# Will Julia ever fix its "using ..." latency problems?

**URL:** <https://discourse.julialang.org/t/will-julia-ever-fix-its-using-latency-problems/50659>\
**Category:** Performance\
**Created:** [November 23, 2020, 11:57pm UTC](https://discourse.julialang.org/t/will-julia-ever-fix-its-using-latency-problems/50659 "2020-11-23T23:57:55Z")\
**Posts on this page:** 1\
**Showing post:** 84

<div class="post-metadata">

**Author:** ![Palli](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/palli/32/3380_2.png) [@Palli](https://discourse.julialang.org/u/Palli)\
**Post date:** [November 25, 2020, 11:40pm UTC](https://discourse.julialang.org/t/will-julia-ever-fix-its-using-latency-problems/50659/84 "2020-11-25T23:40:52Z")

</div>

> [@Redefining structs without restart?](https://discourse.julialang.org/t/redefining-structs-without-restart/50826/15):
>
> Julia is a compiled language, not interpreted.

Note:

```julia
$ julia --help-hidden
julia [switches] -- [programfile] [args...]
 --compile={yes|no|all|min}Enable or disable JIT compiler, or request exhaustive compilation

```

I call `julia -O0 -compile=min` the “Python”-option. It’s some minimal compilation (and yes, Python has compilation too; its is minimal, to bytecode). Feel free to try, -compile=no while that’s going to far, you immediately get all kinds of strangeness.

So officially documented is “no” compilation, as an option, implying interpretation.

> [@Volker\_Weissmann](#):
>
> I did not criticize Julia for having disadvantages, but I criticized them for not advertising their disadvantages.

I can see your point, while you put them to a very high standard, higher than I guess any proprietary software and most open source.

Before we put in a disadvantages section, it’s good to know what’s already there to fix startup-slowness, or at least link to the (partial, for now) solution.

---

_[View the full topic](https://discourse.julialang.org/t/will-julia-ever-fix-its-using-latency-problems/50659)._