On Tuesday, 22 December 2015 at 17:43:00 UTC, H. S. Teoh wrote:
I wonder if the slowdown is caused by GC collection cycles (because calling to!string will allocate, and here you're making a very large number of small allocations, which is known to cause GC performance issues).Try inserting this before the loop: import core.memory; GC.disable(); Does this make a difference in the running time? T
Thanks! Unfortunately that actually makes it run slightly slower :-)