diff --git a/haiku_rag_slim/haiku/rag/client.py b/haiku_rag_slim/haiku/rag/client.py
index 294bef6e..3f441e51 100644
--- a/haiku_rag_slim/haiku/rag/client.py
+++ b/haiku_rag_slim/haiku/rag/client.py
@@ -1109,9 +1109,7 @@ class HaikuRAG:
             # Step 3: Reranking
             t0 = time.perf_counter()
             chunks = [chunk for chunk, _ in raw_results]
-            chunk_results = await reranker.rerank(
-                query, chunks, top_n=limit
-            )
+            chunk_results = await reranker.rerank(query, chunks, top_n=limit)
             logger.info(
                 "search.rerank candidates=%d top_n=%d took %.3fs",
                 len(chunks),
@@ -1122,8 +1120,7 @@ class HaikuRAG:
         # Step 4: Build SearchResult objects
         t0 = time.perf_counter()
         results = [
-            SearchResult.from_chunk(chunk, score)
-            for chunk, score in chunk_results
+            SearchResult.from_chunk(chunk, score) for chunk, score in chunk_results
         ]
         logger.info(
             "search.build_results count=%d took %.3fs",
@@ -1209,9 +1206,7 @@ class HaikuRAG:
             if has_refs:
                 # Only fetch docling data (skip content blob)
                 t0 = time.perf_counter()
-                doc = await self.document_repository.get_docling_data(
-                    doc_id
-                )
+                doc = await self.document_repository.get_docling_data(doc_id)
                 logger.info(
                     "expand.fetch_docling_data doc=%s took %.3fs",
                     doc_id[:8],
@@ -1221,7 +1216,7 @@ class HaikuRAG:
                     t0 = time.perf_counter()
                     docling_doc = doc.get_docling_document()
                     logger.info(
-                        "expand.decompress_docling doc=%s took %.3fs",
+                        "expand.get_docling_document doc=%s took %.3fs",
                         doc_id[:8],
                         time.perf_counter() - t0,
                     )
@@ -1237,7 +1232,7 @@ class HaikuRAG:
                     max_chars,
                 )
                 logger.info(
-                    "expand.docling doc=%s results=%d->%d took %.3fs",
+                    "expand._expand_with_docling doc=%s results=%d->%d took %.3fs",
                     doc_id[:8],
                     len(doc_results),
                     len(expanded),
@@ -1252,7 +1247,7 @@ class HaikuRAG:
                         doc_id, doc_results, radius
                     )
                     logger.info(
-                        "expand.chunks doc=%s results=%d->%d took %.3fs",
+                        "expand._expand_with_chunks doc=%s results=%d->%d took %.3fs",
                         doc_id[:8],
                         len(doc_results),
                         len(expanded),
@@ -1531,9 +1526,7 @@ class HaikuRAG:
         if not chunk_ids:
             return results
 
-        id_to_order = await self.chunk_repository.get_orders_by_ids(
-            chunk_ids
-        )
+        id_to_order = await self.chunk_repository.get_orders_by_ids(chunk_ids)
         if not id_to_order:
             return results
 
@@ -1543,10 +1536,8 @@ class HaikuRAG:
         range_max = max(orders) + radius
 
         # Fetch only chunks in the needed range
-        chunks_in_doc = (
-            await self.chunk_repository.get_by_document_id_order_range(
-                doc_id, range_min, range_max
-            )
+        chunks_in_doc = await self.chunk_repository.get_by_document_id_order_range(
+            doc_id, range_min, range_max
         )
         if not chunks_in_doc:
             return results
diff --git a/haiku_rag_slim/haiku/rag/store/models/document.py b/haiku_rag_slim/haiku/rag/store/models/document.py
index 02406238..0956be82 100644
--- a/haiku_rag_slim/haiku/rag/store/models/document.py
+++ b/haiku_rag_slim/haiku/rag/store/models/document.py
@@ -1,3 +1,5 @@
+import logging
+import time
 from datetime import datetime
 from typing import TYPE_CHECKING
 
@@ -9,6 +11,7 @@ from haiku.rag.store.compression import decompress_json
 if TYPE_CHECKING:
     from docling_core.types.doc.document import DoclingDocument
 
+logger = logging.getLogger(__name__)
 
 _docling_document_cache: LRUCache[str, "DoclingDocument"] = LRUCache(maxsize=100)
 
@@ -18,12 +21,31 @@ def _get_cached_docling_document(
 ) -> "DoclingDocument":
     """Get or parse DoclingDocument with LRU caching by document ID."""
     if document_id in _docling_document_cache:
+        logger.info("docling.cache_hit doc=%s", document_id[:8])
         return _docling_document_cache[document_id]
 
     from docling_core.types.doc.document import DoclingDocument
 
+    t0 = time.perf_counter()
     json_str = decompress_json(compressed_data)
+    decompress_time = time.perf_counter() - t0
+    logger.info(
+        "docling.decompress doc=%s bytes=%d json_chars=%d took %.3fs",
+        document_id[:8],
+        len(compressed_data),
+        len(json_str),
+        decompress_time,
+    )
+
+    t0 = time.perf_counter()
     doc = DoclingDocument.model_validate_json(json_str)
+    validate_time = time.perf_counter() - t0
+    logger.info(
+        "docling.model_validate doc=%s took %.3fs",
+        document_id[:8],
+        validate_time,
+    )
+
     _docling_document_cache[document_id] = doc
     return doc