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       The shared memory column should be ignored; it is obsolete.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