RFR: Forward port of 8055006 - Store original value of Min/MaxHeapFreeRatio

Jesper Wilhelmsson jesper.wilhelmsson at oracle.com
Sun Sep 21 10:04:01 UTC 2014

For some reason my mail didn't make it to jdk-build-dev. I'm resending it and 
include build-dev this time, just in case.

Sorry for the noise!

Jesper Wilhelmsson skrev 20/9/14 19:16:
> Hi all,
> I got approvals for the HotSpot changes and they have now been pushed to
> jdk9/hs-gc. For the JDK makefile change I would prefer if someone that feels
> comfortable with the JDK makefiles would have a look at it before I push that part.
> Thanks,
> /Jesper
> Jesper Wilhelmsson skrev 16/9/14 20:32:
>> Hi,
>> The fix for JDK-8055006 was reviewed by several engineers and was pushed
>> directly to 8u40 due to time constraints. This is a forward port to get the same
>> changes into JDK 9.
>> There are two webrevs, one for HotSpot and one for the JDK.
>> The 8u40 HotSpot change applied cleanly to 9 so if this was a traditional
>> backport it wouldn't require another review. But since this is a weird situation
>> and I'm pushing to 9 I'll ask for reviews just to be on the safe side.
>> Also, the original 8u40 push contained some unnecessary changes that was later
>> cleaned up by JDK-8056056. In this port to 9 I have merged these two changes
>> into one to avoid introducing a known issue only to remove it again.
>> The JDK change is new. The makefiles differ between 8u40 and 9 and this new
>> change makes use of functionality not present in 8u40. This patch was provided
>> by Erik Joelsson and I have reviewed it myself, but it needs two reviews so
>> another one is welcome.
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8055006
>> Webrevs: http://cr.openjdk.java.net/~jwilhelm/8055006/jdk9/
>> 8u40 Webrevs: http://cr.openjdk.java.net/~jwilhelm/8055006/
>> 8u40 changes:
>> http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/f933a15469d4
>> http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/312152328471
>> Bug and change for the second 8u40 fix:
>> https://bugs.openjdk.java.net/browse/JDK-8056056
>> http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/9be4ca335650
>> Thanks!
>> /Jesper

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