eXtremeDB was introduced in 2001 by McObject LLC, targeting embedded systems running in resource-constrained environments (i.e. with limited random-access memory and relatively low-powered central processing units).
Early deployments by customers included integration in digital TV set-top boxes, manufacturing and industrial control systems, and telecom/networking devices.
The eXtremeDB Fusion edition provides the option of persistent storage (disk or flash) for specific tables, via a database schema notation.
Main-Memory vs. RAM-Disk Databases: a Linux-Based Benchmark examined IMDS performance versus that of a traditional on-disk DBMS deployed on a RAM disk, on identical application tasks.
The benchmark’s stated goal was to test the thesis that an IMDS streamlined architecture delivers a performance benefit beyond that provided by memory-based storage.
For the test, engineers created a 1.17 terabyte, 15.54 billion row database with eXtremeDB on a 160-core SGI Altix 4700 system running SUSE Linux Enterprise Server 9.
The first, dated October 29, evaluated McObject's DBMS performance on IBM POWER8 hardware, while the second, on November 18, detailed its application in cloud computing.