RFR: ZGC: Concurrent StringTable

[Robbin Ehn]

And after some fast feedback:
Inc: http://cr.openjdk.java.net/~rehn/zgc-concurrent-stringtable/v1/inc/webrev/
Full:http://cr.openjdk.java.net/~rehn/zgc-concurrent-stringtable/v1/full/webrev/

Thanks, Robbin

On 05/28/2018 06:25 PM, Robbin Ehn wrote:
> Forgot to mention this goes on-top of:
> 8195097: Make it possible to process StringTable outside safepoint
> http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2018-May/028209.html
> 
> Not yet in jdk/jdk.
> 
> Thanks, Robbin
> 
> On 05/28/2018 06:23 PM, Robbin Ehn wrote:
>> Hi, please review.
>>
>> This change-set updates ZGC to walk stringtable concurrently by default.
>>
>> Disable with: -XX:-ZConcurrentStringTable
>>
>> Note that we don't support cleaning via ServiceThread.
>>
>> Webrev: http://cr.openjdk.java.net/~rehn/zgc-concurrent-stringtable/v0/webrev/
>>
>> Thanks, Robbin