DevRoom Proposal: Packed Objects, Object Layout & Value Types - a Survey

[Volker Simonis]

The slides of the talk are available from:

http://progdoc.de/papers/FOSDEM2015/fosdem2015.html

@Mario: could you please eventually link this to the talk description
at https://fosdem.org/2015/schedule/event/packed_objects/

Thanks,
Volker

On Fri, Nov 28, 2014 at 6:11 PM, Volker Simonis
<volker.simonis at gmail.com> wrote:
> Title: Packed Objects, Object Layout & Value Types - a Survey
>
> Abstract:
>
> Java is often criticized for its lack of supporting C-style
> structs. This makes it hard to efficiently implement certain type of
> data structures (like for example arrays of small objects) in Java.
>
> However, recently there have been several different approaches which
> try to address this problem. My talk will briefly introduce "Packed
> Objects" [1], an extension available in IBM's Java SDK 8, "Object
> Layout" [2], a layout-optimized Java data structure package proposed
> by Azul Systems and Value Types [3][4], an OpenJDK proposal for
> immutable, reference-free value objects.
>
> I will describe the commonalities and differences of the three
> approaches and explain how they can improve the memory overhead and
> locality of Java objects.
>
> [1] http://www.oracle.com/technetwork/java/jvmls2013sciam-2013525.pdf
> [2] http://objectlayout.org/
> [3] http://openjdk.java.net/jeps/169
> [4] http://cr.openjdk.java.net/~jrose/values/values-0.html
>
> Bio:
>
> Volker Simonis works for SAP in the SAP JVM Technology group. He
> is an OpenJDK contributor from the very beginning and helped SAP and
> the SAP JVM team engage in the OpenJDK project. He's the project lead
> of the OpenJDK PowerPC/AIX porting project, a JDK8 committer and JDK9
> reviewer.
>
> Recording me on audio and/or video is acceptable
>
> I'd like to get a 45min slot if possible.
>
> Thank you and best regards,
> Volker