Relatively high package load time

[jishnub]

Currently loading FastTransforms for the first time in a new session takes around 9s on my laptop.

julia> @time using FastTransforms
  8.874037 seconds (12.01 M allocations: 893.960 MiB, 3.89% gc time, 33.26% compilation time)

I wonder if this may be mitigated somewhat?

[MikaelSlevinsky]

I think it can be reduced.

The core of the package is written in C, and since commenting out include("libfasttransforms.jl") decreases precompile time for me (on an old MacBook Pro running Julia v1.5) by less than 14% and decreases subsequent load time by less than 13%, this would suggest that most of the compile and load times are for peripheral functionality (and loading dependencies). Note that compile time was never the purpose behind the C rewrite of the original Julia version, just a happy side-effect. It was for runtime performance. It's not clear to me how many peripheral routines need a C rewrite.

[MikaelSlevinsky]

On 0.14.5, I'm seeing

julia> @time using FastTransforms
  1.401138 seconds (4.16 M allocations: 303.644 MiB, 2.20% gc time, 3.83% compilation time)

which can always be improved but is more reasonable now.