# Performance of Dict

**URL:** <https://discourse.julialang.org/t/performance-of-dict/30993>\
**Category:** Performance\
**Created:** [November 12, 2019, 7:52am UTC](https://discourse.julialang.org/t/performance-of-dict/30993 "2019-11-12T07:52:16Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [November 12, 2019, 9:17am UTC](https://discourse.julialang.org/t/performance-of-dict/30993/2 "2019-11-12T09:17:32Z")

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You may be better off with a `NamedTuple`, but it is hard to say more without context, especially and MWE we can run and inspect.

> [@Please read: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757):
>
> Welcome to the Julia Discourse! We are enthusiastic about helping Julia programmers, both beginner and experienced. This public service announcement (PSA) outlines best practices when asking for help. Following these points makes it easier for us to help you and more likely you’ll get a prompt, useful answer. Keywords are highlighted to make it easier to refer to specific points. Choose a descriptive title that captures the key part of your question, eg “plots with multiple axes” instead of …

A `Dict` would be especially harmful when it is not concretely typed.

[https://docs.julialang.org/en/v1/manual/performance-tips/#Avoid-containers-with-abstract-type-parameters-1](https://docs.julialang.org/en/v1/manual/performance-tips/#Avoid-containers-with-abstract-type-parameters-1)

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