In my eyes there is just one reason there is no better GC yet: It
requires compiler support.
And thats a huge problem. The number of people who would actually be
ablte to make the modifications on the compiler in this community is
very small and they tend to not have much time doing it. A really good
concurrent GC which properly deals with short lived allocations would
need the following compiler support.
1) Callback on pointer write (if the pointer is on the heap)
2) Support for percisley scanning the stack
3) Callback on assignment of __shared or static shared variables
4) Callback on cast to shared
5) Callback on new of a shared object
The only thing the compiler already does support is the RTInfo template
which can be used to percisely scan the heap, but thats not enough for a
really good GC.
Kind Regards
Benjamin Thaut
