RFR: SA Best-effort heap walking implementation

[Zhengyu Gu]

On 3/13/19 11:36 AM, Roman Kennke wrote:
> Very nice!
> 
> The patch looks ok. I wonder if we'd rather push it to upstream right 
> away? It doesn't seem very risky, does it?
Okay, I will file upstream RFE.

Thanks,

-Zhengyu

> 
> Thanks,
> Roman
> 
>> This mirrors ZGC, provides best-effort heap walking implementation.
>>
>> The patch applies cleanly for jdk/jdk and shenandoah/jdk, depending on
>> if we want to bake for a while in shenandoah/jdk repo, or I can file
>> upstream bug.
>>
>> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/sh-sa-heap-walk/webr
>> ev.00/index.html
>>
>> Test:
>>    tier1, 2, 3_gc_shenandoah
>>    hotspot_serviceability
>>    vmTestbase/nsk/jdb
>>    manual test: jhsdb hsdb
>>
>> Thanks,
>>
>> -Zhengyu
>>
>>