[8u] RFR for backport of 8156028: G1YoungGenSizer _adaptive_size not correct when setting NewSize and MaxNewSize to the same value

[Hohensee, Paul]

This looks fine, except that it would be good to add a newline after the declaration of _adaptive_size to match the original patch.

Thanks,
Paul

On 11/26/19, 12:20 AM, "jdk8u-dev on behalf of Liang Mao" <jdk8u-dev-bounces at openjdk.java.net on behalf of maoliang.ml at alibaba-inc.com> wrote:

    Hi,
    Original bug:
     https://bugs.openjdk.java.net/browse/JDK-8156028
     http://hg.openjdk.java.net/jdk/jdk/rev/ba8be1a71dec
    
    Original patch does not apply cleanly to 8u, because class G1YoungGenSizer has been
    moved to seperated file.
    
    Since G1 is already a stable feature in JDK8U, the obvious bug that the young gen size
    cannot be adaptive with different NewSize and MaxNewSize makes users confused. The
    alternative way to use experimental option *G1NewSizePercent* is not intuitive and formal.
    
    8u webrev:
     http://cr.openjdk.java.net/~ddong/8156028/webrev.00/
    Testing: x86_64 build, affected tests, tier1
    Thanks,
    Liang