RFR: 8243486: ZGC: Adjust "Allocated" statistics to take undone page allocations into account

[Stefan Karlsson]

Looks good.

StefanK

On 2020-04-23 16:37, Per Liden wrote:
> The "Allocated" statistics logged under gc+heap today includes page 
> allocations that were later undone. Undoing page allocations is a fairly 
> rare event, but this can still be a bit confusing to see. I propose that 
> we adjust "Allocated" to take undone allocations into account.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8243486
> Webrev: http://cr.openjdk.java.net/~pliden/8243486/webrev.0
> 
> /Per