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Reduce size of joined_user cache

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The _get_joined_users_from_context cache stores a mapping from user_id
to avatar_url and display_name. Instead of storing those in a dict,
store them in a namedtuple as that uses much less memory.

We also try converting the string to ascii to further reduce the size.
This commit is contained in:
Erik Johnston 2017-04-25 14:38:51 +01:00
parent 22f3d3ae76
commit d9aa645f86
4 changed files with 40 additions and 11 deletions
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7
synapse/push/bulk_push_rule_evaluator.py
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@ -87,8 +87,11 @@ class BulkPushRuleEvaluator:
condition_cache = {}
for uid, rules in self.rules_by_user.items():
display_name = room_members.get(uid, {}).get("display_name", None)
if not display_name:
display_name = None
profile_info = room_members.get(uid, {})
if profile_info:
display_name = profile_info.display_name
else:
# Handle the case where we are pushing a membership event to
# that user, as they might not be already joined.
if event.type == EventTypes.Member and event.state_key == uid: