pnp4nagios

monitoring addon to create graphs from performance data

PNP is a graphing tool for Nagios, Icinga or similar frameworks that analyzes performance data provided by plugins and stores them automatically into Round Robin Databases (RRD).

xracer-tools

Futuristic racing game - developer tools

Xracer is a Wipeout clone, distributed under the GPL. It should be able to use any OpenGL 1.1 compliant library. A 3D accelerator card is required.
X11 server resource usage monitor

xrestop

X11 server resource usage monitor

xrestop uses the X-Resource extension to provide top(1)-like statistics for each connected X11 client's server-side resource usage. It is intended as a developer tool to aid more efficient server resource usage and debug server-side resource leakage.
JACK and ALSA Perceptual Analyser

japa

JACK and ALSA Perceptual Analyser

Japa, is a 'perceptual' or 'psychoacoustic' audio spectrum analyser. Possible uses include spectrum monitoring while mixing or mastering, evaluation of ambient noise, and (using pink noise) equalisation of PA systems.
planetary body renderer

xplanet

planetary body renderer

Xplanet renders an image of a planet into an X window or a file. All of the major planets and most satellites can be drawn, and different map projections are also supported, including azimuthal, hemisphere, Lambert, Mercator, Mollweide, Peters, polyconic, and rectangular.
generic Sokoban game for X11

xsok

generic Sokoban game for X11

xsok is a single player strategic game, a superset of the well-known Sokoban game.