diff options
| -rw-r--r-- | synapse/push/bulk_push_rule_evaluator.py | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py index f304f4daf2..9134969553 100644 --- a/synapse/push/bulk_push_rule_evaluator.py +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -20,6 +20,8 @@ from twisted.internet import defer from .push_rule_evaluator import PushRuleEvaluatorForEvent from synapse.api.constants import EventTypes, Membership +from synapse.metrics import get_metrics_for +from synapse.util.caches import metrics as cache_metrics from synapse.util.caches.descriptors import cached from synapse.util.async import Linearizer @@ -31,6 +33,23 @@ logger = logging.getLogger(__name__) rules_by_room = {} +push_metrics = get_metrics_for(__name__) + +push_rules_invalidation_counter = push_metrics.register_counter( + "push_rules_invalidation_counter" +) +push_rules_state_size_counter = push_metrics.register_counter( + "push_rules_state_size_counter" +) + +# Measures whether we use the fast path of using state deltas, or if we have to +# recalculate from scratch +push_rules_delta_state_cache_metric = cache_metrics.register_cache( + "cache", + size_callback=lambda: 0, # Meaningless size, as this isn't a cache that stores values + cache_name="push_rules_delta_state_cache_metric", +) + class BulkPushRuleEvaluator(object): """Calculates the outcome of push rules for an event for all users in the @@ -41,6 +60,12 @@ class BulkPushRuleEvaluator(object): self.hs = hs self.store = hs.get_datastore() + self.room_push_rule_cache_metrics = cache_metrics.register_cache( + "cache", + size_callback=lambda: 0, # There's not good value for this + cache_name="room_push_rule_cache", + ) + @defer.inlineCallbacks def _get_rules_for_event(self, event, context): """This gets the rules for all users in the room at the time of the event, @@ -78,7 +103,10 @@ class BulkPushRuleEvaluator(object): # It's important that RulesForRoom gets added to self._get_rules_for_room.cache # before any lookup methods get called on it as otherwise there may be # a race if invalidate_all gets called (which assumes its in the cache) - return RulesForRoom(self.hs, room_id, self._get_rules_for_room.cache) + return RulesForRoom( + self.hs, room_id, self._get_rules_for_room.cache, + self.room_push_rule_cache_metrics, + ) @defer.inlineCallbacks def action_for_event_by_user(self, event, context): @@ -161,17 +189,19 @@ class RulesForRoom(object): the entire cache for the room. """ - def __init__(self, hs, room_id, rules_for_room_cache): + def __init__(self, hs, room_id, rules_for_room_cache, room_push_rule_cache_metrics): """ Args: hs (HomeServer) room_id (str) rules_for_room_cache(Cache): The cache object that caches these RoomsForUser objects. + room_push_rule_cache_metrics (CacheMetric) """ self.room_id = room_id self.is_mine_id = hs.is_mine_id self.store = hs.get_datastore() + self.room_push_rule_cache_metrics = room_push_rule_cache_metrics self.linearizer = Linearizer(name="rules_for_room") @@ -215,13 +245,17 @@ class RulesForRoom(object): if state_group and self.state_group == state_group: logger.debug("Using cached rules for %r", self.room_id) + self.room_push_rule_cache_metrics.inc_hits() defer.returnValue(self.rules_by_user) with (yield self.linearizer.queue(())): if state_group and self.state_group == state_group: logger.debug("Using cached rules for %r", self.room_id) + self.room_push_rule_cache_metrics.inc_hits() defer.returnValue(self.rules_by_user) + self.room_push_rule_cache_metrics.inc_misses() + ret_rules_by_user = {} missing_member_event_ids = {} if state_group and self.state_group == context.prev_group: @@ -229,8 +263,13 @@ class RulesForRoom(object): # results. ret_rules_by_user = self.rules_by_user current_state_ids = context.delta_ids + + push_rules_delta_state_cache_metric.inc_hits() else: current_state_ids = context.current_state_ids + push_rules_delta_state_cache_metric.inc_misses() + + push_rules_state_size_counter.inc_by(len(current_state_ids)) logger.debug( "Looking for member changes in %r %r", state_group, current_state_ids @@ -375,6 +414,7 @@ class RulesForRoom(object): self.state_group = object() self.member_map = {} self.rules_by_user = {} + push_rules_invalidation_counter.inc() def update_cache(self, sequence, members, rules_by_user, state_group): if sequence == self.sequence: |