# Elixir memory model question

**URL:** <https://forum.elixirforum.com/t/elixir-memory-model-question/64345>\
**Category:** Questions\
**Tags:** memory\
**Created:** [June 19, 2024, 12:36pm UTC](https://forum.elixirforum.com/t/elixir-memory-model-question/64345 "2024-06-19T12:36:32Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![LostKobrakai](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/lostkobrakai/32/3072_2.png) [@LostKobrakai](https://forum.elixirforum.com/u/LostKobrakai)\
**Post date:** [June 19, 2024, 2:32pm UTC](https://forum.elixirforum.com/t/elixir-memory-model-question/64345/8 "2024-06-19T14:32:18Z")

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How much of your data is binary data \>64 bytes? Such binaries are put on a shared heap and reference counted instead of having multiple copies around.

For everything else [Memory Usage — Erlang System Documentation v29.0.2](https://www.erlang.org/doc/system/memory.html) and `:erts_debug.size` are your friend.

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