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@ -2,7 +2,6 @@
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
<!ENTITY howto "http://tldp.org/HOWTO/">
<!ENTITY mini-howto "http://tldp.org/HOWTO/mini/">
<!ENTITY genindex SYSTEM "genindex.sgm">
<!ENTITY index SYSTEM "index.sgml">
@ -30,7 +29,7 @@
<author>
<firstname> Wade W.</firstname> <!-- space for better rendering with Lynx -->
<firstname> Wade</firstname> <!-- space for better rendering with Lynx -->
<surname>Hampton</surname>
<affiliation>
@ -57,7 +56,7 @@
<legalnotice>
<para>
Copyright &copy; 1999-2007 by Werner Heuser. This document may be
Copyright &copy; 1999-2009 by Werner Heuser. This document may be
distributed under the terms set forth in the LDP license at
<ulink url="http://tldp.org/COPYRIGHT.html">COPYRIGHT</ulink>.
The information in this document is correct to the best of my knowledge, but
@ -71,11 +70,11 @@ contained herein. All trademarks belong to their owners.
</legalnotice>
<copyright>
<year>1999-2007</year>
<year>1999-2009</year>
<holder>Werner Heuser</holder>
</copyright>
<pubdate>0.19, 2007-06-22</pubdate>
<pubdate>0.20, 2009-09-28</pubdate>
<abstract>
@ -239,7 +238,7 @@ which also has made many contributions to this document itself.
</para>
<para>
Since Wade W. Hampton provided a great amount of information included into this text I consider him as a co-author. Though all responsibility for any mistakes is taken by me.
Since Wade Hampton provided a great amount of information included into this text I consider him as a co-author. Though all responsibility for any mistakes is taken by me.
</para>
@ -360,8 +359,9 @@ easy to install through packages.
<itemizedlist>
<listitem>
<para>
Fedora Core packages can be found on
<ulink url="http://mhensler.de/swsusp/">http://mhensler.de/swsusp/</ulink>.
Here are
<ulink url="http://mhensler.de/swsusp/">Fedora Core packages</ulink>
for download.
</para>
</listitem>
@ -392,8 +392,8 @@ easy to install through packages.
<title>Linux Compatibility Check</title>
<para>
>From the
<ulink url="http://tldp.org/HOWTO/Battery-Powered/index.html">Battery-Powered-mini-HOWTO</ulink>
From the
<ulink url="http://tldp.org/HOWTO/Battery-Powered/index.html">Battery Powered Linux Mini-HOWTO</ulink>
&quot; .. for APM to work on any notebook or energy-conscious desktop, the system BIOS ROM in the machine must support the APM standard. Furthermore, for APM to work with the Linux operating system, the system BIOS ROM must support either the 1.0 or 1.1 version of the APM standard, and it must also support 32-bit protected mode connections. A system that supports APM 1.1 is preferred, as it provides more features that the device driver and supporting utilities can take advantage of.&quot;
You may get information about the APM version with the <command>dmesg</command> command and in the <filename>/proc/apm</filename> file.
</para>
@ -506,7 +506,7 @@ Sometimes X windows and APM don't work smoothly together, the machine might even
</para>
<para>
On some new machines (for instance HP Omnibook 4150 - 366 MHz model) when accessing <filename>/proc/apm</filename>, you may get a kernel fault <command>general protection fault: f000</command>. Stephen Rothwell &lt;Stephen.Rothwell at canb.auug.org.au&gt; <ulink url="http://www.canb.auug.org.au/~sfr/">http://www.canb.auug.org.au/~sfr/</ulink> explains: "This is your APM BIOS attempting to use a real mode segment while in protected mode, i.e. it is a bug in your BIOS. .. We have seen a few of these recently, except all the others are in the power off code in the BIOS wher we can work around it by returning to real mode before attempting to power off. Here we cannot do this."
On some new machines (for instance HP Omnibook 4150 - 366 MHz model) when accessing <filename>/proc/apm</filename>, you may get a kernel fault <command>general protection fault: f000</command>. <ulink url="http://www.canb.auug.org.au/~sfr/">Stephen Rothwell</ulink> explains: "This is your APM BIOS attempting to use a real mode segment while in protected mode, i.e. it is a bug in your BIOS. .. We have seen a few of these recently, except all the others are in the power off code in the BIOS wher we can work around it by returning to real mode before attempting to power off. Here we cannot do this."
</para>
</sect3>
@ -577,7 +577,7 @@ to your settings.
</sect2>
<sect2 id="ecology-howto-pm-resources">
<title>Useful resources for power management</title>
<title>Useful Resources for Power Management</title>
<para>
@ -585,7 +585,7 @@ to your settings.
<listitem>
<para>
<ulink url="ftp://tsx-11.mit.edu/pub/linux/sources/sbin/hdparm-3.0.tar.gz">hdparm</ulink>
<ulink url="http://hdparm.sourceforge.net/">hdparm</ulink>
- <command>hdparm</command> is a Linux IDE disk utility that lets you set
spin-down timeouts and other disk parameters. It works also for some SCSI features.
</para>
@ -611,7 +611,8 @@ because of the risk to loose data in a crash or sudden power off.
<listitem>
<para>
<ulink url="http://muru.com/linux/dyntick/">Dynamic Tick</ulink>
- When enabled, this kernel feature allows to disable the
is available since kernel 2.6.21 and later.
When enabled, this kernel feature allows to disable the
CPU timer interrupts when all processors are idle.
This way, idle systems are not woken up every 4 ms
(default setting in Linux 2.6) just to realize there is nothing to do!
@ -622,24 +623,29 @@ really happens, when a real hardware interrupt is received.
In kernel configuration, this feature can be selected
from the <command>Kernel Features</command>
section (<command>NO_IDLE_HZ</command> setting).
You can verify whether it is enabled with
<command>cat /boot/config-$(uname -r) | grep CONFIG_NO_HZ</command>.
</para>
</listitem>
<listitem>
<para>
<ulink url="http://www.complang.tuwien.ac.at/ulrich/linux/tips.html">Mobile Update Daemon</ulink>
- This is a drop-in replacement for the standard <command>update</command> daemon, <command>mobile-update</command> minimizes disk spin ups and reduces disk uptime. It flushes buffers only when other disk activity is present. To ensure a consistent file system call <command>sync</command> manually. Otherwise files may be lost on power failure. <command>mobile-update</command> does not use APM. So it works also on older systems.
is a drop-in replacement for the standard <command>update</command> daemon, <command>mobile-update</command> minimizes disk spin ups and reduces disk uptime. It flushes buffers only when other disk activity is present. To ensure a consistent file system call <command>sync</command> manually. Otherwise files may be lost on power failure. <command>mobile-update</command> does not use APM. So it works also on older systems.
</para>
</listitem>
<listitem>
<para>
<command>noatime</command> mount option
- In operating systems like Linux which comply with the POSIX standard,
The <command>noatime</command> and <command>nodiratime</command>
mount options can be used to reduce disk writings.
In operating systems like Linux which comply with the POSIX standard,
filesystems are supposed to record the last time files are read.
With default kernel settings, even if files are read from the file
cache in RAM, this causes time data to be written to disk every
5 seconds.
5 seconds. You may use a line like this
<command>/dev/hda3 /data ext3 defaults,noatime,nodiratime, 1 2</command> for example
in <filename>/etc/fstab</filename>.
</para>
<para>
@ -666,17 +672,15 @@ is useful.
<para>
<ulink url="http://lcdproc.omnipotent.net/">LCDproc</ulink>
- "LCDproc is a small piece of software that will enable your Linux box
to display live system information on a 20x4 line backlit LCD display.
AFAIK it connects only to the external Matrix-Orbital 20x4 LCD display
<ulink url="http://www.matrixorbital.com/">MatrixOrbital</ulink>,
which is a LCD display connected to a serial port.
to display live system information on a LCD display. It
supports a lot of serial and parallel LCDs.
</para>
</listitem>
<listitem>
<para>
<ulink url="http://www.loonie.net/~eschenk/diald.html">Dial Daemon</ulink>
<ulink url="http://sourceforge.net/projects/diald/">Dial Daemon</ulink>
- The Diald daemon provides on demand Internet connectivity using the SLIP or PPP protocols. Diald can automatically dial in to a remote host when needed or bring down dial-up connections that are inactive.
</para>
</listitem>
@ -685,7 +689,7 @@ which is a LCD display connected to a serial port.
<para>
Getting your computer to use the least amount of power can be problematic.
Intel's
<ulink url="http://www.linuxpowertop.org/index.php"></ulink> project provides information on reducing power usage, tips, and tricks for Intel-based computers running Linux.
<ulink url="http://www.linuxpowertop.org/"></ulink> project provides information on reducing power usage, tips, and tricks for Intel-based computers running Linux.
As a first step, Intel has released PowerTOP, a tool that helps you find what
software is using the most power. By fixing (or closing) these applications or
processes, you can immediately see the power savings in the tool. You'll also
@ -724,6 +728,8 @@ command in the <command>Bookmarks</command> menu.
This is very convenient to restore a set of tabs
or just to start your browser with all your favorite information
sites when you arrive in the morning.
Firefox v3 can save the current state of the browser and will
restore it upon powerup.
</para>
<para>
@ -817,7 +823,7 @@ Do they only prevent the screen from being burned in or do they save power, too?
</para>
<para>
Some recommendations from Wade W. Hampton:
Some recommendations from Wade Hampton:
Screensavers usually display graphics, look for ETI, or perform other tasks. When using your screensaver in this manner, you may actually consume MORE power. For example a computer using XSETI as a screensaver might get far warmer (hence use more power) than when it was being used to edit a document or perform a compile.
</para>
@ -915,7 +921,7 @@ AFAIK a CRT consumes on the order of 25 percent more power when displaying a <co
</sect1>
<sect1 id="ecology-howto-virtualservers">
<title>Virtual Servers</title>
<title>Virtual Servers: Consolidation and Virtualization</title>
<para>
On enterprise networks, or on the Internet, security constraints may require
@ -1123,13 +1129,13 @@ Most of the noise emitted by a computer is produced by the fan, the harddisk and
<listitem>
<para>
<command>lm-sensors</command> "Kernel drivers to read
<ulink url="http://www.lm-sensors.nu/">lm-sensors</ulink>:
"Kernel drivers to read
temperature/voltage/fan sensors. This is a module for reading the
temperature/voltage/fan sensors in Linux via the LM78/79 chip and
possibly sensors on the SMBus (System Management Bus, usually found in
P6 and P-II systems). The LM80 and a LM78-clone called W83781D are
also supported."
<ulink url="http://www.lm-sensors.nu/">http://www.lm-sensors.nu/</ulink>
</para>
</listitem>
@ -1341,8 +1347,7 @@ What are the reasons why people don't read from the monitor:
<listitem>
<para>
Reading is slower up to 30 percent, see <ulink url="http://www.useit.com/alertbox/9602.html">N.N.</ulink>. The speed can be improved by better hardware (e.g. TFT display, greater screen, though this is against the other below to take smaller CRTs) and better display software (type-1, t1lib, truetype, freetype).
Reading is slower up to 30 percent, see <ulink url="http://www.useit.com/alertbox/9602.html">Jakob Nielsen: In Defense of Print</ulink>. The speed can be improved by better hardware (e.g. TFT display, greater screen, though this is against the other below to take smaller CRTs) and better display software and fonts (type-1, t1lib, truetype, freetype).
</para>
</listitem>
@ -1420,7 +1425,7 @@ Laser printer cartridges can often be used much more longer if you shake them wh
<listitem>
<para>
LaTeX documents:
Using \usepackage{ccfonts} replaces the usual fonts by ones with wider lines and bolder serifes, improving readability at low resolutions. They are darker (i.e. use more ink) than the CM fonts and not as beautiful, so I would not recommend them for normal-size printings.
Using <command>\usepackage{ccfonts}</command> replaces the usual fonts by ones with wider lines and bolder serifes, improving readability at low resolutions. They are darker (i.e. use more ink) than the CM fonts and not as beautiful, so I would not recommend them for normal-size printings.
</para>
</listitem>
@ -1428,7 +1433,13 @@ Using \usepackage{ccfonts} replaces the usual fonts by ones with wider lines and
<listitem>
<para>
Size-Reduction:
Instead of <command>psnup</command> or other parts of the <command>pstools</command> I recommend the <command>psnup</command> written in Perl4 by Malcolm Herbert (it's from 1994, and no longer maintained but however there is a descendant of it called <command>yup</command>, available at <ulink url="http://redback.spyda.net/~mjch/yup/">yup</ulink>).
Instead of <command>psnup</command> or other parts of the <command>pstools</command> check for enhanced Perl rewritings of <command>psnup</command>.
<!--
written in Perl4 by Malcolm Herbert (it's from 1994, and no longer maintained but however there is a descendant of it called <command>yup</command>, available at <ulink url="http://redback.spyda.net/~mjch/yup/">yup</ulink>).
http://www-hermes.desy.de/notes/extras/postscript.html
http://consodoc.com/psnup2/
-->
</para>
<para>
@ -1474,7 +1485,7 @@ The normally used options are:
<listitem>
<para>
<ulink url="http://www.warwick.ac.uk/go/pdfjam">PDFjam</ulink>
<ulink url="http://go.warwick.ac.uk/pdfjam">PDFjam</ulink>
is a small collection of shell scripts that provide a
simple interface to some of the functionality of the pdfpages package for
pdfLaTeX. At present, the utilities available are pdfnup, pdfjoin, and
@ -1573,6 +1584,23 @@ does a simplistic layout of non-cropped original pages.
</listitem>
<listitem>
<para>
<ulink url="http://g-manual-duplex.sourceforge.net/">gnome-manual-duplex</ulink>
is a utility that adds manual duplex to the "Print" menu.
</para>
</listitem>
<listitem>
<para>
<ulink url="http://www.ecofont.eu/">ecofont</ulink>
is an open source sans serif font with holes added to save printer ink.
</para>
</listitem>
<listitem>
<para>
If you need to print a lot of Web pages from inside your FireFox webbrowser, the
@ -1591,7 +1619,7 @@ does a simplistic layout of non-cropped original pages.
</para>
<para>
Wade W. Hampton provided the biggest part of this chapter. Some suggestions are from Ralf Muschall.
Wade Hampton provided the biggest part of this chapter. Some suggestions are from Ralf Muschall.
</para>
</sect1>
@ -1780,7 +1808,7 @@ seems obsolete
<para>
<ulink url="http://www.pingoo.org/Router/">The PingOO ISDN Router</ulink> is a Linux distribution based on Debian which is designed to transform an old and useless computer like a 486/DX with 8MB RAM and 100 MB HD into a very reliable ISDN router. It features bandwith on demand (1 or 2 ISDN channels), dialin for maintenance, IP filters with ipchains, LZS compression, and LAN2LAN or single host + masquerade connection. PingOO ISDN-router uses the same philosophy as PingOO Communication Server.
<ulink url="http://www.pingoo.org/">The PingOO ISDN Router</ulink> is a Linux distribution based on Debian which is designed to transform an old and useless computer like a 486/DX with 8MB RAM and 100 MB HD into a very reliable ISDN router. It features bandwith on demand (1 or 2 ISDN channels), dialin for maintenance, IP filters with ipchains, LZS compression, and LAN2LAN or single host + masquerade connection. PingOO ISDN-router uses the same philosophy as PingOO Communication Server.
</para>
</sect3>
@ -1874,7 +1902,7 @@ Built upon uClibc and Busybox.
<listitem>
<para>
<ulink url="http://www.mepis.com/node/90">MEPISLite</ulink>
<ulink url="http://www.mepis.org/">MEPISLite</ulink>
- Debian based distribution targeting PCs that used to run Windows 98
(typically 128 MB of RAM, 2 GB of disk space and a 500 MHZ CPU).
</para>
@ -1894,7 +1922,7 @@ Using Gentoo on Old Machines
Most modern distros will be very sluggish when run on those machines; not
because they use new software, but because they expect to be run on new
machines and may automatically install large amounts of software. The thrust
of <ulink url="http://gentoo-wiki.com/HARDWARE_old">Gentoo-on-old-hardware</ulink>
of <ulink url="http://web.archive.org/web/*/http://gentoo-wiki.com/HARDWARE_old">Gentoo-on-old-hardware</ulink>
is to obtain a light, minimalist system that runs
what you need it to and no more; unlike many proprietary OSes and the
"heavier" distros such as Fedora, Gentoo starts very light by default."
@ -2015,8 +2043,8 @@ command calls, saving space. Applications (and not the operating system) are
responsible for creating or handling such files in a correct way.
For example, both the <command>tar</command> and <command>cp</command>
commands have options for handling sparse files in a correct way.
See the <ulink url="http://www.lrdev.com/lr/unix/sparsefile.html">http://www.lrdev.com/lr/unix/sparsefile.html</ulink>
page for more details and for a <command>sparse</command> command
See the <ulink url="http://www.lrdev.com/lr/unix/sparsefile.html">this page</ulink>
for more details and for a <command>sparse</command> command
to create such files. In Debian, you can also use the <command>zum</command> command
from the <ulink url="http://packages.debian.org/stable/utils/perforate"><command>perforate</command></ulink> package.
</para>
@ -2105,14 +2133,11 @@ Compressed read-write filesystems:
<para>
- Fortunately, a very serious solution exists in the
<ulink url="http://www.namesys.com/v4/v4.html">Reiser4 filesystem</ulink>
<ulink url="http://en.wikipedia.org/wiki/Comparison_of_file_systems">Reiser4 filesystem</ulink>
which includes a compression plugin. Using compression is even reported
to be faster than not using it. Actual results should of course
vary with the CPU and disk speed, and results might be disappointing on
old machines. See
<ulink url="http://namesys.com/install_v4.html">how to use Reiser4</ulink>.
This filesystem is supported on all recent kernel versions,
and merging with mainstream is their top priority.
old machines.
</para>
</listitem>
@ -2425,8 +2450,8 @@ tiny."
<listitem>
<para>
<ulink url="http://tinyproxy.sourceforge.net/">tinyproxy</ulink>
- "Tinyproxy is a lightweight HTTP proxy
<ulink url="https://www.banu.com/tinyproxy/">tinyproxy</ulink>
- "is a lightweight HTTP proxy
designed to do the job with a minimum of system resource use.
It's ideal for small networks where a larger HTTP proxy such
as squid might be overkill or a security risk. This simplicity
@ -2499,7 +2524,7 @@ Some remarks about backlights in laptops, monitors (screensavers), harddisks (hd
<para>
<ulink url="http://www-128.ibm.com/developerworks/linux/library/l-lwl1/">Lightweight Linux, Part 1</ulink>:
<ulink url="http://web.archive.org/web/*/http://www-128.ibm.com/developerworks/linux/library/l-lwl1/">Lightweight Linux, Part 1</ulink>:
Hardware is only as old as the software it runs: a modern operating system and
up-to-date applications return an older system to productivity. This article
provides best practices and step-by-step guidance on how to build a working
@ -2513,7 +2538,7 @@ Some remarks about backlights in laptops, monitors (screensavers), harddisks (hd
<para>
Purging of uneeded Locales:
<ulink url="http://packages.debian.org/stable/admin/localepurge"><command>localepurge</command></ulink>
for Debian is just a simple script to recover disk space wasted for unneeded
for Debian/GNU Linux is just a simple script to recover disk space wasted for unneeded
locale files and localized man pages. Depending on your installation, it
is possible to save some 20, 30, or even more megabytes of disk space
usually dedicated for locales you'll probably never have any usage for.
@ -2536,6 +2561,7 @@ Some remarks about backlights in laptops, monitors (screensavers), harddisks (hd
<ulink url="http://repair4printer.org/">repair printers, ink and toner cartridges</ulink>,
<ulink url="http://repair4harddisk.org/">repair hard disk drives</ulink>,
<ulink url="http://repair4keyboard.org/">repair and clean computer keyboards</ulink> and
<ulink url="http://repair4gps.org/">repair and mod GPS navigation devices</ulink> and
<ulink url="http://repair4pc.org/">repair personal computers - PCs</ulink>.
</para>
@ -2568,6 +2594,9 @@ The lower power consumption of older computers means you get more reserve time f
<para>
As mentioned in the previous chapter, Linux can be run on non-PC architectures.
This is particularly useful for the small applications old PCs can be used for.
Recent netbooks either ARM-based or MIPS-based provide an even smaller power
footprint. Check <ulink url="http://moblin.org/">moblin</ulink> Linux, which is dedicated to
such machines.
</para>
<sect1 id="ecology-howto-ce-devices">
@ -2842,25 +2871,22 @@ particularly greenhouse effect.
<listitem>
<para>
Balance of the Planet, 1991, Chris Crawford (DOS,
Mac) You take the role of a government policy-maker
Balance of the Planet, 1991, Chris Crawford (DOS, Mac):
You take the role of a government policy-maker
who must try to balance industry and ecology.
Remarkably complicated and drab (even moreso than
SimEarth), but certain to be educational and
thought-provoking if time is spent with the manual.
(The Mac version can now be downloaded for free from
Crawford's website
http://www.erasmatazz.com/free.html, but Executor
seems to be unable to deal the filenames in the
archive.)
The Mac version can now be downloaded for free from
<ulink url="http://www.erasmatazz.com/free.html">Crawford's website</ulink>.
</para>
</listitem>
<listitem>
<para>
Global Effect, 1992, Millennium (DOS, Amiga) An
early real-time strategy game where you must try
Global Effect, 1992, Millennium (DOS, Amiga):
An early real-time strategy game where you must try
to conquer your opponent while dealing with the
ecological ramifications of your weapons and
industry upon your population. Clunky interface,
@ -2910,7 +2936,9 @@ Though I know there is some MS-Windows based software which is used in ecologica
<para>
Ecolab is both the name of a software package and a research project that is looking at the dynamics of evolution. <ulink url="http://parallel.acsu.unsw.edu.au/rks/ecolab.html">http://parallel.acsu.unsw.edu.au/rks/ecolab.html</ulink> EcoLab is a system that implements an abstract ecology model. It is written as a set of Tcl/Tk commands so that the model parameters can easily be changed on the fly by means of editing a script. The model itself is written in C++.
<ulink url="http://ecolab.sourceforge.net/">Ecolab</ulink>
is both the name of a software package and a research project that is
looking at the dynamics of evolution. EcoLab is a system that implements an abstract ecology model. It is written as a set of Tcl/Tk commands so that the model parameters can easily be changed on the fly by means of editing a script. The model itself is written in C++.
</para>
</sect1>
@ -2921,11 +2949,12 @@ Ecolab is both the name of a software package and a research project that is loo
<para>
<ulink url="http://www.nis.atr.jp/~ray/tierra/">Tierra</ulink>
<!--
<ulink url="http://www.hip.atr.co.jp/~ray/tierra/tierra.html">Tierra</ulink>
<ulink url="http://www.nis.atr.jp/~ray/tierra/">Tierra</ulink>
-->
is a tool for studying digital evolution and ecology that runs on Linux and other OSes.
<ulink url="http://life.ou.edu/tierra/">Tierra</ulink>
by Tom Ray is a tool for studying digital evolution and ecology that runs on Linux and other OSes.
</para>
</sect1>
@ -2935,7 +2964,7 @@ is a tool for studying digital evolution and ecology that runs on Linux and othe
<para>
Courtesy of Wade W. Hampton: Linux is ideally suited for use as a research tool for environmental experiments. There are small embedded Linux solutions that can be used for remote monitoring or telemetry. There are VERY small Linux implementations from PC-104 systems to embedded systems like the <ulink url="http://www.uclinux.com">uCsimm</ulink>. Linux even flew on the shuttle controlling biological experiments.... Linux has been used for weather research on NOAA's Hurricane Hunter aircraft.
Courtesy of Wade Hampton: Linux is ideally suited for use as a research tool for environmental experiments. There are small embedded Linux solutions that can be used for remote monitoring or telemetry. There are VERY small Linux implementations from PC-104 systems to embedded systems like the <ulink url="http://www.uclinux.com">uCsimm</ulink>. Linux even flew on the shuttle controlling biological experiments.... Linux has been used for weather research on NOAA's Hurricane Hunter aircraft.
</para>
<para>
@ -2983,7 +3012,7 @@ University of Bern</ulink> in Switzerland.
<para>
<ulink url="http://uncert.mines.edu/">UNCERT</ulink> is a geostatistical uncertainty analysis package applied to groundwater flow and contaminant transport modeling. This package was developed for evaluating the inherent uncertainty in describing subsurface geology, hydraulic properties, and the migration of hazardous contaminants in groundwater flow systems. It is well suited for the aforementioned purposes, but is also sufficiently general to be usable by researchers in a wide range of disciples.
<ulink url="http://www.uncert.com/">UNCERT</ulink> is a geostatistical uncertainty analysis package applied to groundwater flow and contaminant transport modeling. This package was developed for evaluating the inherent uncertainty in describing subsurface geology, hydraulic properties, and the migration of hazardous contaminants in groundwater flow systems. It is well suited for the aforementioned purposes, but is also sufficiently general to be usable by researchers in a wide range of disciples.
</para>
</sect1>
@ -3147,6 +3176,93 @@ reducing the open source operating system's power consumption..."
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.ibm.com/developerworks/linux/library/l-green-linux/index.html">Linux: Lean, clean, and green - How GNU/Linux is becoming more eco-friendly</ulink>:
"Green IT is one of the hottest of today's technology trends, and the GNU/Linux community has risen to the challenge. Along with several corporate partners, the
GNU/Linux operating system provides solutions for dealing with power consumption, carbon emissions, and e-waste."
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www-128.ibm.com/developerworks/linux/library/l-linux-memory.html?ca=dgr-lnxw02LinuxMemory">Reduce your Linux memory footprint - A few tweaks can boost performance</ulink>:
"In this article, learn how to accurately measure the amount of memory your
Linux system uses. You also get practical advice on reducing your memory
requirements using an Ubuntu system as an example..."
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.ibm.com/developerworks/opensource/library/os-smart-monitors/index.html">Reduce Power Consumption Through Smart Activity Monitors</ulink>:
"Advanced Configuration and Power Interface (ACPI) and the power configuration systems
built into moderncomputers provide a wide range of options for reducingoverall power
consumption. Linux and its associateduser space programs have many of the tools necessary
tomaster your PC power consumption in a variety of contexts."
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.ibm.com/developerworks/linux/library/l-cpufreq-1/index.html">Reduce Linux power consumption, Part 1: The CPUfreq subsystem</ulink>
"This three-part series is your starting point for tuning your system for power efficiency. In Part 1, get up to speed on the components and concepts you need to fine-tune a Linux-based System x server for power efficiency. Learn how to enable the Linux CPUfreq subsystem, get instruction on C and P states, and determine which of the five in-kernel governors you need to boost power efficiency on your system."
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.ibm.com/developerworks/linux/library/l-recycle-hardware/">Three ways to recycle commodity hardware with Linux - Creating Linux appliances with spare parts</ulink>:
"Outdated computer hardware may be too old to rely on, but it represents a value to your organizationwhether in an office or at home. Discover how you can realize that value by repurposing older machines with Linux."
</para>
</listitem>
<listitem>
<para>
<ulink url="http://web.archive.org/web/*/http://www-128.ibm.com/developerworks/linux/library/l-lwl1/">Lightweight Linux, Part 1</ulink>:
Hardware is only as old as the software it runs: a modern operating system and
up-to-date applications return an older system to productivity. This article
provides best practices and step-by-step guidance on how to build a working
Linux system on older hardware or on modern hardware with limited memory and
storage.
<!--
Leverage older hardware and break the hardware/software upgrade cycle
-->
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.osor.eu/case_studies/airaware-managing-the-skies-of-bucharest-using-free-software"></ulink>:
"In 2005 the Romanian National Meteorological Administration (NMA) received EU funding for its AirAware project. The project's objective was to improve the air quality monitoring system currently in place and to enhance the system with forecasting capabilities. For the management of all the information and the presentation thereof, the team at the NMA developed a portal that is entirely built on Free/Libre Open Source Software. In the future, the team is hoping to open the project to the public."
</para>
</listitem>
<listitem>
<para>
The German <ulink url="http://www.prtr.bund.de/">PRTR - Pollutant Release and Transfer Register</ulink>
provides data about environmental pollution. The data are stored with Open Source
software and presented with OpenStreepMap.
</para>
</listitem>
<listitem>
<para>
Whitepaper: <ulink url="http://www.weed-online.org/publikationen/2353772.html">Buy IT fair - Leitfaden zur sozial-&ouml;kologischen Beschaffung von Computern</ulink>:
This German guide gives assistance for local governments when buying IT.
</para>
</listitem>
</itemizedlist>
</para>
@ -3214,7 +3330,7 @@ Jeandre &lt;jeandre at techie.com&gt;
<listitem>
<para>
Wade W. Hampton &lt;whampton at staffnet.com&gt;
Wade Hampton &lt;wadehamptoniv at gmail.com&gt;
</para>
</listitem>
@ -3251,7 +3367,7 @@ Volodymyr M. Lisivka &lt;vlisivka at gmail.com&gt;
<listitem>
<para>
Verena Lorenz-Meyer &lt;lome at cs.tu-berlin.de&gt;
Verena Lorenz-Meyer
</para>
</listitem>
@ -3545,6 +3661,14 @@ has been added.
</listitem>
<listitem>
<para>
0.20, 28 September 2009,
All URLs have been checked, and many minor enhancements have been made.
</para>
</listitem>
</itemizedlist>
</para>
</chapter>
@ -3558,9 +3682,9 @@ has been added.
<para>
Scientists of
<ulink url="http://www.reuse-computer.de">ReUse project</ulink>
<ulink url="http://www.reuse-computer.de/">ReUse project</ulink>
located at the
<ulink url="http://tu-berlin.de/">Technical University of Berlin</ulink> recently compared the
<ulink url="http://www.tu-berlin.de/">Technical University of Berlin</ulink> recently compared the
energy consumption of different computer types along the life cycle. The
production of computers actually needs 535 kWh which is 10 % less than 4
years ago. Most of the energy will be consumed while the computer is used
@ -3789,7 +3913,7 @@ Though both programs are DOS based, I mention them here. I hadn't time to look f
</para>
<para>
<ulink url="http://www.cajun.nu/">Cajun</ulink> is a program that allows you to turn any computer (&gt;75mhz) into a massive audio jukebox for your car or home. It uses the
<ulink url="http://cajun.sourceforge.net/">Cajun</ulink> is a program that allows you to turn any computer (&gt;75mhz) into a massive audio jukebox for your car or home. It uses the
<ulink url="http://www.matrixorbital.com/">MatrixOrbital</ulink>
serial display and supports the IRman infra-red remote control interface. Soundcard output is delivered to your (car or home) stereo for amplification. The software supports a hotlist and shuffle mode. It includes FM/Video4Linux support, icecast/shoutcast support, CrystalFontz serial display support, and choice of mpg123 or xaudio for driving the sound card.
</para>
@ -3856,7 +3980,7 @@ Andreas Grote: (be): Gruene Rechnung - Das Produkt Computer in der Oekobilanz -
<para>
Courtesy of Wade W. Hampton (modifications by wh): Purchase a low-power computer such as a laptop or network computer. These typically don't use as much power as desktop systems. For example, someone on the WWW had a Corel/Rebel Netwinder powered by solar cells. I find it funny that an "Energy Star" desktop still has a 300W power supply and uses far more power than a computer like the Netwinder which uses something like 10 Watts of power, (though this is consistent with the Energy Star goals for computer equipment, since they have targeted unused power consumption).
Courtesy of Wade Hampton (modifications by wh): Purchase a low-power computer such as a laptop or network computer. These typically don't use as much power as desktop systems. For example, someone on the WWW had a Corel/Rebel Netwinder powered by solar cells. I find it funny that an "Energy Star" desktop still has a 300W power supply and uses far more power than a computer like the Netwinder which uses something like 10 Watts of power, (though this is consistent with the Energy Star goals for computer equipment, since they have targeted unused power consumption).
</para>
<para>
@ -3898,7 +4022,13 @@ The big debate in setting the energy star regulations was deciding which would h
<para>
Courtesy of Wade W. Hampton and Knut Suebert: New hardware designs that plan to use Linux should take advantage of environmentally friendly technologies such as low-power CPUs e.g., the ARM from: <ulink url="http://developer.intel.com/design/strong/">Intel</ulink>, environmentally friendly battery design, low-power displays (e.g., non-backlit LCDs), smaller packaging, etc. Linux supports a WIDE variety of hardware and technologies. These could be leveraged into powerful, flexible, environmentally friendly Linux-based solutions.
Courtesy of Wade Hampton and Knut Suebert: New hardware designs that plan
to use Linux should take advantage of environmentally friendly technologies
such as low-power CPUs e.g., the ARM from Intel:
<!--
<ulink url="http://developer.intel.com/design/strong/">Intel</ulink>
-->
, environmentally friendly battery design, low-power displays (e.g., non-backlit LCDs), smaller packaging, etc. Linux supports a WIDE variety of hardware and technologies. These could be leveraged into powerful, flexible, environmentally friendly Linux-based solutions.
</para>
<para>
@ -3933,7 +4063,7 @@ Currently I have only this small list: TCO, DPMS or Energy Star <ulink url="http
<listitem>
<para><ulink url="http://www.blauer-engel.de/englisch/navigation/body_blauer_engel.htm">Blauer-Engel.de</ulink></para>
<para><ulink url="http://www.blauer-engel.de/">Blauer-Engel.de</ulink></para>
</listitem>
@ -4123,6 +4253,12 @@ or recycling of waste.
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assessment,
conservation, development, disposal,
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