Enhancement: Allow setting both Celery and UWSGI nice levels. Default nice levels are UWSGI=0, Celery=5. Added documentation to the compose files on how to use it. Using nice levels for UWSGI allows us to have streaming run at a high priority.

docker/docker-compose.aio.yml

@@ -14,6 +14,15 @@ services:
       - REDIS_HOST=localhost
       - CELERY_BROKER_URL=redis://localhost:6379/0
       - DISPATCHARR_LOG_LEVEL=info
+      # Process Priority Configuration (Optional)
+      # Lower values = higher priority. Range: -20 (highest) to 19 (lowest)
+      # Negative values require cap_add: SYS_NICE (uncomment below)
+      #- UWSGI_NICE_LEVEL=-5   # uWSGI/FFmpeg/Streaming (default: 0, recommended: -5 for high priority)
+      #- CELERY_NICE_LEVEL=5   # Celery/EPG/Background tasks (default: 5, low priority)
+    #
+    # Uncomment to enable high priority for streaming (required if UWSGI_NICE_LEVEL < 0)
+    #cap_add:
+    #  - SYS_NICE
     # Optional for hardware acceleration
     #devices:
     #  - /dev/dri:/dev/dri  # For Intel/AMD GPU acceleration (VA-API)