[yocto] [meta-java] can zero shark be enabled again?

[Federico Pietro Briata]

2015-10-16 17:14 GMT+02:00 Jens Rehsack <rehsack at gmail.com>:

>
> While IcedTea maintains the ARMJIT within hotspot ported from OpenJDK6,
> ZeroShark uses LLVM's JIT.
>
> Since ARM support in LLVM's JIT was utterly broken, MCJIT support is
> required for ZeroShark.
> I was working on that but my ARMv7 and my ARMv5 are still crashing - even
> when I can realize some progress (how quick does it crash ^^).
>
>
Hi
I'm trying to compare performance of openjdk 7 with Oracle ejdk 8

# java -version
java version "1.7.0_85"
OpenJDK Runtime Environment (IcedTea 2.6.1) (85b01-2.6.1)
OpenJDK Zero VM (build 24.85-b03, mixed mode)
# java Linpack
Mflops/s: 13.205  Time: 0.05 secs  Norm Res: 1.43  Precision:
2.220446049250313E-16


# /usr/local/java.oracle/bin/java -version
java version "1.8.0_06"
Java(TM) SE Embedded Runtime Environment (build 1.8.0_06-b23)
Java HotSpot(TM) Embedded Client VM (build 25.6-b23, mixed mode)
# /usr/local/java.oracle/bin/java Linpack
Mflops/s: 22.151  Time: 0.03 secs  Norm Res: 1.43  Precision:
2.220446049250313E-16


As I prefer stay free and avoid commercial solution, anyone can confirm me that
I didn't forgot some optimization in my OpenJDK or something it's still
improved?

thanks and regards
federico
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