Is this plotting time normal?

Been using Julia for < 1 day, so pardon any dumb questions…
I installed the Plots package (using Pkg; pkg.Add("Plots")).
(1) Then the first time I did using Plots, I saw "[ Info: Precompiling Plots [91a5bcdd-55d7-5caf-9e0b-520d859cae80]``" for about 15-20 seconds. (2) Further, when I used plot(x, y)` for the first time, it took about 4 seconds to plot and faster thereafter.

Q1: Is (2) just an effect of JIT? Also is ~4 seconds really the time it’ll take the first time or have I installed something incorrectly?
Q2: What’s the reason for (2) and is the time it took normal?
(I use Ubuntu 16.04 w/ 16GB Intel Core™ i7-6700 CPU @ 3.40GHz × :sunglasses:

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(Original message :slack:) (More Info)

Many parts of the Plots package are precompiled the first time you enter using Plots. This work takes a handful of seconds, as you experienced. For similar reasons, when you start a Julia session and make an initial plot there is a few seconds’ delay. Subsequent plots come up quickly.