diff --git a/eval.py b/eval.py
new file mode 100644
index 0000000000..8a7b501eb9
--- /dev/null
+++ b/eval.py
@@ -0,0 +1,179 @@
+from time import time
+from typing import Any, Collection, Dict, List
+
+from synapse.api.constants import EventTypes
+from synapse.api.room_versions import RoomVersions
+from synapse.config.experimental import ExperimentalConfig
+from synapse.events import EventBase, make_event_from_dict
+from synapse.push.baserules import FilteredPushRules, PushRules
+from synapse.push.push_rule_evaluator import PushRuleEvaluatorForEvent
+
+
+def compute_push_actions(
+ experimental_config: ExperimentalConfig,
+ evaluator: PushRuleEvaluatorForEvent,
+ event: EventBase,
+ rules_by_user: Dict[str, FilteredPushRules],
+ profiles: Dict[str, Any],
+ count_as_unread: bool,
+ uids_with_visibility: Collection[str],
+) -> Dict[str, List]:
+ actions_by_user = {}
+
+ default_rules = FilteredPushRules(PushRules(), {}, experimental_config)
+
+ matching_default_rule = None
+ for rule, _ in default_rules:
+ if not rule.default_enabled:
+ continue
+
+ matches = evaluator.check_conditions(rule.conditions, "uid", None)
+ if matches:
+ matching_default_rule = rule
+ break
+
+ joining_user = None
+ if event.type == EventTypes.Member:
+ joining_user = event.state_key
+
+ for uid, rules in rules_by_user.items():
+ if event.sender == uid:
+ try:
+ actions_by_user.pop(uid)
+ except KeyError:
+ pass
+ continue
+
+ if uid not in uids_with_visibility:
+ try:
+ actions_by_user.pop(uid)
+ except KeyError:
+ pass
+ continue
+
+ display_name = None
+ profile = profiles.get(uid)
+ if profile:
+ display_name = profile.display_name
+
+ if not display_name and joining_user:
+ # Handle the case where we are pushing a membership event to
+ # that user, as they might not be already joined.
+ if joining_user == uid:
+ display_name = event.content.get("displayname", None)
+ if not isinstance(display_name, str):
+ display_name = None
+
+ if count_as_unread:
+ # Add an element for the current user if the event needs to be marked as
+ # unread, so that add_push_actions_to_staging iterates over it.
+ # If the event shouldn't be marked as unread but should notify the
+ # current user, it'll be added to the dict later.
+ actions_by_user[uid] = []
+
+ matched_default = False
+ if matching_default_rule:
+ if not rules.enabled_map.get(matching_default_rule.rule_id, True):
+ continue
+
+ matched_default = True
+
+ override = rules.push_rules.overriden_base_rules.get(
+ matching_default_rule.rule_id
+ )
+ if override:
+ actions = override.actions
+ else:
+ actions = matching_default_rule.actions
+
+ actions = [x for x in actions if x != "dont_notify"]
+
+ if actions and "notify" in actions:
+ actions_by_user[uid] = matching_default_rule.actions
+
+ for rule, enabled in rules.user_specific_rules():
+ if not enabled:
+ continue
+
+ if (
+ matched_default
+ and rule.priority_class < matching_default_rule.priority_class
+ ):
+ break
+
+ matches = evaluator.check_conditions(rule.conditions, uid, display_name)
+ if matches:
+ actions = [x for x in rule.actions if x != "dont_notify"]
+ if actions and "notify" in actions:
+ # Push rules say we should notify the user of this event
+ actions_by_user[uid] = actions
+ else:
+ try:
+ actions_by_user.pop(uid)
+ except KeyError:
+ pass
+ break
+
+ return actions_by_user
+
+
+if __name__ == "__main__":
+ event = make_event_from_dict(
+ {
+ "auth_events": [
+ "$Y6V1n3kQq_G2Q2gqma4tXbS0TtZQYne-zk8EGymcErI",
+ "$RWzLUHmF5Hc6kr5hJuCY7gcDt3bVXS2JL6oJD7lTEdo",
+ "$uIZRw93tT3lXnpMj40J8aPbnDkXeaWtgJWBVrfeQsYs",
+ ],
+ "prev_events": ["$6lCOe9WyCBREZrvfdShVHO7OgBZ3HA82AN-TsGzsj94"],
+ "type": "m.room.message",
+ "room_id": "!mWlQLVyRcFtLrKOgEl:localhost:8448",
+ "sender": "@user-nn87-main:localhost:8448",
+ "content": {
+ "org.matrix.msc1767.text": "test",
+ "body": "test",
+ "msgtype": "m.text",
+ },
+ "depth": 5006,
+ "prev_state": [],
+ "origin": "localhost:8448",
+ "origin_server_ts": 1660738396696,
+ "hashes": {"sha256": "j2X9zgQU6jUqARb9blCdX5UL8SKKJgG1cTxb7uZOiLI"},
+ "signatures": {
+ "localhost:8448": {
+ "ed25519:a_ERAh": "BsToq2Bf2DqksU5i7vsMN2hxgRBmou+5++IK4+Af8GLt46E9Po1L5Iv1JLxe4eN/zN/jYW03ULGdrzzJkCzaDA"
+ }
+ },
+ "unsigned": {"age_ts": 1660738396696},
+ },
+ RoomVersions.V10,
+ )
+ evaluator = PushRuleEvaluatorForEvent(event, 5000, 0, {}, {}, False)
+
+ experimental_config = ExperimentalConfig()
+ experimental_config.read_config({})
+
+ rules_by_user = {
+ f"@user-{i}:localhost": FilteredPushRules(PushRules(), {}, experimental_config)
+ for i in range(5000)
+ }
+
+ uids_with_visibility = set(rules_by_user)
+
+ start = time()
+ number = 100
+
+ for _ in range(number):
+ result = compute_push_actions(
+ experimental_config,
+ evaluator,
+ event,
+ rules_by_user,
+ {},
+ True,
+ uids_with_visibility,
+ )
+
+ end = time()
+
+ print(f"Average time: {(end - start)*1000/number:.3}ms")
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