From b4b2fd2ecee26214fa6b322bcb62bec1ea324c1a Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Tue, 1 Jun 2021 12:04:47 +0100
Subject: add a cache to have_seen_event (#9953)

Empirically, this helped my server considerably when handling gaps in Matrix HQ. The problem was that we would repeatedly call have_seen_events for the same set of (50K or so) auth_events, each of which would take many minutes to complete, even though it's only an index scan.
---
 tests/storage/databases/main/__init__.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tests/storage/databases/main/__init__.py

(limited to 'tests/storage/databases/main/__init__.py')

diff --git a/tests/storage/databases/main/__init__.py b/tests/storage/databases/main/__init__.py
new file mode 100644
index 0000000000..c24c7ecd92
--- /dev/null
+++ b/tests/storage/databases/main/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2021 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
-- 
cgit 1.5.1