memcached-prefix is an experimental fork off of the memcached 1.3 development branch. It adds commands pget and pdelete that operate on ranges of keys having a common prefix. The new commands can be used as a simple namespace mechanism. It also adds a memcachedb compatible rget command.
Performance is very close to the standard memcached (see the benchmarks on the project page). Space usage is also roughly unchanged. Project page: http://jdybnis.github.com/memcached/
