# 1.8 much slower than 1.6

**URL:** <https://discourse.julialang.org/t/1-8-much-slower-than-1-6/89254>\
**Category:** General Usage\
**Created:** [October 25, 2022, 3:33pm UTC](https://discourse.julialang.org/t/1-8-much-slower-than-1-6/89254 "2022-10-25T15:33:14Z")\
**Posts on this page:** 1\
**Showing post:** 21

<div class="post-metadata">

**Author:** ![jonjilla](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@jonjilla](https://discourse.julialang.org/u/jonjilla)\
**Post date:** [November 2, 2022, 3:26pm UTC](https://discourse.julialang.org/t/1-8-much-slower-than-1-6/89254/21 "2022-11-02T15:26:38Z")

</div>

Are you perhaps using GLM? I have a discussion where I found excessive usage in julia recently (I don’t know when it started, but it wasn’t there when I originally developed the script) and it looked like GLM was using too many threads for regression. I guess it uses LinearAlgebra under the covers. I fixed it by reducing the BLAS thread count.

You can see the discussion here: [Huge CPU load when using GLM](https://discourse.julialang.org/t/huge-cpu-load-when-using-glm/89209)

---

_[View the full topic](https://discourse.julialang.org/t/1-8-much-slower-than-1-6/89254)._