High package load time

[jishnub]

julia> @time using ArrayLayouts
  2.144474 seconds (4.45 M allocations: 381.961 MiB, 17.67% compilation time)

julia> @time_imports using ArrayLayouts
    231.6 ms  FillArrays
   1527.5 ms  ArrayLayouts

Maybe the load time of this package can be improved

[Moelf]

julia> @time_imports using UnROOT
    121.1 ms  FillArrays
      1.9 ms  StaticArraysCore
    454.6 ms  StaticArrays
    920.9 ms  ArrayLayouts
    127.9 ms  MatrixFactorizations
     22.4 ms  MacroTools
     60.2 ms  LazyArrays

yeah impacting by this

[jishnub]

Extraordinarily, this appears to be almost entirely fixed on Julia v1.10. On v1.9

julia> @time using ArrayLayouts
  1.724388 seconds (3.18 M allocations: 301.312 MiB, 5.48% gc time)

On v1.10

julia> @time using ArrayLayouts
  0.190399 seconds (146.59 k allocations: 8.261 MiB)