# Julia 1.11.8 performance up a notch since 1.11.7 (was: down a notch)

**URL:** <https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577>\
**Category:** General Usage\
**Tags:** performance\
**Created:** [December 16, 2025, 7:02am UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577 "2025-12-16T07:02:29Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![JJMerelo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jjmerelo/32/217998_2.png) [@JJMerelo](https://discourse.julialang.org/u/JJMerelo)\
**Post date:** [December 16, 2025, 7:02am UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577/1 "2025-12-16T07:02:29Z")

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As you may know, I’m using Julia for performance/energy evaluation here [GitHub - cecimerelo/BraveNewAlgorithm.jl](https://github.com/CeciMerelo/BraveNewAlgorithm.jl) I routinely test new versions for improvements…

After initially measuring a downgraded performance, I took other tests and there seems to be a slight, but significant improvement.

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**Author:** ![JJMerelo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jjmerelo/32/217998_2.png) [@JJMerelo](https://discourse.julialang.org/u/JJMerelo)\
**Post date:** [December 16, 2025, 7:32am UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577/2 "2025-12-16T07:32:47Z")

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I have checked [the diff](https://github.com/JuliaLang/julia/compare/v1.11.7...v1.11.8) and, although I’m no expert, there are some changes in memory usage, marking it as volatile, as well as some change in types in strings (from `Integer` to `Int`), changes in upstream versions of tools… I can’t pinpoint any specific thing that would have made it…

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**Author:** ![nilshg](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nilshg/32/2283_2.png) [@nilshg](https://discourse.julialang.org/u/nilshg)\
**Post date:** [December 16, 2025, 9:07am UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577/3 "2025-12-16T09:07:24Z")

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I think at a minimum it would be useful to understand what you are actually measuring here when you say “time and energy consumption”. If there are actual runtime regressions the next step would then be to try and isolate where in your benchmarking suite they occur.

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**Author:** ![JJMerelo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jjmerelo/32/217998_2.png) [@JJMerelo](https://discourse.julialang.org/u/JJMerelo)\
**Post date:** [December 16, 2025, 10:09am UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577/4 "2025-12-16T10:09:36Z")

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After measuring again, there seems to be a slight, but significant improvement in, at least, energy consumption. Measuring performance is a complicated affair always… I’m editing the title to reflec that.

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**Author:** ![KSepetanc](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ksepetanc/32/10841_2.png) [@KSepetanc](https://discourse.julialang.org/u/KSepetanc)\
**Post date:** [December 16, 2025, 11:59pm UTC](https://discourse.julialang.org/t/julia-1-11-8-performance-up-a-notch-since-1-11-7-was-down-a-notch/134577/5 "2025-12-16T23:59:56Z")

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Do you have some numbers to show?