# Why parallel processing runs slower

**URL:** <https://forum.elixirforum.com/t/why-parallel-processing-runs-slower/62207>\
**Category:** Questions\
**Tags:** task\
**Created:** [March 10, 2024, 11:41am UTC](https://forum.elixirforum.com/t/why-parallel-processing-runs-slower/62207 "2024-03-10T11:41:21Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tj0](https://forum.elixirforum.com/letter_avatar_proxy/v4/letter/t/48db29/32.png) [@tj0](https://forum.elixirforum.com/u/tj0)\
**Post date:** [March 10, 2024, 12:06pm UTC](https://forum.elixirforum.com/t/why-parallel-processing-runs-slower/62207/2 "2024-03-10T12:06:17Z")

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I would expect there is overhead in both spawning and collecting the result of the functions.

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