Till 5267cc0f54 Optimise getting local members and membership counts (#3150) ... The previous version was getting **ALL** membership events (as `ClientEvents`, so going through `NewEventFromTrustedJSONWithID`) for a given room. Now we are querying only locally joined users as `ClientEvents`, which should **significantly** reduce allocations. Take for example a large room with 2k membership events, but only 1 local user - avoiding 1999 `NewEventFromTrustedJSONWithID` calls just to calculate the `roomSize` which we can also query by other means. This is also getting called for every `OutputRoomEvent` in the userAPI. Benchmark with 1 local user and 100 remote users. ``` pkg: github.com/matrix-org/dendrite/userapi/consumers cpu: 12th Gen Intel(R) Core(TM) i5-12500H │ old.txt │ new.txt │ │ sec/op │ sec/op vs base │ LocalRoomMembers-16 375.9µ ± 7% 327.6µ ± 6% -12.85% (p=0.000 n=10) │ old.txt │ new.txt │ │ B/op │ B/op vs base │ LocalRoomMembers-16 79.426Ki ± 0% 8.507Ki ± 0% -89.29% (p=0.000 n=10) │ old.txt │ new.txt │ │ allocs/op │ allocs/op vs base │ LocalRoomMembers-16 1015.0 ± 0% 277.0 ± 0% -72.71% (p=0.000 n=10) ```		2023-07-13 14:19:08 +02:00
..
query_test.go	Drop reference_sha column (#3083)	2023-05-24 12:14:42 +02:00
query.go	Optimise getting local members and membership counts (#3150)	2023-07-13 14:19:08 +02:00