[Issue 3463] Integrate Precise Heap Scanning Into the GC

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3463



--- Comment #47 from Leandro Lucarella <llucax at gmail.com> 2010-07-25 13:43:10 PDT ---
(In reply to comment #46)
> As far as the (small) drop in mean performance, I say "who cares?".  In
> practice, once false pointers start eating you alive and the heap gets
> unnecessarily huge, everything memory management-related becomes appallingly
> slow.  This fact is probably not shown in the synthetic benchmarks.

Yup, as I said in another comment:

  Running dil to generate the full Tango documentation can take from 50 to 80
  seconds depending on the address range returned by the OS (I suspect because
  of false pointers; which I hope to prove trying this patch :)

I'll try to do some testing with dil, but I don't think it will be in the near
future.

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