perf: throttle OG image generation — nice 19 + 50ms sleep between renders

2026-05-24 19:02:08 +02:00
parent b827792d16
commit c9b544ab55
2 changed files with 4 additions and 0 deletions
@@ -2,6 +2,7 @@
 from __future__ import annotations

 import logging
+import os
 import shutil
 import subprocess
 import threading
@@ -102,6 +103,7 @@ def _site_rebuild_worker() -> None:
                         "--www-root", _webroot],
                        capture_output=True,
                        text=True,
+                        preexec_fn=lambda: os.nice(19),
                    )
                    if og.returncode != 0:
                        log.error("site-rebuild: og-images failed (rc=%d):\n%s\n%s",