RFR: 8210883: ZGC: Parallel retire/resize/remap of TLABs

[Per Liden]

Thanks Erik!

/Per

On 09/20/2018 12:23 PM, Erik Österlund wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 2018-09-20 12:08, Per Liden wrote:
>> On 09/18/2018 10:24 PM, Per Liden wrote:
>>> Let ZGC retire/resize/remap TLABs in parallel. This change builds on 
>>> JDK-8210857 - "Allow retiring TLABs and collecting statistics in 
>>> parallel​", which is currently also out on review.
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8210883
>>> Webrev: http://cr.openjdk.java.net/~pliden/8210883/webrev.0
>>
>> While off-line reviewing with Erik we noticed that the 
>> ZMarkRootsIteratorClosure obviously has to be owned by the 
>> ZMarkRootsTask for the stat collection to work out as intended.
>> To be symmetric, ZRelocateRootsIteratorClosure/ZRelocateRootsTask were 
>> adjusted in the same way, even if it doesn't really matter in that case.
>>
>> Diff: http://cr.openjdk.java.net/~pliden/8210883/webrev.0vs1
>> Full: http://cr.openjdk.java.net/~pliden/8210883/webrev.0
>>
>> /Per
>