MDBM is a super-fast memory-mapped key/value store.

To use the modern buzzwords, it is NoSQL, and for

many operations, it is Zero-Copy.

It is based on an earlier version by Larry McVoy,

then at SGI, which in turn, is based on SDBM by

Ozan Yigit. [wikipedia DBM article](http://en.wikipedia.org/wiki/Dbm)

Yahoo added significant performance enhancements,

many tools, tests, and comprehensive documentation.

It has been used in production for over a decade,

for a wide variety of applications, both large and small.

It is being released under the BSD license.