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extremeDB/rt for hard real-time systems

eXtremeDB/rt is the 1st and only small-footprint embedded database management system for mission-critical hard real-time systems such as SCADA and ADAS. Experience unwavering reliability, unparalleled performance, and predictable execution with eXtremeDB/rt.

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extremeDB/rt for hard real-time systems

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, making it ideal for data management in hard real-time systems such as mission-critical sensor data fusion.

What sets extremeDB/rt apart?

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.

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.

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.

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.

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.

Supports Asymmetric MultiProcessing (AMP)

eXtremeDB now offers support for Asymmetric MultiProcessing (AMP) architecture systems. These systems are characterized by having two CPUs of differing architecture, typically running different operating systems (e.g., FreeRTOS/ARM Cortex-M and Linux/ARM Corex-A), and a memory buffer shared by the CPUs that can be used for an in-memory database available to both CPUs.

extremeDB/rt

the first and only hard real-time embedded database management system for mission-critical hard real-time applications.

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