julia

bea9c9cc - cache the `find_all_in_cache_path` call during parallel precompilation (#56369)

cache the `find_all_in_cache_path` call during parallel precompilation (#56369) Before (in an environment with DifferentialEquations.jl): ```julia julia> @time Pkg.precompile() 0.733576 seconds (3.44 M allocations: 283.676 MiB, 6.24% gc time) julia> isfile_calls[1:10] 10-element Vector{Pair{String, Int64}}: "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/Printf/3FQLY_zHycD.ji" => 178 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/Printf/3FQLY_xxrt3.ji" => 178 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/Dates/p8See_xxrt3.ji" => 158 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/Dates/p8See_zHycD.ji" => 158 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/TOML/mjrwE_zHycD.ji" => 155 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/TOML/mjrwE_xxrt3.ji" => 155 "/home/kc/.julia/compiled/v1.12/Preferences/pWSk8_4Qv86.ji" => 152 "/home/kc/.julia/compiled/v1.12/Preferences/pWSk8_juhqb.ji" => 152 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/StyledStrings/UcVoM_zHycD.ji" => 144 "/home/kc/.julia/juliaup/julia-nightly/share/julia/compiled/v1.12/StyledStrings/UcVoM_xxrt3.ji" => 144 ``` After: ```julia julia> @time Pkg.precompile() 0.460077 seconds (877.59 k allocations: 108.075 MiB, 4.77% gc time) julia> isfile_calls[1:10] 10-element Vector{Pair{String, Int64}}: "/tmp/jl_a5xFWK/Project.toml" => 15 "/tmp/jl_a5xFWK/Manifest.toml" => 7 "/home/kc/.julia/registries/General.toml" => 6 "/home/kc/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/Markdown/src/Markdown.jl" => 3 "/home/kc/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/Serialization/src/Serialization.jl" => 3 "/home/kc/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/Distributed/src/Distributed.jl" => 3 "/home/kc/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/UUIDs/src/UUIDs.jl" => 3 "/home/kc/.julia/juliaup/julia-nightly/share/julia/stdlib/v1.12/LibCURL/src/LibCURL.jl" => 3 ``` Performance is improved and we are not calling `isfile` on a bunch of the same ji files hundreds times. Benchmark is made on a linux machine so performance diff should be a lot better on Windows where these `isfile_casesensitive` call is much more expensive. Fixes https://github.com/JuliaLang/julia/issues/56366 --------- Co-authored-by: KristofferC <kristoffer.carlsson@juliacomputing.com> Co-authored-by: Ian Butterworth <i.r.butterworth@gmail.com> (cherry picked from commit 9850a3881221a57a382e98c9b9ae2bf97ac3966d)