D Concurrent GC

[Sean Kelly]

Andrei Alexandrescu Wrote:
> 
> There's a discussion on digitalmars.D about a D program being slower 
> than the equivalent Python script because of the GC. Would be a good 
> test bed!

I was playing with that yesterday, but there was too much setup required for a quick test (it compared an MD5 has of a directory tree to the current directory tree).  I'll revisit it though, since it seems a good starting point.