# Dispatching by values is very slow - Feature or Problem?

**URL:** https://discourse.julialang.org/t/dispatching-by-values-is-very-slow-feature-or-problem/65586
**Category:** Performance
**Tags:** dispatch
**Created:** [July 31, 2021, 8:33am UTC](https://discourse.julialang.org/t/dispatching-by-values-is-very-slow-feature-or-problem/65586 "2021-07-31T08:33:27Z")
**Posts on this page:** 1
**Showing post:** 18

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### Author: ![lmiq](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lmiq/32/18314_2.png) [@lmiq](https://discourse.julialang.org/u/lmiq)
#### Post date: [July 31, 2021, 12:30pm UTC](https://discourse.julialang.org/t/dispatching-by-values-is-very-slow-feature-or-problem/65586/18 "2021-07-31T12:30:57Z")

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Maybe this thread is of interest: [Union splitting vs C++](https://discourse.julialang.org/t/union-splitting-vs-c/61772)

There many insights into dealing with dynamic dispatch are given.

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_[View the full topic](https://discourse.julialang.org/t/dispatching-by-values-is-very-slow-feature-or-problem/65586)._