On Tuesday, 26 January 2021 at 17:56:22 UTC, Paul Backus wrote:
It would be much easier for us to help you with this if you
could post the full program, or at the very least a reduced
version that reproduces the same issue. [1] Since your attempts
so far have failed to fix the problem, it is quite likely that
some part of the code you do not suspect is actually to blame.
I cannot post the full source code.
Regarding a reduced version reproducing the issue: well, that's
exactly what the nested foreach loop does. Without it, the
program reaches that point quickly.
With the nested foreach block, it slows to a crawl. More
specifically, commenting-out the indexOf() or countUntil()
sub-blocks preserves fast performance, but I'm not sure if that
may be related to compiler optimizations realizing that there's
nothing but "dead/nonexistent code" inside the loops and
generating a binary that just never goes there.
If this may help: I've composed the second Dlang implementation
as one extended block of code within main() and am thinking of
soon refactoring the code into different functions. I remain
pessimistic of whether this may help.
Is there any possibility this could be GC-related?
