d future or plans for d3

[Vladimir Panteleev]

On Sunday, 18 December 2011 at 23:28:16 UTC, Andrei Alexandrescu 
wrote:
> I'm not sure. I seem to recall discussions with pathological 
> cases when large regions of memory were scanned for no good 
> reason.

We need to factor the frequency of such cases, and their impact. 
Also, a more precise GC isn't the only solution to such problems 
- one alternative would be readily-available tools to diagnose 
memory problems. For example, Diamond (the toolkit I've written 
for D1) can display a graphical memory map with scannable areas 
being highlighted. It also allows you to easily find the pointer 
chain that prevents your object from being collected.

> I ordered the GC book :o).

A lot of GC research seems to be tied to VMs. D is a bit of an 
exception...