# Mug.jl performance drop-off

**URL:** <https://discourse.julialang.org/t/mug-jl-performance-drop-off/129841>\
**Category:** Offtopic\
**Created:** [June 12, 2025, 3:45pm UTC](https://discourse.julialang.org/t/mug-jl-performance-drop-off/129841 "2025-06-12T15:45:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Roger\_Powell](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/roger_powell/32/21586_2.png) [@Roger\_Powell](https://discourse.julialang.org/u/Roger_Powell)\
**Post date:** [June 12, 2025, 3:45pm UTC](https://discourse.julialang.org/t/mug-jl-performance-drop-off/129841/1 "2025-06-12T15:45:23Z")

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I love Julia but I am struggling with the `Mug.jl` interface. When I first downloaded it, the code coverage (aka white glaze) was pretty complete, but now I notice that it’s dropped back to about 70% and soon “Julia” will be wiped out. It still works as a fixed-size, mutable, container but there are a few chips in the `mug.base` (aka benchmarks). Anyone else facing these issues?

 ![mug_jl](https://global.discourse-cdn.com/julialang/original/3X/c/4/c42c1ca16fa1c3bddea5aa5893564437e95e2b62.jpeg)

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**Author:** ![cormullion](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/cormullion/32/49131_2.png) [@cormullion](https://discourse.julialang.org/u/cormullion)\
**Post date:** [June 12, 2025, 4:08pm UTC](https://discourse.julialang.org/t/mug-jl-performance-drop-off/129841/2 "2025-06-12T16:08:38Z")

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I noticed you’re running an old version of the logo (with the two-tone coloured circles).

> **[GitHub - JuliaLang/julia-logo-graphics: official versions of the Julia logo](https://github.com/JuliaLang/julia-logo-graphics?tab=readme-ov-file#historical-notes)**
>
> official versions of the Julia logo

Probably due for an upgrade - if you can locate a source…

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**Author:** ![togo59](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/togo59/32/4138_2.png) [@togo59](https://discourse.julialang.org/u/togo59)\
**Post date:** [June 12, 2025, 8:58pm UTC](https://discourse.julialang.org/t/mug-jl-performance-drop-off/129841/3 "2025-06-12T20:58:30Z")

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Perfect! It’s open sauce so I should be able find it,