# Slow package load after initially starting Julia on Windows

**URL:** <https://discourse.julialang.org/t/slow-package-load-after-initially-starting-julia-on-windows/114369>\
**Category:** General Usage\
**Created:** [May 16, 2024, 5:07pm UTC](https://discourse.julialang.org/t/slow-package-load-after-initially-starting-julia-on-windows/114369 "2024-05-16T17:07:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TomRottier](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tomrottier/32/31040_2.png) [@TomRottier](https://discourse.julialang.org/u/TomRottier)\
**Post date:** [May 16, 2024, 5:07pm UTC](https://discourse.julialang.org/t/slow-package-load-after-initially-starting-julia-on-windows/114369/1 "2024-05-16T17:07:44Z")

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When I open a fresh terminal session on Windows:

```julia
julia> @time using GLMakie
 56.724200 seconds (4.40 M allocations: 459.433 MiB, 0.63% gc time, 0.09% compilation time: 57% of which was recompilation)

```

If I then close the session and restart Julia:

```julia
julia> @time using GLMakie
  4.776639 seconds (4.40 M allocations: 459.435 MiB, 4.38% gc time, 1.13% compilation time: 62% of which was recompilation)

```

I then get similar timings for any subsequent runs.

Repeating this on WSL, first time:

```julia
@time using GLMakie
  3.147079 seconds (2.97 M allocations: 189.322 MiB, 5.05% gc time, 1.10% compilation time: 67% of which was recompilation)

```

and subsequent runs:

```julia
@time using GLMakie
  2.480276 seconds (2.97 M allocations: 189.323 MiB, 6.89% gc time, 1.44% compilation time: 69% of which was recompilation)

```

Windows and WSL both on Julia 1.10 installed via Juliaup.

Any ideas what could be the much slower first time on Windows?

---

<div class="post-metadata">

**Author:** ![mkitti](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mkitti/32/12459_2.png) [@mkitti](https://discourse.julialang.org/u/mkitti)\
**Post date:** [May 16, 2024, 5:19pm UTC](https://discourse.julialang.org/t/slow-package-load-after-initially-starting-julia-on-windows/114369/2 "2024-05-16T17:19:39Z")

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Could you tell us about your hard drive setup?

---

<div class="post-metadata">

**Author:** ![TomRottier](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tomrottier/32/31040_2.png) [@TomRottier](https://discourse.julialang.org/u/TomRottier)\
**Post date:** [May 16, 2024, 6:05pm UTC](https://discourse.julialang.org/t/slow-package-load-after-initially-starting-julia-on-windows/114369/3 "2024-05-16T18:05:07Z")

</div>

It’s a Dell XPS 9510 with a NVMe PC SN810 NVMe WDC 1024GB SSD (1TB storage)