SQLite

Atomic Commit In SQLite

http://web.utk.edu/~jplyon/sqlite/SQLite_optimization_FAQ.html

X Windows for Embedded Systems

Tiny-X is a small footprint X Window server implementation for embedded systems. It was originally developed by Keith Packard of the XFree86 Core Team, sponsored by SuSE. The goal was to create something that would work well in a small memory footprint and, importantly, be robust in near out-of-memory situations. Typical X servers based on Tiny-X can fit in less than 1MB on x86 CPUs.The project has since forked into several projects, including KDrive, SmallX, and Integrated Tiny-X.

Performace

* X Window : x11perf
* GTK : http://gtkperf.sourceforge.net/
* X.Org Wiki - Development/Documentation/Performance : http://www.x.org/wiki/Development/Documentation/Performance?highlight=%28performance%29