[8u20] Backport RFR: JDK-8033426: Scale initial NewSize using NewRatio if not set on command line

[Jon Masamitsu]

Changes look good.

Reviewed.

Jon

On 4/24/14 4:07 AM, Stefan Johansson wrote:
> Hi,
>
> I want to backport JDK-8033426 to solve the regression in jdk-8 where 
> the default young generation size is always the same as the minimum 
> generation size for the generational collectors.
>
> The backport applied clean except for the testing parts in jni.cpp, 
> where another test-call had moved. The backport webrev is available at:
> http://cr.openjdk.java.net/~sjohanss/8033426/backport.00
> The original jdk9 change:
> http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/f7f0c6a77d6d
>
> As a follow up on this backport I also plan to backport JDK-8035057, 
> which fixes a problem with unaligned sizes introduced by this fix. 
> That change applies clean, here is the jdk9 change:
> http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/bac9ef65b71d
>
> Jon and Jesper, you reviewed this the last time. Would you please have 
> a quick look and see if you think everything is ok.
>
> Thanks,
> Stefan