From 889a2a853a83057d4f218bb828bf686db786d590 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Tue, 13 Mar 2018 09:57:54 +0000
Subject: [PATCH] Add Measure block for persist_events

This seems like a useful thing to measure.
---
 synapse/storage/events.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 826fad307..389087817 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -283,10 +283,11 @@ class EventsStore(EventsWorkerStore):
     def _maybe_start_persisting(self, room_id):
         @defer.inlineCallbacks
         def persisting_queue(item):
-            yield self._persist_events(
-                item.events_and_contexts,
-                backfilled=item.backfilled,
-            )
+            with Measure(self._clock, "persist_events"):
+                yield self._persist_events(
+                    item.events_and_contexts,
+                    backfilled=item.backfilled,
+                )
 
         self._event_persist_queue.handle_queue(room_id, persisting_queue)