NAME
    check_vm_swap - A Nagios plugin to check swap in/out operations

    activities

SYNOPSIS
    check_vm_swap --warning w --critical c [-v]

DESCRIPTION
    check_vm_swap checks swap activities. it does NOT check total amount of
    available swap storage. As long as kernel has enough swap space,
    swapping is not a problem. Mordern kernel rarely swap process. Even if
    it does, it's OK if the swapped process is idling. However, many
    swapping activity is almost always a problem. check_swap from Nagios
    plugins just checks how much swap space is available and screams when
    swap is used. If swapped process has been idle for a while and other
    processes need memory, it's okay. That's what kernel is supposed to do.
    I needed a plugin to check how often kernel swap-in/out process.

    by default, it monitors how often kernel swaps in/out. paging in/out is
    also supported.

  OPTIONS
    --warning, -w, --critical, -c
        per-five-minutes thresholds for swap operation.

    --type TYPE
        What VM activity to monitor, "swap" or "page", default is swap.

    --statedir /path/to/directoy
        Where state file is written (/var/spool/nagios/plugins). The user
        needs write perimission.

SEE ALSO
    check_swap, if you really want to monitor how much swap space left.

AUTHOR
    Tomoyuki Sakurai <[email protected]>

LICENSE
    Copyright (c) 2012 Tomoyuki Sakurai <[email protected]>

    Permission to use, copy, modify, and distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.