Reiser4 is an atomic filesystem, which means that your
filesystem operations either entirely occur, or they entirely
don't, and they don't corrupt due to half occuring. We do this
without significant performance losses, because we invented
algorithms to do it without copying the data twice.
Reiser4 uses dancing trees, which obsolete the balanced tree
algorithms used in databases. This makes Reiser4 more space
efficient than other filesystems because we squish small files
together rather than wasting space due to block alignment like
they do. It also means that Reiser4 scales better than any other
filesystem. Do you want a million files in a directory, and want
to create them fast? No problem.
Reiser4 is based on plugins, which means that it will attract
many outside contributors, and you'll be able to upgrade to
their innovations without reformatting your disk. If you like to
code, you'll really like plugins....
Reiser4 is architected for military grade security. You'll find
it is easy to audit the code, and that assertions guard the
entrance to every function.
