Huge latency on pselect
If you're experiencing high latency on the `pselect` system call in your code, it can be caused by several factors. `pselect` is used for waiting on multiple file descriptors and can be affected by various conditions. Here are some potential reasons and solutions for latency issues with `pselect`: 1. **Blocking Operations on File Descriptors:** If any of the file descriptors you're monitoring with `pselect` block for a long time (e.g., due to slow I/O operations), it can introduce latency. Ensure that the file descriptors you're waiting on are not causing the delay. 2. **Signal Handling:** The `pselect` system call can be interrupted by signals. If you have signal handlers that execute slowly or frequently, it can lead to latency. Review your signal handling code to optimize it or reduce the frequency of signal delivery. 3. **Resource Contention:** System-wide resource contention, such as CPU or memory contention, can cause latency in all system calls, including `