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[Discussion] corosio produces much bigger binaries than asio #365

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[Discussion] corosio produces much bigger binaries than asio#365

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@pfeatherstone
pfeatherstone
opened on Sep 25, 2026

I'm comparing a simple echo server written in corosio and asio. I'm using the example echo server on the corosio webpage. I've attached the code. On my machine, compiling with gcc 14.2.0 i get the following binary sizes:

  • echo_corosio: 683280 bytes
  • echo_asio: 108952 bytes

CMakeLists.txt

main_asio.cpp

main_corosio.cpp

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  1. github-project-automation
    added this to Beast2on Sep 25, 2026
  2. github-project-automation
    moved this to Backlog in Beast2on Sep 25, 2026

  3. pfeatherstone commented on Sep 25, 2026

    @pfeatherstone
    pfeatherstone
    on Sep 25, 2026
    Author

    Could you open the "discussions" tab on the corosio project?

  4. pfeatherstone commented on Sep 25, 2026

    @pfeatherstone
    pfeatherstone
    on Sep 25, 2026
    Author

    when i compile with clang18 i get:

    • echo_corosio: 692496 bytes
    • echo_asio: 101664 bytes

  5. pfeatherstone commented on Sep 25, 2026

    @pfeatherstone
    pfeatherstone
    on Sep 25, 2026
    Author

    so i'm not convinced of the promise of "smaller binaries" due to less template bloat.

  6. cppalliance
    locked and limited conversation to collaborators on Sep 25, 2026
  7. sgerbino
    converted this issue into a discussion #367 on Sep 25, 2026
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