FW: Backport performance enhancement to jdk8

Bruno Alexandre Rosa bruno.rosa at eldorado.org.br
Wed Apr 19 16:42:30 UTC 2017

Forwarding the discussion here.

Bruno Rosa

> From: Bruno Alexandre Rosa 
> Sent: quarta-feira, 12 de abril de 2017 16:23
> To: 'ppc-aix-port-dev at openjdk.java.net' <ppc-aix-port-dev at openjdk.java.net>
> Subject: Backport performance enhancement to jdk8

> Hi, everyone,
> Recently our team implemented the missing mulAdd and squareToLen intrinsics on ppc64. Our initial approach does not use vector instructions, but we are also looking into that.
> Running SPECjvm2008's crypto.rsa benchmark on jdk9 we got around 4% performance gain. Backporting it to jdk8 we noticed a more remarkable ~56% gain.
> We think that this gain justifies a backport. However, we are also aware that patches are backported mainly when they address bugfixes. Would this be acceptable for the community?
> Regards,
> Bruno Rosa

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