Am 15.07.2014 22:03, schrieb Chris:
On Monday, 14 July 2014 at 23:43:57 UTC, H. S. Teoh via Digitalmars-d
wrote:
On Mon, Jul 14, 2014 at 11:22:53PM +0000, John Carter via
Digitalmars-d wrote:
[...]
Any other good blog posts / social media comments / pointers I can
digest and use?
This one came to mind:
http://bartoszmilewski.com/2013/09/19/edward-chands/
From the link above:
"It’s a common but false belief that reference counting (using shared
pointers in particular) is better than garbage collection. There is
actual research* showing that the two approaches are just two sides of
the same coin. You should realize that deleting a shared pointer may
lead to an arbitrary long pause in program execution, with similar
performance characteristics as a garbage sweep. It’s not only because
every serious reference counting algorithm must be able to deal with
cycles, but also because every time a reference count goes to zero on a
piece of data a whole graph of pointers reachable from that object has
to be traversed. A data structure built with shared pointers might take
a long time to delete and, except for simple cases, you’ll never know
which shared pointer will go out of scope last and trigger it."
* http://www.cs.virginia.edu/~cs415/reading/bacon-garbage.pdf
+1 :)
