The 7th Annual IndicThreads Pune Conference was held on 14-15 December 2012. http://pune12.indicthreads.com/

1. Implementing Lock Free Concurrency with AKKA
Sameer Arora

2. Agenda
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Actor Model for Concurrency.
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Actors V Threads.
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Sleeping Barber Problem.
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Introduction to Akka.
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Demo
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Questions & Feedback
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3. Actors
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Are Objects that communicate only by means of Asynchronous message
passing.
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Do not expose their state to other objects/actors.
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Provide a Non Blocking,highly performant event-driven programming model .
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4. Actors V Threads
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Writing Concurrent programs using Threads is too hard to write and test.
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Shared Memory Model causes Race Conditions, Lowered throughput, deadlocks.
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Actors are Lightweight - consume ~600 bytes memory.
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Do not map one-to-one with OS Threads.
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Actors remain in a suspended state – function via Schedulers running underneath.
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Actors Offer a Lock-free approach to concurrency – helps in Scaling and increased 4
Throughput.

5. Sleeping Barber Problem
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6. AKKA
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Provides a Run time for Actors Programming model.
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Manages the Actors life-cycle
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Has API for Java and Scala .
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Provides Integration with Spring Integration,Apache Camel, Google Guice etc.
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7. Demo
Sleeping Barber problem with Akka
Simple Routing Application on Akka
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8. Questions/Comments/Feedback
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