They don't just talk the talk, they walk the walk. Typesafe (the company founded by Martin Odersky) offers Typesafe Console as a part of their Reactive Platform

They don't just talk the talk, they walk the walk. Typesafe (the company founded by Martin Odersky) offers Typesafe Console as a part of their Reactive Platform. There you can see lots of data related to an application using Akka, including its performance and possible bottlenecks. You can use it easily from the web browser, the only downside is the large amount of RAM used.