Basically I have a function which I use to read data. If I use this function directly inside of Julia ie. by compiling it as a function directly, using BenchmarkTools it runs in about 350 ms, but if I put it into a package instead and then load this package, it takes 150 ms longer, so 500 ms.
This of course is not a huge difference, but still in theory about 1/3 performance loss. Could someone explain to me why this would happen?