Request for review (XXS): 7193157: G1: Make some develpflags available in product builds

[Bengt Rutisson]

Thanks for the review, Ramki!

You are right about the G1 tuning white-paper. We should definitely try 
to put something like that together.

I think there will be a talk by the performance team about G1 tuning at 
JavaOne. Maybe that could be the basis for a white-paper?

Bengt

On 2012-08-22 10:21, Srinivas Ramakrishna wrote:
> Looks good to me. I am hoping the perf and gc teams will together also 
> publish a G1 tuning white-paper soon!
>
> -- ramki
>
> On Wed, Aug 22, 2012 at 12:46 AM, Bengt Rutisson 
> <bengt.rutisson at oracle.com <mailto:bengt.rutisson at oracle.com>> wrote:
>
>
>     Hi all,
>
>     Could I please have a couple of reviews for this really small fix?
>     http://cr.openjdk.java.net/~brutisso/7193157/webrev.00/
>     <http://cr.openjdk.java.net/%7Ebrutisso/7193157/webrev.00/>
>
>     We need to make some of the G1 develop flags available in product
>     builds to allow the performance team to tune G1 properly. We
>     decided to make the flags experimental to start with. After the
>     performance team has evaluated the flags we might make some of
>     them product flags. The current prime candidates for becoming
>     product flags are:
>
>     G1DefaultMinNewGenPercent
>     G1DefaultMaxNewGenPercent
>     G1OldCSetRegionLiveThresholdPercent
>
>     Thanks,
>     Bengt
>
>

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