On Tuesday, 24 January 2017 at 15:48:19 UTC, Nordlöw wrote:
On Tuesday, 24 January 2017 at 15:33:37 UTC, Stefan Koch wrote:
The lookup time is one issue but not the most important,
The instanciation of a template is a non-trivial operation
within the compiler.
Type-deduction ast rewriting expression expansion
all of that takes time and a huge chunk at that.
Interesting. Is that the major cause of high memory usage in
DMD?
Also binary code needs to be generated and that code is
generated for every instance regardless of how similar they
are.
Thanks.
I would have to investigate the specific case.
It's also because the recursive nature of templates that you end
up with +100_000 instances
It those numbers even small allocations have a huge impact.
