Does anybody have any experience with FastDB (C++ in-memory database)?

Question

FastDB is an open-source, in-memory database that\'s tightly integrated with C++ (it supports a SQL-like query language where tables are classes and rows are objects). Like most

Answer 1

A recent post on an Erlang forum (from 2009): http://www.trapexit.org/forum/viewtopic.php?p=49476#49476 has someone (Serge Aleynikov) recommending FastDB for trading systems with sub-millisecond latencies:

If you don't want to spend too much time coding C++, since you have
already done good work of abstracting mnesia backend, why don't you
create an Erlang driver for this database: www.fastdb.org. It's based
on memory mapped files, implemented in C++, is relatively fast compared
to other in-memory databases (about 250k lookups/s, 50k inserts/s), has
time-series capabilities, simple C-API. I implemented FastDB interface
in several languages, and generally it's good for systems that deal with
latencies in sub-milliseconds range. It may suffice for you unless you
need to stay in the low microseconds realm.

My 2c.

Serge

It's pretty intimidating to see people worrying about latencies in the low microseconds; I'm considering FastDB for digital signal processing (DSP), where live audio systems generally limit latency to no more than about 10 milliseconds. Of course, if a system responds in milliseconds, we might use input pulses of only a few microseconds in length.

There's no mention of what system was used for the 250K lookups/s, 50K inserts/s. Still, it's a positive sign.