Weird performance case in pluto.jl

### A Pluto.jl notebook ###
# v0.12.17

using Markdown
using InteractiveUtils

# ╔═╡ 232fcca6-412f-11eb-02d9-9d1fca0a05c7
md"""
# Weird Pluto Performance Case

`expression_to_execute_in_module` is a piece of code that, apparently, runs slow if running inside a Pluto cell. For some reason it IS quick if you execute it in the Main module, so there is something strange about the new module.
"""

# ╔═╡ 92c239ec-412e-11eb-1bb2-cbc4d12d358c
expression_to_execute_in_module = quote
		struct in_module_A x end
		struct in_module_B x end

		function in_module_thing()
			local local_time_1 = @elapsed repr([[[[[in_module_A(1)]]]]])
			local local_time_2 = @elapsed repr([[[[[in_module_B(1)]]]]])
			(local_time_1, local_time_2)
		end
		result = @timed in_module_thing()
end;

# ╔═╡ 9371ecc0-412e-11eb-2747-a73e2e0daa8c
md"""
### Execute in Main module (fast)
"""

# ╔═╡ 9385bd40-412e-11eb-2f37-49596b0472cb
let
	Core.eval(Main, expression_to_execute_in_module)
end

# ╔═╡ 939a4242-412e-11eb-1c4c-f5b528374673
md"""
### Execute by though Distributed (faster??)

How is this faster? How?

EDIT: On binder this is just as fast as **Executing in Main module**
"""

# ╔═╡ 93cb6a66-412e-11eb-0bbe-71678e1b345b
md"""
#### Execute in new "sub" module (slow)
"""

# ╔═╡ 93e03ec8-412e-11eb-1fc9-7f9577be50c7
let
	SubModule = Module()
	Core.eval(SubModule, expression_to_execute_in_module)
end

# ╔═╡ 93f48b26-412e-11eb-2c7d-81749be1d376
md"""
### Execute in literal sub module (slow)
"""

# ╔═╡ 9408fd22-412e-11eb-14b0-5584e66e0d60
module X
	import ..expression_to_execute_in_module
	eval(expression_to_execute_in_module)
end

# ╔═╡ 8843df2c-4131-11eb-1659-1d81c42aba8f
 X.result

# ╔═╡ 941d8b52-412e-11eb-0046-0bd694e9055a
md"""
## Helpers
"""

# ╔═╡ 944b0f32-412e-11eb-392e-09d8cd9fae34
import Distributed

# ╔═╡ 94602368-412e-11eb-0b67-b17b6562f9da
function execute_outside_pluto_but_inside_process(expr)
	Distributed.remotecall_eval(Main, 1, quote
		import Distributed
		Distributed.remotecall_eval(
			Main,
			$(Distributed.myid()),
			$(expression_to_execute_in_module)
		)
	end)
end

# ╔═╡ 93b04600-412e-11eb-0f8b-8d7255f6696c
let
	execute_outside_pluto_but_inside_process(expression_to_execute_in_module)
end

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