1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/app/generic_worker.py b/synapse/app/generic_worker.py
index 7b2ac3ca64..d831f793b9 100644
--- a/synapse/app/generic_worker.py
+++ b/synapse/app/generic_worker.py
@@ -452,6 +452,7 @@ def start(config_options):
         config.server.update_user_directory = False
 
     synapse.events.USE_FROZEN_DICTS = config.use_frozen_dicts
+    synapse.util.caches.lrucache.TRACK_MEMORY_USAGE = config.caches.track_memory_usage
 
     hs = GenericWorkerServer(
         config.server_name,