LinkedIn Article to be: Why you need to start moving off C/C++ to D, now.

Chris via Digitalmars-d digitalmars-d at puremagic.com
Tue Jul 15 13:03:14 PDT 2014


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


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