NAME

       pcp-free - report on free and used memory in the system

SYNOPSIS

       pcp [pcp options] free [-bkmgroltV?]  [-c count] [-s interval]

DESCRIPTION

       pcp-free  gives  a  summary  display of the total amount of free and used physical memory and swap in the
       system, as well as the caches used by the kernel.

       When  invoked  via  the  pcp(1)  command,  the  -h/--host,   -a/--archive,   -O/--origin,   -s/--samples,
       -t/--interval,  -Z/--timezone  and several other pcp options become indirectly available, see PCPIntro(1)
       for their descriptions.

OPTIONS

       The available command line options are:

       -b, --bytes
            Display the amount of memory in bytes.

       -c count, --samples=count
            Terminate the display after count iterations.  See also -s.

       -g, --gigabytes
            Display the amount of memory in gigabytes.

       -k, --kilobytes
            Display the amount of memory in kilobytes.  This is the default.

       -l   Display detailed low and high memory statistics.

       -m, --megabytes
            Display the amount of memory in megabytes.

       -o   Disable the display of a "buffer adjusted" line.  If the -o option is not specified, free  subtracts
            buffer memory from the used memory and adds it to the free memory reported.

       -r, --terabytes
            Display the amount of memory in terabytes.

       -s delay, --interval=delay
            Activate  continuous  polling  delay  seconds  apart.  You may specify any floating point number for
            delay, or indeed any valid pmParseInterval(3) specification, which includes  microsecond  resolution
            delay times.  This can be used in conjunction with the -c option.

       -t, --total
            Display a line containing the totals.

       -V, --version
            Display version number and exit.

       -?, --help
            Display usage message and exit.

NOTES

       pcp-free is inspired by the free(1) command and aims to be command line and output compatible with it.

       The shared memory column should be ignored; it is obsolete.

PCP ENVIRONMENT

       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).

SEE ALSO

       PCPIntro(1), pcp(1), free(1), pmParseInterval(3) and environ(7).