# Do Garbage Collectors necessarily make code slow?

**URL:** <https://discourse.julialang.org/t/do-garbage-collectors-necessarily-make-code-slow/97902>\
**Category:** Offtopic\
**Tags:** garbage-collection\
**Created:** [April 24, 2023, 10:55am UTC](https://discourse.julialang.org/t/do-garbage-collectors-necessarily-make-code-slow/97902 "2023-04-24T10:55:56Z")\
**Posts on this page:** 1\
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**Author:** ![FrancisKing](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/francisking/32/24966_2.png) [@FrancisKing](https://discourse.julialang.org/u/FrancisKing)\
**Post date:** [April 24, 2023, 10:55am UTC](https://discourse.julialang.org/t/do-garbage-collectors-necessarily-make-code-slow/97902/1 "2023-04-24T10:55:56Z")

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A more serious question, while you’re around, is to ask you why C# is generally reckoned to be slower than C++, “because it has garbage collection”. In another thread you opined that garbage collectors don’t necessarily make code slow.

Thoughts, please.

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