• 1 Post
  • 34 Comments
Joined 1 year ago
cake
Cake day: June 11th, 2023

help-circle












  • Look what I just did:

    "In a real-time kernel, the trouble with using print_k (or similar logging functions) often revolves around potential disruptions to real-time performance. Here are some key issues:

    1. Blocking Behavior: print_k may block if the output buffer is full, leading to unpredictable delays in real-time tasks.

    2. Interrupt Context: Using logging functions within interrupt handlers can lead to priority inversion, causing lower-priority tasks to block higher-priority ones.

    3. Latency: Printing can introduce significant latency, which is detrimental in real-time systems that require deterministic timing.

    4. Context Switching: Frequent logging can increase context switching overhead, impacting overall system performance.

    5. Overhead: The computational overhead of formatting and outputting strings can interfere with time-sensitive operations.

    For these reasons, it’s typically recommended to use alternative methods, such as circular buffers for logging, or to minimize logging in real-time contexts.

    "