# Performance degradation of \`fill\` in latest Julia 0.7 Dev?

**URL:** <https://discourse.julialang.org/t/performance-degradation-of-fill-in-latest-julia-0-7-dev/9648>\
**Category:** Performance\
**Created:** [March 11, 2018, 8:20pm UTC](https://discourse.julialang.org/t/performance-degradation-of-fill-in-latest-julia-0-7-dev/9648 "2018-03-11T20:20:20Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Seif\_Shebl](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Seif\_Shebl](https://discourse.julialang.org/u/Seif_Shebl)\
**Post date:** [March 11, 2018, 9:16pm UTC](https://discourse.julialang.org/t/performance-degradation-of-fill-in-latest-julia-0-7-dev/9648/3 "2018-03-11T21:16:25Z")

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I think it may be related to splatting the dimensions, if I replace `dims...` with explicit `m, n` in [the original definition](https://github.com/JuliaLang/julia/blob/f738de4e9fd747969c320afe90471e80d9f69704/base/array.jl#L349), I can restore the performance again.

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