Collection set is empty -> conc mark cancelled (+ RFR)

[Roman Kennke]

Am Donnerstag, den 24.11.2016, 15:06 +0100 schrieb Aleksey Shipilev:
> On 11/24/2016 02:59 PM, Roman Kennke wrote:
> > > OTOH, it is bad to punish the garbage-free application with full
> > > GCs
> > > here. Even heuristics would not save us here: "aggressive" would
> > > trigger
> > > mark, discover no garbage, and do the full GC nevertheless.
> > 
> > If there is no garbage, I'd say carry on, skip evacuation (or let
> > it
> > run with empty, which should be fast).
> 
> Yes, let's just move on then:
>   http://cr.openjdk.java.net/~shade/shenandoah/emptycset-
> concgc/webrev.01/


Yes!

Roman