immutable MyType
x::AbstractString
y::Int
end
@time for i in 1:10^5 MyType("a", 1).y end
In julia v0.4
0.000813 seconds (100.00 k allocations: 3.052 MB)
In julia v0.5
0.000003 seconds (5 allocations: 176 bytes)
It seems the memory layout for immutable which contains fields with non-bit
types has changed in v0.5.
I would like to know more in details about such change, Where can I find
the related issues, discussion in GitHub or mailing list?
