fix(autocomplete): reduce tag search overhead (#895)

py/routes/handlers/misc_handlers.py

@@ -13,6 +13,7 @@ import contextlib
 import io
 import json
 import logging
+import time
 import os
 import platform
 import re
@@ -2433,6 +2434,7 @@ class CustomWordsHandler:
                       even without category filtering.
         """
         try:
+            started_at = time.perf_counter()
             search_term = request.query.get("search", "")
             limit = int(request.query.get("limit", "20"))
             offset = max(0, int(request.query.get("offset", "0")))
@@ -2444,6 +2446,16 @@ class CustomWordsHandler:
             if category_param:
                 categories = self._parse_category_param(category_param)
 
+            logger.info(
+                "LM custom words request search=%r category_param=%r categories=%s limit=%s offset=%s enriched=%s",
+                search_term,
+                category_param,
+                categories,
+                limit,
+                offset,
+                enriched_param,
+            )
+
             results = self._service.search_words(
                 search_term,
                 limit,
@@ -2452,6 +2464,14 @@ class CustomWordsHandler:
                 enriched=enriched_param,
             )
 
+            elapsed_ms = (time.perf_counter() - started_at) * 1000
+            logger.info(
+                "LM custom words response search=%r result_count=%s elapsed_ms=%.2f",
+                search_term,
+                len(results),
+                elapsed_ms,
+            )
+
             return web.json_response({"success": True, "words": results})
         except Exception as exc:
             logger.error("Error searching custom words: %s", exc, exc_info=True)