RFR: Adjust metaspace size during each GC

[Aleksey Shipilev]

On 10/29/2018 03:25 PM, Zhengyu Gu wrote:
> On 10/29/2018 08:44 AM, Aleksey Shipilev wrote:
>> On 10/27/2018 01:54 PM, Zhengyu Gu wrote:
>>> Of course, also for full GC:
>>> Updated: http://cr.openjdk.java.net/~zgu/shenandoah/adj_metaspace/webrev.01/index.html
>>
>> OK. We have to do this during safepoint, right? Otherwise it seems sensible to put this call near
>> Universe::update_heap_info_at_gc() call in shControlThread.
> 
> I believe, G1 and ZGC both do this at safepoint.
> 
> Is okay to push?

Yeah, let's do it.

-Aleksey