Main Task Loop Real-Time Evaluation
1. Description
This report provides a structured evaluation of the main execution loop of the FluxSand application. The loop dispatches operations across different functional modes such as orientation sensing, time display, weather rendering, and user interaction.
Each mode is tested individually using the method Run() under simulated conditions to verify that the loop structure handles transitions correctly and maintains user responsiveness.
⚠️ Note: The following timing results include artificial delays (e.g.,
sleep_for) introduced in unit testing. These delays simulate expected user-facing update intervals and are not representative of actual code execution time.
2. Functional Modes and Simulated Timing
| Mode ID | Description | Simulated Time (ms) |
|---|---|---|
| 0 | Default idle / standby | 8.05 |
| 1 | Orientation / hourglass flow | 9.87 |
| 2 | Countdown timer | 9.85 |
| 3 | Stopwatch | 9.88 |
| 4 | Pomodoro / Timed task mode | 5.06 |
| — | Total Simulated Time | 42.91 ms |
3. Analysis
- Each mode’s
Run()method includes a simulated fixed delay to emulate its expected user interaction cadence or visual update rate. - These artificial timings help verify that the application logic respects a stable time budget per mode and avoids blocking the main loop.
- With all five modes executing in under 50 ms total (simulated), the loop structure supports at least 20 Hz task dispatching, even in worst-case mode cycling.
- In practice, the real execution time will be significantly shorter, allowing the system to support much higher update rates or reserve time for background threads.
4. Conclusion
While the execution times presented here reflect deliberately introduced delays rather than true runtime performance, the evaluation confirms:
- The main task loop is well-structured and handles multiple modes within tight, predictable time slots.
- Even under conservative simulation, the system ensures smooth mode switching and responsive behavior.
- For future optimization and profiling, hardware-in-the-loop tests without artificial delay will provide precise measurements of actual computational load.
This test validates the design of the main loop as real-time capable, with sufficient headroom to support complex interactions and background inference.