Reduce overhead in the typescript sdk#4744
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Description of Changes
1. Cache the connection-id hex prefix and reuse it when generating event IDs
Previously, the SDK rebuilt the connection-id string on every event. Now it computes the prefix once per connection-id update and reuses it.
2. Replace Promise-chained inbound message processing with a synchronous ordered drain loop
Now inbound messages are still processed through a direct drain loop instead of a promise chain to reduce scheduler overhead.
3. Cache encoded reducer/procedure names and use specialized CallReducer/CallProcedure writers
Previously, reducer/procedure calls always went through the generic
ClientMessageobject path and re-encoded the method name each time. Now the SDK caches UTF-8 encoded reducer/procedure names and uses directCallReducer/CallProcedurewriters on the hot path, while keeping the generic path as fallback.API and ABI breaking changes
None
Expected complexity level and risk
2
Testing
Manual: 100K -> 130K TPS running keynote-2 benchmark on apple m2