RedHawk Architect: Designing Deterministic Systems from the Ground Up

Designing real-time systems is rarely a linear process. Engineers must consider CPU layout, interrupt handling, process priorities, memory boundaries, and system bus usage. These elements don’t just impact performance they define whether the system meets its timing and safety requirements.

RedHawk Architect is a design-time tool that helps engineers visualize, model, and configure these critical aspects of a real-time Linux system. Instead of relying on trial and error during deployment, teams can build a model of the target system and optimize it before a single line of code is run.

The result is faster development, fewer integration surprises, and systems that perform as expected from day one.

Solving a System-Level Problem

In complex embedded systems, individual components may behave correctly in isolation, yet fail to meet timing requirements when integrated. This is often due to poor resource planning or hidden conflicts between processes, interrupts, or memory usage.

RedHawk Architect helps prevent these issues by allowing engineers to:

• Visualize CPU core usage across real-time and non-real-time tasks
• Define interrupt routing and shielding strategies
• Model how memory regions are assigned and accessed
• Analyze thread priorities and scheduling policies
• Simulate system load conditions and predict bottlenecks

By making these relationships visible early in the development process, teams can design with predictability in mind.

A Visual Modeling Interface

RedHawk Architect features a graphical interface where users can build a digital representation of the target system. You can drag and drop components, assign them to CPUs, define priorities, and specify interrupt mappings.

This interface is especially useful when working with multi-core systems where understanding interactions between cores, processes, and device drivers is difficult without a holistic view.

Changes made in RedHawk Architect can then be exported as configuration files or shell scripts to initialize the real system with the same structure. This helps ensure that what was designed is exactly what gets deployed.

CPU Shielding and Interrupt Management

One of the most valuable features of RedHawk Architect is its ability to define CPU shielding. You can visually assign specific CPU cores to real-time tasks, and then shield them from background processes, system interrupts, and unrelated kernel activity.

Interrupts can be redirected or disabled on selected cores, ensuring that critical tasks run without interference. This level of control helps reduce jitter and makes system performance more consistent under load.

RedHawk Architect makes this process more intuitive by providing templates, validation tools, and live visual feedback on how each CPU is being used.

Integration with RedHawk Linux and NightStar Tools

The configurations created in RedHawk Architect are fully compatible with RedHawk Linux. When applied, they set up the real-time environment to match the modeled design. This reduces the need for manual tuning and scripting during integration.

RedHawk Architect also complements tools in the NightStar suite. For example:

• Use NightTune to monitor whether real-world CPU usage matches your design
• NightTrace can confirm that thread scheduling and interrupt timing follow the plan
• NightView will debug tasks that violate expected behavior or latency targets

This alignment between design, runtime, and analysis tools creates a feedback loop that speeds up development and strengthens confidence in the system’s architecture.

This alignment between design, runtime, and analysis tools creates a feedback loop that speeds up development and strengthens confidence in the system’s architecture.

RedHawk Architect is used by engineering teams who work in fields such as:

• Aerospace and defense systems integration
• Automotive real-time simulation platforms
• Robotics control systems
• Industrial automation
• High-speed data acquisition and signal processing

These industries demand predictable behavior at scale. RedHawk Architect helps teams meet that demand by ensuring that architectural decisions support the performance goals of the application.

Whether you’re building a real-time system from scratch or rearchitecting an existing one, this tool gives you the framework to do it systematically and reliably.

Most performance issues in real-time systems can be traced back to design decisions made too late or without full visibility. RedHawk Architect brings those decisions forward into the planning phase, where they can be modeled, validated, and optimized before deployment begins.

With its visual interface, compatibility with RedHawk Linux, and integration with the broader Concurrent Real-Time ecosystem, RedHawk Architect provides developers with the tools to build systems that are not only functional, but fully deterministic.

If your project depends on real-time performance, RedHawk Architect helps you design for it from day one.