# Is is just me or

**URL:** <https://discourse.julialang.org/t/is-is-just-me-or/38003>\
**Category:** Performance\
**Created:** [April 22, 2020, 2:41am UTC](https://discourse.julialang.org/t/is-is-just-me-or/38003 "2020-04-22T02:41:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![lewis](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lewis/32/5217_2.png) [@lewis](https://discourse.julialang.org/u/lewis)\
**Post date:** [April 22, 2020, 2:41am UTC](https://discourse.julialang.org/t/is-is-just-me-or/38003/1 "2020-04-22T02:41:36Z")

</div>

…is 1.4 a lot snappier in a lot of ways. I am eyeballing and I time runs of something new I’m working on. Those timings are about 10% or more faster. I’ve improved the code a little, but I’ve also added some tricky features. So, I think the improvement must be more than 10%. The code uses relatively small matrices and does lots of copy out a slice, tiny bit of math, put it the slice back in a different place.

I jumped from 1.3.0 to 1.4.0. Where would I expect to see gains?

Just really happy with how things keep getting better.