fixes and improvements

backend/src/media_library_viewer_api/clients/resources.py

@@ -111,7 +111,6 @@ prune_metrics_file() {
 }
 
 while true; do
-  sleep "$INTERVAL"
   now_ts="$(date +%s)"
   dt=$((now_ts - prev_ts))
   if [ "$dt" -le 0 ]; then dt=1; fi
@@ -161,6 +160,7 @@ while true; do
   prev_disk_read="$disk_read"
   prev_disk_write="$disk_write"
   prev_ts="$now_ts"
+  sleep "$INTERVAL"
 done
 '''