A lot of method invalidations coming from InlineStrings #22
Description
I'm doing some work improving compile times for a number of packages and noticed that InlineStrings keep popping up as a large source of invalidations. I'm not sure how large of a problem this is in practice, but I figured I'll mention it in case you have an easy fix for it
julia> show(trees[end-1])
inserting String(x::T) where T<:InlineStrings.InlineString in InlineStrings at /home/fredrikb/.julia/packages/InlineStrings/aWvyB/src/InlineStrings.jl:114 invalidated:
backedges: 1: superseding String(s::AbstractString) in Base at strings/string.jl:82 with MethodInstance for String(::AbstractString) (512 children)
25 mt_cache
false
julia> show(trees[end-2])
inserting string(a::Union{Char, SubString{String}, String}, b::Union{Char, SubString{String}, String}, c::InlineStrings.InlineString) in InlineStrings at /home/fredrikb/.julia/packages/InlineStrings/aWvyB/src/InlineStrings.jl:400 invalidated:
backedges: 1: superseding string(xs...) in Base at strings/io.jl:185 with MethodInstance for string(::Char, ::Vararg{Any}) (1 children)
2: superseding string(xs...) in Base at strings/io.jl:185 with MethodInstance for string(::Any, ::Char, ::Any) (9 children)
3: superseding string(xs...) in Base at strings/io.jl:185 with MethodInstance for string(::Any, ::String, ::Any) (12 children)
4: superseding string(xs...) in Base at strings/io.jl:185 with MethodInstance for string(::String, ::String, ::Any) (50 children)
5: superseding string(xs...) in Base at strings/io.jl:185 with MethodInstance for string(::String, ::Vararg{Any}) (360 children)
3 mt_cache
falseThe code I ran to get the data was
using SnoopCompile
invalidations = @snoopr begin
using ControlSystems
end;
trees = SnoopCompile.invalidation_trees(invalidations);