Can D's Garbage Collector be Very Fast?

[Vijay Nayar]

On Wednesday, 8 May 2019 at 10:41:54 UTC, Nicholas Wilson wrote:
> On Wednesday, 8 May 2019 at 10:27:43 UTC, Vijay Nayar wrote:
>
> Thanks to Rainers we now have parallel mark phase of the mark & 
> sweep.

That sounds great! Do any benchmarks exist to give an approximate 
idea of how long D GC events take?  Is it on the order of 
seconds, hundreds of milliseconds, tens of milliseconds, or less?