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I have a simple, CPU-bound, mono-CPU application running in a docker container.
Indeed it fully uses a single CPU on the instance when processing work.

As I understand, there are two main approaches to improve the performance of the application:

  • rewrite the application so that it runs natively on multiple CPU
  • run the application as many times as there are CPUs behind a loadbalancer (each instance would process a chunk of the workload)

What are the pros and cons of these approaches? How to select to the ideal one? Are there others?

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  • This isn't a bad question, but it doesn't fit here. It needs a forum, where open ended discussion is the norm. Here we need specific, usually practical, questions that can have a single specific answer.
    – music2myear
    Commented May 10, 2023 at 2:36
  • Indeed this is a wide question, but there may be good practices out there for this type of problem. Do you recommend any forum? Are there such forums in SO?
    – Guillaume Adam
    Commented May 10, 2023 at 14:44

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