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Merge pull request #3795 from matrix-org/erikj/faster_sync_state

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User iter* during sync state calculations
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Amber Brown 2018-09-07 00:24:43 +10:00 committed by GitHub
commit ee7c8bd2b5
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2 changed files with 9 additions and 8 deletions
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changelog.d/3795.misc Normal file
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@ -0,0 +1 @@
Make /sync slightly faster by avoiding needless copies

16
synapse/handlers/sync.py
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@ -1729,17 +1729,17 @@ def _calculate_state(
event_id_to_key = { event_id_to_key = {
e: key e: key
for key, e in itertools.chain( for key, e in itertools.chain(
timeline_contains.items(), iteritems(timeline_contains),
previous.items(), iteritems(previous),
timeline_start.items(), iteritems(timeline_start),
current.items(), iteritems(current),
) )
} }
c_ids = set(e for e in current.values()) c_ids = set(e for e in itervalues(current))
ts_ids = set(e for e in timeline_start.values()) ts_ids = set(e for e in itervalues(timeline_start))
p_ids = set(e for e in previous.values()) p_ids = set(e for e in itervalues(previous))
tc_ids = set(e for e in timeline_contains.values()) tc_ids = set(e for e in itervalues(timeline_contains))
# If we are lazyloading room members, we explicitly add the membership events # If we are lazyloading room members, we explicitly add the membership events
# for the senders in the timeline into the state block returned by /sync, # for the senders in the timeline into the state block returned by /sync,