Mac Apps That Use Garbage Collection Must Move to ARC

[Benjamin Thaut via Digitalmars-d]

Am 24.02.2015 um 10:53 schrieb Walter Bright:
> On 2/24/2015 1:30 AM, Tobias Pankrath wrote:
>> Are the meaningful performance comparisons
>> between the two pointer types that would enable us to estimate
>> how costly emitting those barriers in D would be?
>
> Even 10% makes it a no-go. Even 1%.
>
> D has to be competitive in the most demanding environments. If you've
> got a server farm, 1% speedup means 1% fewer servers, and that can add
> up to millions of dollars.

You seeing this completely one sided. Even if write barries make code 
slower by 10% its a non issue if the GC collections get faster by 10% as 
well. Then in average the program will run at the same speed.