Comparing the Actor Model & CSP Concurrency with Elixir & Clojure | Xiang Ji | Code BEAM Europe 22

Comparing the Actor Model & CSP Concurrency with Elixir & Clojure | Xiang Ji - Senior Backend Engineer at Remote

ABSTRACT
One big selling point of the BEAM VM is its from-the-ground-up implementation of the Actor model. CSP, another concurrency paradigm, has gained a lot of traction via Go, while also being embraced by Clojure. There is shared heritage between Elixir & Clojure, as well as between Actor model & CSP. However, radical differences between BEAM and JVM inevitably lead to intriguing divergences. You'll gain a better understanding of these paradigms, and (hopefully) a bit more appreciation of what makes BEAM unique.

OBJECTIVES
Better understanding of the Actor model
Better understanding of unique features of the BEAM VM (e.g. process memory space isolation, preemptive scheduling, soft real-time, independent generational garbage collection)
Better understanding of CSP, of how concurrency challenges are approached in languages such as Go and Clojure.
Better understanding of the similarities and differences between Elixir and Clojure.
Better understanding of the strengths and weaknesses of the BEAM VM compared with other runtimes such as the JVM.

AUDIENCE
People who could benefit from more knowledge of the BEAM VM, with which they can become better Elixir/Erlang developers.
People who want to learn more about the characteristics of and differences between concurrency paradigms.
People who are curious about Go's/Clojure's approach to concurrency.
People who are curious about the contrast between Elixir and Clojure, the BEAM VM and the JVM.

• Timecodes
00:00 - 02:37 - Intro and Outline
02:38 - 06:34 - BEAM vs. JVM
06:35 - 09:25 - The Actor Model vs. CSP
09:26 - 16:27 - core async and CSP
16:28 - 18:39 - Other Potential Topologies with CSP
18:39 - 20:52 - Inversion of Control "Threads" with the Go Macro
20:53 - 25:36 - Project Loom and Further Resources

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