G1gc compaction algorithm

Thomas Schatzl thomas.schatzl at oracle.com
Wed Jul 16 07:07:39 UTC 2014


Hi,

On Wed, 2014-07-16 at 10:02 +0300, Martin Makundi wrote:
> > > +PrintHeapAtGC -XX:+PrintHeapAtGCExtended .
>
> Does it print only on Full GC or any GC? Any gc might be an overkill.

Unfortunately any GC :/

> 
> >  You want that probably:
> > https://bugs.openjdk.java.net/browse/JDK-8038487
>
> I cannot comment (didn't find a way to register as user) on that entry
> but you could add a comment on my behalf that   "continuous parallel
> compaction"  would be nice.

I can add a comment, but what do you mean with "continuous parallel
compaction" if I may ask, and what exact purpose does it serve?

The terms are too generic to me to discern any particular functionality.

Thanks,
  Thomas




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