After migrating my actors-based application from 2.5 to 2.6, I got bad performance on load. Reading the migration manual, I suspect the changes in dispatchers are causing it:
- default dispatcher size factor reduced to 1.0
- A new internal dispatcher was added
It is mentioned that I can modify it via configuration. So just to make I’m doing it the right way.
Are these the lines I need to add to my config file in order to restore the 2.5 behavior:
actor.internal-dispatcher = akka.actor.default-dispatcher actor.default-dispatcher.fork-join-executor.parallelism-factor = 3.0