On Monday, 7 September 2015 at 15:34:21 UTC, BBasile wrote:
You can already create, allocate new class, struct and union instances that are not known by the GC. This is not well known because I've explained this several time on several boards to several people. So this proposal is simply consequence of a lack of knowledge.
You have to scan all memory that MAY contain a pointer to a reference chain that contains a pointer to GC heap. That's a lot of cache lines to scan over on today's computers that soon have terrabytes of memory.
