Closed
Description
If I make a package M with this content of src/M.jl:
module M
f(x) = x > 0 ? cbrt(x) : 0.0
precompile(f, (Float64,))
end
and run
using M, BenchmarkTools
x1 = fill(0.0, 1000000);
x2 = fill(1.0, 1000000);
@btime M.f.($x1);
@btime M.f.($x2);
the result is
842.301 μs (2 allocations: 7.63 MiB)
20.586 ms (2000002 allocations: 38.15 MiB)
Without precompile(f, (Float64,)) the excessive allocations go away.
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