RFR (S): 8223693: Memory wastage in size of per-region type buffers in GC

[sangheon.kim at oracle.com]

Hi Thomas,

On 5/24/19 5:25 AM, Thomas Schatzl wrote:
> Hi all,
>
>    can I have reviews for this small change in the constants for
> G1HeapRegionAttr::_type field, eliminating some confusion and minor
> memory wastage?
>
> Perf testing showed no measurable impact of the change.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8223693
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8223693/webrev/
Looks good.

Thanks,
Sangheon


> Testing:
> hs-tier1-5 in conjunction with other changes; perf testing showed no
> measurable impact
>
> Thanks,
>    Thomas
>
>