Merge pull request #6251 from matrix-org/michaelkaye/debug_guard_logging

* commit '44ab048cf':
  Address codestyle concerns
  Reduce impact of debug logging
  Delay printf until logging is required.
  use %r to __repr__ objects
  Don't encode object as UTF-8 string if not needed.

2 files changed, 3 insertions, 3 deletions

diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 5b22a39b7f..f5c1632916 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -196,7 +196,7 @@ class FederationClient(FederationBase):
             dest, room_id, extremities, limit
         )
 
-        logger.debug("backfill transaction_data=%s", repr(transaction_data))
+        logger.debug("backfill transaction_data=%r", transaction_data)
 
         room_version = yield self.store.get_room_version(room_id)
         format_ver = room_version_to_event_format(room_version)
diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py
index 7b18408144..920fa86853 100644
--- a/synapse/federation/transport/client.py
+++ b/synapse/federation/transport/client.py
@@ -122,10 +122,10 @@ class TransportLayerClient(object):
             Deferred: Results in a dict received from the remote homeserver.
         """
         logger.debug(
-            "backfill dest=%s, room_id=%s, event_tuples=%s, limit=%s",
+            "backfill dest=%s, room_id=%s, event_tuples=%r, limit=%s",
             destination,
             room_id,
-            repr(event_tuples),
+            event_tuples,
             str(limit),
         )