RFR : PPC64 : Need support for VSR spills in ppc.ad

[Gustavo Romero]

On 01/24/2018 10:39 AM, Gustavo Romero wrote:
> Hi Martin,
> 
> I think Michi measured the effectivity of this change using SPECjbb2015 and got
> about 4% of performance improvement in max-jOPS.

Actually for SLP in a whole, but it holds the same.


> Many of our clients still use OpenJDK 8 and I understand that although currently
> there isn't a new schedule ahead of 8u162 [1], 8 will continue to receive
> updates once 8u162 is GA. So I would to backport it to jdk8u/jdk8u so distros
> can grab it on the next security update (roughly). Are you ok with that?
> 
> If you are ok, since this change depends upon other changes that introduced the
> support for VSX, is it fine if I start backporting them firstly instead
> of this one? What do you recommend?
> 
> Thank you.
> 
> 
> Regards,
> Gustavo
> 
> [1] http://openjdk.java.net/projects/jdk8u/
>