1 files changed, 7 insertions, 0 deletions
diff --git a/synapse/http/server.py b/synapse/http/server.py
index 9edb957ec2..165c684d0d 100644
--- a/synapse/http/server.py
+++ b/synapse/http/server.py
@@ -102,6 +102,10 @@ response_db_txn_duration = metrics.register_counter(
     ),
 )
 
+# seconds spent waiting for a db connection, when processing this request
+response_db_sched_duration = metrics.register_counter(
+    "response_db_sched_duration_seconds", labels=["method", "servlet", "tag"]
+)
 
 _next_request_id = 0
 
@@ -372,6 +376,9 @@ class RequestMetrics(object):
         response_db_txn_duration.inc_by(
             context.db_txn_duration_ms / 1000., request.method, self.name, tag
         )
+        response_db_sched_duration.inc_by(
+            context.db_sched_duration_ms / 1000., request.method, self.name, tag
+        )
 
 
 class RootRedirect(resource.Resource):