Add length to the list of events

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/controllers/persist_events.py b/synapse/storage/controllers/persist_events.py

index 72b4dcef59..7cb69fa4f3 100644
--- a/synapse/storage/controllers/persist_events.py
+++ b/synapse/storage/controllers/persist_events.py
@@ -391,7 +391,7 @@ class EventsPersistenceStorageController:
                 a room that has been un-partial stated.
         """
         set_attribute(
-            SynapseTags.FUNC_ARG_PREFIX + "event_ids",
+            SynapseTags.FUNC_ARG_PREFIX + f"event_ids ({len(events_and_contexts)})",
             str([e.event_id for e, _ in events_and_contexts]),
         )
         set_attribute(SynapseTags.FUNC_ARG_PREFIX + "backfilled", str(backfilled))