McObject cuts eXtremeDB/rt memory use and expands flash simulation

McObject has released a new service update for eXtremeDB/rt, its hard real-time embedded database, with a smaller runtime footprint, expanded storage simulation and broader hardware and networking support. The changes target developers building deterministic systems on resource-constrained hardware and could lower BOM costs and speed up tuning before hardware prototypes arrive.

Why it matters: - Embedded and hard real-time systems often have tight RAM, storage and timing limits. - McObject says the new eXtremeDB/rt release is designed to help developers fit database software into smaller devices without losing determinism. - The update also gives engineering teams more tools to model flash behavior before hardware is available, which can shorten development cycles.

What happened: - McObject announced a new service release of eXtremeDB/rt, its embedded database management system for deeply embedded and hard real-time systems. - The release is available immediately. - McObject says the update reduces memory footprint, expands flash simulation and broadens hardware and networking support. - The company said developers can visit More information for technical specifications or to request an evaluation version.

The details: - McObject says it demonstrated in its labs that a 1 GB database on flash can run with as little as 40K memory allocated for metadata, cache and stack. - The lower memory requirement is intended to improve scalability and support strict determinism in deeply embedded systems. - The flash simulator now includes transaction file mapping. - Developers can use the simulator to evaluate access parameters across raw flash devices, managed NAND, eMMC and SD cards. - Engineering teams can tune flash access behavior and cache settings earlier in the development cycle. - Core runtime support now extends to STM-based boards. - The release adds full ONFI specification support for NAND flash device identification, geometry discovery and low-level operations. - The update also adds SD card support in SPI mode for microcontrollers without dedicated SDIO interfaces. - EWSlite, the integrated lightweight web server framework, now has native support for LwIP. - McObject says the networking update helps resource-limited platforms maintain HTTP-based connectivity and remote access services without adding much processing overhead.

Between the lines: - The release is aimed at developers who need to reduce hardware cost and software overhead at the same time. - The flash simulation changes point to a push to move storage tuning earlier, when prototype hardware may not yet exist. - Broadening support for STM boards, ONFI and SPI-mode SD cards suggests McObject is trying to make eXtremeDB/rt easier to deploy across more embedded designs. - The LwIP integration shows the company is also treating networking as part of the real-time footprint problem, not a separate add-on.

What’s next: - McObject said the new service release can be evaluated now through its website. - Developers building deterministic embedded applications are likely to test the updated simulator and memory profile against their target hardware and storage layouts. - Further adoption will depend on whether the smaller footprint and broader compatibility translate into simpler deployments in production systems.

The bottom line: - McObject is pitching eXtremeDB/rt as a leaner hard real-time database that is easier to simulate, tune and deploy on constrained embedded hardware.