Free ram software for linux

DBD::RAM is a DBI driver for files and data structures.

SYNOPSIS

use DBI;
my $dbh = DBI->connect(DBI:RAM:,usr,pwd,{RaiseError=>1});
$dbh->func({
table_name => my_phrases,
col_names => id,phrase,
data_type => PIPE,
data_source => [ ],
}, import );
print $dbh->selectcol_arrayref(qq[
SELECT phrase FROM my_phrases WHERE id = 1
])->[0];
__END__
1 | Hello, New World
2 | Some other Phrase

This sample creates a database table from data, uses SQL to make a selection from the database and prints out the results. While this table is in-memory only and uses pipe "delimited" formating, many other options are available including local and remote file access and many different data formats.

DBD::RAM allows you to import almost any type of Perl data structure into an in-memory table and then use DBI and SQL to access and modify it. It also allows direct access to almost any kind of file, supporting SQL manipulation of the file without converting the file out of its native format.

The module allows you to prototype a database without having an rdbms system or other database engine and can operate either with or without creating or reading disk files. If you do use disk files, they may, in most cases, either be local files or any remote file accessible via HTTP or FTP.

Booting Ubuntu To RAM is an article aims to document the process of creating a customized Ubuntu that loads an image from the hard disk to RAM, then boots an entire Ubuntu session out of RAM. It is intended for intermediate to advanced Ubuntu users who are familiar with the shell, and may have limited experience customizing the livecd (LiveCDCustomization) and shell scripting. We will customize a LiveCD and copy it to the hard drive, and make a few modifications to bootup scripts so that it copies to RAM via our good friend tmpfs.
WARNING: The author asserts that this procedure works for him, but cannot guarantee that this procedure works for anyone else. Although this procedure is meant to be 100% safe, it is feasible that there may be mistakes, or a chance of misunderstanding the instructions in a manner that causes loss of data. Please make a backup and do not attempt on mission critical systems. Read through this article thoroughly, and do not attempt if you do not comprehend or feel comfortable about any of the instructions!
CAUTION: I hope this is intuitively obvious, but Ill humor you and state it bluntly: Changes you make under the live session are NOT saved and WILL BE LOST when you reboot or shut down. Dont save anything important to the "home directory" and expect it to still be around! If you want to save data permanently, mount a permanent medium (such as your hard drive), plug in a thumbdrive, or use some network functionality built into Ubuntu to save your data to a non-volatile destination.
There are many cases where one would like to boot Ubuntu to RAM:
- Performance: The desktop performance is dramatically improved. A 400MB squashed filesystem in RAM, that holds 1200MB of data, is read back on a 1.6GHz Core Duo in about 3 seconds, including decompression time.
- Power, Noise, Durability: Although modern hard disks dont use much power compared to other system components, this may still be important for some. In laptops, hard disks are often the noisiest components, so this setup can reduce system noise. With the hard disk spun down, a laptop can potentially withstand greater shocks without damage.
- Abrupt poweroff: Since the hard disk is only momentarily used in read-only mode during boot, then never touched again, there are few or no negative consequences of an abrupt poweroff. If a system is used where power is inconsistent, or the system is regularly used in a context where fast shutoffs are required, this is very handy.
- Privacy: Anything you do in this session are lost when you reboot or power off. This is great for kiosks or other systems where permanent modification are not desired. (Note that by default the livecd user has full sudo access, so potentially a malicious user can still make permanent changes by mounting the hard drive and following this HOWTO)

MEPIS AntiX is a new, unofficial derivative of MEPIS Linux aimed at computers with as little as 128 MB or RAM. A development release, offering the choice of Fluxbox or IceWM as window managers.

hfishs monitor is based on this theme (http://www.kde-look.org/content/show.php?content=47852), I made some changes to best fit to my laptop.
Includes support for two cpus, two ethernet interfaces, ram, swap and two partitions, nvidia gpu temp.
Enhancements:
- Added nVidia GPU temp support

Thao_sys_meter is my first Karamba Theme. ... My base theme came from System Theme and Awesome Karamba Theme. Icons came from Crtstal Clear Theme. Thanks to all those autors.
I built it on my Debian etch and with SuperKaramba 0.38
Enhancements:
Added the following:
- CPU meter
- Network meter
- Disk usage meter
- Ram Meter
- Sysinfo

Minipup is a linux distribution useful for 128MB-RAM devices.

Use the base ISO for file management, media playing and browsing - uses the Opera browser/email/chat suite.

Note: To use this software in CD-ROM-less devices, burn the ISO to a CD and boot it in a regular PC. Start "Setup - Universal Installer" and install it either to "Compact Flash (CF) to be used as IDE" or to USB flash. Use the CF/USB flash to boot the device.

Bioknoppix is a customized distribution of Knoppix Linux Live CD. With this distrubution you just boot from the CD and you have a fully functional Linux OS distribution with open source applications targeted for the molecular biologist. Beside using some RAM, Bioknoppix doesnt touch the host computer, being ideal for demonstrations, molecular biology students, workshops, etc.