Requesting explanation for better performance at ...

[Sid-Bhatia-0]

Here, it is mentioned that

reshape(x, (size(x) |> reverse |> Base.tail |> Base.tail |> reverse)..., :)

is much faster than

reshape(x, size(x)[1:end-2]..., :)

A brief explanation as to why that is so would be really appreciated! Thanks.

[findmyway]

Well, I learned this code snippet from Flux.jl, but I forgot the source code link...

I'll test it again later on the latest version of Julia to verify whether it still stands up or not.

[findmyway]

Confirmed. This is not necessary anymore at least with Julia@v1.5