06-03-2011
Since you have no swap, it is all from mmap()'d pages like libraries but can be any file with any app using mmap()/mmap64(). Page faults are not toxic, sometimes you can find an app that stirs things up unnecessarily and get rid of it, else buy more RAM.
You can make swap after the fact, by creating a big file and assigning it as swap. I would expect it is good for system stability to have some, if not lots. Some like to buy SSD for swap, but I am not sure as it is not churn friendly.
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LEARN ABOUT DEBIAN
swap-offset
SWAP-OFFSET(8) swap-offset SWAP-OFFSET(8)
NAME
swap-offset - program to calculate the offset of a swap file in a partition
SYNOPSIS
swap-offset [<swap_file>]
DESCRIPTION
This manual page documents briefly the swap-offset.
This manual page was written for the Debian(TM) distribution because the original program does not have a manual page.
The programs s2disk and s2both can be used to save the state of the whole system to a swap partition or file and power off or suspend your
system. After restarting your system it will be put back in the exact system state you left it (this is sometimes called hibernation).
In the case of using a swap file you will have to specify the location of the swap file's header as the offset from the beginning of the
partition that contains the swap file. The swap-offset utility can be used to determine this value.
SEE ALSO
uswsusp.conf(8), s2disk(8)
For more information see the HOWTO and the README
AUTHOR
This manual page was written by Tim Dijkstra tim@famdijkstra.org for the Debian(TM) system (but may be used by others). Permission is
granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version
published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
AUTHOR
TimTim DijkstraDijkstra <tim@famdijkstra.org> <tim@famdijkstra.org>
Wrote this manpage for the Debian system.
COPYRIGHT
Copyright (C) 2006 Tim Dijkstra
uswsusp juni 24, 2006 SWAP-OFFSET(8)