Conservative package compiler testing

conservative_package_compiler_results.md

Conservative Package Compiler Results

1. Using a ton of standard pervasive packages only helps 10%
2. Getting DiffEqBase helps 50%
3. Getting OrdinaryDiffEq without extra precompiles gets to 1.3 seconds, vs 0.6 seconds on the second run. That's pretty good!

conservative_package_compiler_testing.jl

using PackageCompiler

conservative = [
    :MacroTools
    :MuladdMacro
    :TimerOutputs
    :ForwardDiff
    :Plots
    :Lazy
    :StaticArrays
    :BenchmarkTools
    :Latexify
    :Debugger
    :Unitful
    :IterativeSolvers
    :Parameters
    :Reexport
    :NLsolve
    :SpecialFunctions
    :FiniteDiff
    :SimpleTraits
    :RecipesBase
    :LabelledArrays
    :AbstractFFTs
    :UnPack
]


diffeqbase = [
    :DiffEqBase
]

ordinarydiffeq = [
    :OrdinaryDiffEq
]

PackageCompiler.create_sysimage(vcat(conservative,diffeqbase);
    replace_default=true)

@time begin
    using OrdinaryDiffEq
    f(u,p,t) = 1.01*u
    u0=1/2
    tspan = (0.0,1.0)
    prob = ODEProblem(f,u0,tspan)
    sol = solve(prob,Tsit5(),reltol=1e-8,abstol=1e-8)
end

# Before
10.289882 seconds (23.34 M allocations: 1.292 GiB, 4.54% gc time)

# After Conservative
9.634908 seconds (18.76 M allocations: 1.034 GiB, 4.11% gc time)

# After DiffEqBase
5.029686 seconds (8.19 M allocations: 439.332 MiB, 5.37% gc time)

# After OrdinaryDiffEq
1.310768 seconds (3.26 M allocations: 174.868 MiB, 10.44% gc time)