1. OpenLDAP Lightning Memory-Mapped Database (LMDB): <http://symas.com/mdb/> 2. Benchmarks: <http://symas.com/mdb/microbench/> 3. SQLite3 ported to use MDB instead of its original Btree code: <https://gitorious.org/mdb/sqlightning>
"LMDB is an ultra-fast, ultra-compact key-value data store developed by Symas for the OpenLDAP Project. It uses memory-mapped files, so it has the read performance of a pure in-memory database while still offering the persistence of standard disk-based databases, and is only limited to the size of the virtual address space, (it is not limited to the size of physical RAM)." It looks like LMDB has speed and size advantages on memory constrained systems like Android and B2G. Cons: 1. Still very new. I have no idea what their code coverage looks like. 2. Uses their own OpenLDAP Public Licence (a BSD variant). There are claims that this is OSI-approved, however the OSI site itself doesn't list it. 3. Migration costs (If it ain't broke, don't fix it) not to mention more churn. Phil -- Philip Chee <phi...@aleytys.pc.my>, <philip.c...@gmail.com> http://flashblock.mozdev.org/ http://xsidebar.mozdev.org Guard us from the she-wolf and the wolf, and guard us from the thief, oh Night, and so be good for us to pass. _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
