How to run a HTTP.jl server in parallel, while doing computations in the foreground?

[algunion]

I created a related topic here - as this doesn’t seem related to HTTP.jl package:

Bug in sleep() function - main thread work affecting sleep duration on running tasks

What triggered the present experiment was my failure to find a reasonable solution for the issue raised by this topic. It turned out that the issue was unrelated to the HTTP.jl package and went deeper. Now, the experiment (with nthreads() > 2). Important note: to avoid “what if” scenarios about the resource allocation to the running tasks when using 1-2 threads, I suggest running this with -t 3 or above. Also, for this MWE it doesn’t make any difference if the tasks are spawned on :interactiv…