[8u60] RFR backport of 8053998: Hot card cache flush chunk size too coarse grained

[Mikael Gerdin]

Hi Thomas,

On 2015-03-25 16:22, Thomas Schatzl wrote:
> Hi all,
>
>    can I have reviews for the backport of "8053998: Hot card cache flush
> chunk size too coarse grained" for 8u60?
>
> It did only apply with minor changes, so I need re-reviews. The problem
> is that some non-ported change (removing ParallelGCThreads == 0)
> requires an additional cast of the ParallelGCThreads variable (which is
> uintx) to be comparable to an integer zero constant.
>
> Note that this change is based on "8060025: Object copy time regressions
> after JDK-8031323 and JDK-8057536" which is also out for review
>
> Full 8u60 changeset:
> http://cr.openjdk.java.net/~tschatzl/8053998-8u60/webrev.8u60/
> Diff changest:
> http://cr.openjdk.java.net/~tschatzl/8053998-8u60/webrev.8u60-fix/

Looks good.

/Mikael

>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8053998
>
> Original change:
> http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/7894458add89
>
> Testing: jprt
>
> Thanks,
>    Thomas
>
>