# DifferentialEquations Pkg first use
**URL:** https://discourse.julialang.org/t/differentialequations-pkg-first-use/40286
**Category:** General Usage
**Tags:** question, package, diffeq
**Created:** [May 27, 2020, 7:52pm UTC](https://discourse.julialang.org/t/differentialequations-pkg-first-use/40286 "2020-05-27T19:52:38Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@A.U.M](https://discourse.julialang.org/u/A.U.M)
#### Post date: [May 27, 2020, 7:52pm UTC](https://discourse.julialang.org/t/differentialequations-pkg-first-use/40286/1 "2020-05-27T19:52:38Z")
Hello,
It’s my first time to use DifferentialEquations Pkg. I used this documentation ( [https://docs.sciml.ai/stable/tutorials/ode\_example/](https://docs.sciml.ai/stable/tutorials/ode_example/)) to do some tutorial and when I run the same code in the documentation using Jupyter notebook I got this notification and it seems that the code calculating something very heavy and till now I didn’t get anything. I am using a laptop ( core i7 with 16 GB ram )
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### Author:  [@tbeason](https://discourse.julialang.org/u/tbeason)
#### Post date: [May 27, 2020, 9:13pm UTC](https://discourse.julialang.org/t/differentialequations-pkg-first-use/40286/2 "2020-05-27T21:13:59Z")
Yea the very first precompilation is long. I just experienced it again for the first time in a while and I was shocked at how long it is. I know they are doing lots of work to improve it though. It may takes minutes, but then it should work fine. Did it finish eventually?
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [May 27, 2020, 9:46pm UTC](https://discourse.julialang.org/t/differentialequations-pkg-first-use/40286/3 "2020-05-27T21:46:09Z")
Yes, the very first compile takes a minute or 2 IIRC. It should get a pretty big improvement by v1.6 though.