3 ms·

It actually makes reasoning easy. What gets copied: everything. What gets shared: nothing.

• im_down_w_otp 9y ago
  Except that isn't true in Erlang (or other BEAM languages). Binaries larger than some threshold are managed on a shared-heap. I think a couple other things have been promoted to being managed that way too fairly recently.
  • ramchip 9y ago
    You might be thinking of the optimization for constant pool references: https://medium.com/@jlouis666/an-erlang-otp-20-0-optimization-efde8b20cba7 https://medium.com/@jlouis666/an-erlang-otp-20-0-optimizatio...
    • im_down_w_otp 9y ago
      Yes, that. Thank you.
• banachtarski 9y ago
  That's not true in a number of cases, and thankfully what you said isn't right or the BEAM would truly be a disaster.