On Mon, 21 Apr 2014 17:52:30 -0400, Ola Fosheim Grøstad
<[email protected]> wrote:
Here are two very good reasons to avoid extensive ref-counting:
1. transactional memory ( you don't want a lock on two reads )
2. cache coherency ( you don't want barriers everywhere )
Betting everything on ref counting is the same as saying no to upcoming
CPUs.
IMO that means ARC is DOA. It might be useful for some high level
objects… but I don't understand why one would think that it is a good
low level solution. It is a single-threaded solution.
Single threaded ARC can go a long way in D. We statically know whether
data is shared or not.
-Steve
