Usage: procmem [ -w | -W ] [ -p | -m ] [ -h ] pid
    -w  Displays statistics for the working set only.
    -W  Resets the working set of the process.
    -p  Sort by PSS.
    -m  Sort by mapping order (as read from /proc).
    -h  Hide maps with no RSS.

Usage: procrank [ -W ] [ -v | -r | -p | -u | -s | -h ]
    -v  Sort by VSS.
    -r  Sort by RSS.
    -p  Sort by PSS.
    -u  Sort by USS.
    -s  Sort by swap.
        (Default sort order is PSS.)
    -R  Reverse sort order (default is descending).
    -c  Only show cached (storage backed) pages
    -C  Only show non-cached (ram/swap backed) pages
    -k  Only show pages collapsed by KSM
    -w  Display statistics for working set only.
    -W  Reset working set of all processes.
    -h  Display this help screen.