# Scaling a sparse matrix row-wise and column-wise too slow

**URL:** <https://discourse.julialang.org/t/scaling-a-sparse-matrix-row-wise-and-column-wise-too-slow/115956>\
**Category:** Performance\
**Tags:** broadcast, sparse\
**Created:** [June 21, 2024, 12:51am UTC](https://discourse.julialang.org/t/scaling-a-sparse-matrix-row-wise-and-column-wise-too-slow/115956 "2024-06-21T00:51:23Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![DNF](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dnf/32/10191_2.png) [@DNF](https://discourse.julialang.org/u/DNF)\
**Post date:** [June 23, 2024, 9:17pm UTC](https://discourse.julialang.org/t/scaling-a-sparse-matrix-row-wise-and-column-wise-too-slow/115956/22 "2024-06-23T21:17:22Z")

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> [@Dan](#):
>
> What is this 1 allocation and can we get rid of it?

Perhaps

```julia
(setup = M = copy($A));

```

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