RFR: Periodic GC

[Roman Kennke]

Am 04.08.2017 um 12:07 schrieb Aleksey Shipilev:
> Following up on yesterday's experiment, here is the Periodic GC implementation:
>   http://cr.openjdk.java.net/~shade/shenandoah/periodic-gc/webrev.01/
>
> Only "adaptive" and "dynamic" are enabling it. "aggressive" performs lots of GCs anyway, and
> "passive" should not do periodic at all. The default period is 5 minutes, which seems to be a safe
> default for detecting really idle applications.
>
> Testing: new test
>
> Thanks,
> -Aleksey
>
Do we need a way to turn it off?

Looks to me like the code is duplicated in dynamic and adaptive. Dunno
if it can somehow be shared?


Otherwise, looks good.

Roman