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Lightning memory-mapped database
Name: Lightning memory-mapped database
File size: 162mb
Lightning Memory-Mapped Database (LMDB) is a software library that provides a high-performance embedded transactional database in the form of a key-value Technical description - Performance - Reliability - API and uses. The entire database is exposed in a memory map, and all data fetches return data directly from the mapped memory, so no malloc's or memcpy's occur during . An ultra-fast, ultra-compact, crash-proof key-value embedded data store. Symas LMDB is an extraordinarily fast, memory-efficient database we developed for the OpenLDAP Project. With memory-mapped files, it has the read performance of a pure in-memory database while retaining the.
Symas Lightning Memory-Mapped Database (LMDB). Contribute to clibs/lmdb development by creating an account on GitHub. If you have multiple databases, all of them are going to reside in the same file. The way it works, it creates a file and then map it into memory. 4 Jan - 46 min - Uploaded by Parleys The Lightning Memory-Mapped Database (LMDB) is a new database library written by Symas.
write-ahead-logging (WAL). (You probably know this, but just in case: the way databases usually guarantee consistency is by ensuring that log. 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. An very interesting aspect is the fact that LMDB allows direct memory writes (with the additional risk of corrupting the db if you messed the data). Howard Chu discusses the Lightning Memory-Mapped Database (LMDB) design and architecture, and its impact on other projects such as.