroomtemp command line options follows:

       -d   It is absolutely crucial that the performance metrics domain
            number specified here is unique and consistent.  That is, domain
            should be different for every PMDA on the one host, and the same
            domain number should be used for the same PMDA on all hosts.

       -l   Location of the log file.  By default, a log file named
            roomtemp.log is written in the current directory of pmcd(1) when
            pmdaroomtemp 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

       If you want access to the names, help text and values for the
       roomtemp performance metrics, do the following as root:

            # cd $PCP_PMDAS_DIR/roomtemp
            # ./Install

       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/roomtemp
            # ./Remove

       pmdaroomtemp 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 pmdaroomtemp
                 default help text file for the roomtemp metrics
                 installation script for the pmdaroomtemp agent
                 undo installation script for the pmdaroomtemp agent
                 default log file for error messages and other information
                 from pmdaroomtemp


       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).

SEE ALSO         top

       PCPIntro(1), pmcd(1), pcp.conf(5) and pcp.env(5).

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
       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                     PMDAROOMTEMP(1)