eXtremeDB/rt

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Aircraft

Automotive

Railway

Energy

Medical

Deterministic ACID-compliant transactions

Adaptable real-time transaction managers

No restrictions on execution patterns

Highly configurable database kernel

Broad RTOS Support

eXtremeDB/rt is the first and only deterministic embedded database management system for mission- and safety-critical hard real-time applications.

Modern avionics and aircraft navigation systems, driver assistance systems, critical medical equipment and similar systems’ data management is complex, often non-interruptible and have strict requirements for timely execution. Those requirements are defined as real-time constraints on the systems’ temporal behavior. The eXtremeDB/rt pioneering design addresses those constraints through preserving the temporal validity of data and enforcing predictable execution of critical data transactions.

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eXtremeDB/rt Q & A: what distinguishes a true real-time database?

What sets eXtremeDB/rt apart?

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Deterministic ACID-compliant transactions

eXtremeDB/rt provides transaction semantics for passing the transaction’s deadline and transaction priority to the database scheduler, while the eXtremeDB/rt kernel enforces these deadlines. At the same time, the kernel preserves strong internal database consistency through enforcing the ACID transactions’ properties.

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Adaptable real-time transaction managers

The eXtremeDB/rt transaction manager is based on a preemptive High Priority Earliest Deadline First (EDF) scheduling algorithm. An alternative transaction manager makes use of the priority inheritance protocol (PIP) implemented by most modern real-time operating systems. Regardless of the choice, the real-time transactions deadlines are fully enforced.

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No restrictions on execution patterns

The eXtremeDB/rt transaction managers adapt to the underlying OS schedulers, yet do not make any assumptions about transactions patterns and/or the applications’ data flow. The schedulers can handle periodic and aperiodic transactions and do not require any execution-time estimates to enforce transactions’ deadlines.

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Highly configurable database kernel

While preserving fully deterministic real-time transaction control, the eXtremeDB/rt kernel can be easily tailored for the specific needs of target applications. Source-code level kernel configurations can include only features required by the target applications, excluding unnecessary database management code.

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Broad RTOS Support

In order to satisfy hard real-time requirements, the eXtremeDB/rt target applications must run in the context of a real-time operating system. eXtremeDB/rt is available for all major commercial RTOS including those that are certified to airborne safety (DO-178B/C ) and automotive safety (ISO 26262) specifications on selected hardware.

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In the News

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“Embedded Executive: Steve Graves, President and CEO, McObject” EmbeddedComputing.com, January, 2022 An interview reviewing key concepts in real-time computing.

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McObject Announces Availability of eXtremeDB/rt for Microsoft Azure RTOS ThreadX, EEJournal.com. November 11, 2021

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Tailored to your needs.

The nature of eXtremeDB/rt’s tight integration with the RTOS and target hardware requires that each evaluation package be assembled uniquely for your needs.

Please contact us so that we can gather information on your RTOS vendor, version, target hardware, tool chain, and so on.

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Articles about hard real-time data management and eXtremeDB/rt.

"Embedded Executive: Steve Graves, President and CEO, McObject" EmbeddedComputing.com, January, 2022 An interview reviewing key concepts in real-time computing.

"McObject Announces Availability of eXtremeDB/rt for Microsoft Azure RTOS ThreadX" Electronic Engineering Journal November 11, 2021

"McObject Collaborates with Wind River to Deliver the First-Ever Deterministic Database Systems for VxWorks-based Real-time Embedded Systems" COTS Journal, October, 2021 Please find us on page 8.

"Databases in Hard Real Time" McObject Launches True Real-Time Deterministic Database for embOS Real-time Operating System Applications, Wilmott.com, October 15, 2021

"On eXtremeDB/rt. Q&A with Steven Graves, Real-time analytics has nothing to do with real-time systems." By Roberto Zicari ODBMS.org, October 7, 2021.

"Keeping A Mission-Critical Deterministic DBMS On Time" by McObject CTO Andrei Gorine EmbeddedComputing.com, September 20, 2021

"Real time tasks need real time data" Read the Wind River blog, September 7, 2021