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Measure time it takes to calculate state group ID

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This commit is contained in:
Erik Johnston 2018-03-28 11:03:52 +01:00
parent f879127aaa
commit 01ccc9e6f2
1 changed files with 26 additions and 25 deletions
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51
synapse/state.py
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@ -483,33 +483,34 @@ class StateResolutionHandler(object):
key: e_ids.pop() for key, e_ids in state.iteritems()
}
# if the new state matches any of the input state groups, we can
# use that state group again. Otherwise we will generate a state_id
# which will be used as a cache key for future resolutions, but
# not get persisted.
state_group = None
new_state_event_ids = frozenset(new_state.itervalues())
for sg, events in state_groups_ids.iteritems():
if new_state_event_ids == frozenset(e_id for e_id in events):
state_group = sg
break
with Measure(self.clock, "state.create_group_ids"):
# if the new state matches any of the input state groups, we can
# use that state group again. Otherwise we will generate a state_id
# which will be used as a cache key for future resolutions, but
# not get persisted.
state_group = None
new_state_event_ids = frozenset(new_state.itervalues())
for sg, events in state_groups_ids.iteritems():
if new_state_event_ids == frozenset(e_id for e_id in events):
state_group = sg
break
# TODO: We want to create a state group for this set of events, to
# increase cache hits, but we need to make sure that it doesn't
# end up as a prev_group without being added to the database
# TODO: We want to create a state group for this set of events, to
# increase cache hits, but we need to make sure that it doesn't
# end up as a prev_group without being added to the database
prev_group = None
delta_ids = None
for old_group, old_ids in state_groups_ids.iteritems():
if not set(new_state) - set(old_ids):
n_delta_ids = {
k: v
for k, v in new_state.iteritems()
if old_ids.get(k) != v
}
if not delta_ids or len(n_delta_ids) < len(delta_ids):
prev_group = old_group
delta_ids = n_delta_ids
prev_group = None
delta_ids = None
for old_group, old_ids in state_groups_ids.iteritems():
if not set(new_state) - set(old_ids):
n_delta_ids = {
k: v
for k, v in new_state.iteritems()
if old_ids.get(k) != v
}
if not delta_ids or len(n_delta_ids) < len(delta_ids):
prev_group = old_group
delta_ids = n_delta_ids
cache = _StateCacheEntry(
state=new_state,