Status of non-Hotspot VMs and Shark [Re send list only used wrong email addr.]

[Chris Phillips]

Hi Florian,

Mostly in complete agreement with Xerxes here,

On 24/09/12 10:03 AM, Xerxes Rånby wrote:
> 2012-09-23 11:05, Florian Weimer skrev:
>> What's the status of Shark, JamVM and Cocoa for OpenJDK 6 and 7?  Are
>> they officially released/supported?  What about the zero port?
>>
>> I'm wondering which of these VMs should be part of the upcoming Debian
>> stable release.
>>
> ### Zero
> Zero is actively maintained and all around stable.
> Zero includes an assembler optimized interpreter for ARM and a thumb2 jit for armv7.
> Zero + OpenJDK 6  Icedtea 1.11.4 = OK
> Zero + OpenJDK 7  Icedtea 2.3.2 = OK
At least as far as I know the asm jit for arm is not yet working in 2.3
will be fixed after I get last bits of jsr 292 for zero pasted back 
together.
> tested configure flags:
> --enable-zero
> and
> --with-additional-vms=zero
>
> ### Shark
> Shark (zero+shark) is unmaintained and considered broken.
> Do not package.

Long term goal but dead at the moment.
>
> ### JamVM
> JamVM is actively maintained and all around stable.
> JamVM + OpenJDK 6  Icedtea 1.11.4 = OK, a more stable upstream release exist to be released with 1.12.
> use this patch
> http://icedtea.classpath.org/hg/icedtea6/rev/fb1137cef484
> to use the latest JamVM in combination with IcedTea6 1.11.x before the next IcedTea 6 1.12 hits the streets.
>
> JamVM + OpenJDK 7  Icedtea 2.3.2 = OK
> tested configure flags:
> --enable-jamvm
> and
> --with-additional-vms=jamvm
> * This --with-additional-vms=jamvm combination require a SONAME patch on top of JamVM.
> This jamvm-avoid-version-soname.patch SONAME patch is currently only in use by ubuntu.
> http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/quantal/openjdk-7/quantal/revision/30#debian/patches/jamvm-avoid-version-soname.patch
> Sent and waiting for review upstream.
> http://sourceforge.net/mailarchive/message.php?msg_id=29763831
>
> ### CACAO
> Cacao is actively maintained and stable in combination with OpenJDK 6.
> Cacao + OpenJDK 6  Icedtea 1.11.4 = OK
> --enable-cacao
> and
> --with-additional-vms=cacao
> There is a new upstream cacao 1.6.0 release that should be merged and used by IcedTea6.
> http://www.cacaojvm.org/
>
> Cacao + OpenJDK 7  Icedtea 2.3.2 = unstable
> The CACAO OpenJDK 7 port is immature, it can run HelloWorld and some numerical simple benchmarks
> but refuses to run real world applications that access file IO.
> Do not package.
>
> ### Avian
> Avian is actively maintained and rapidly approaching stable.
> Avian + OpenJDK 7  IcedTea 2.3.2 = OK
> Avian is preferably built separately from src after the main OpenJDK 7 build.
> Avian is packaged in Ubuntu 12.10 and show great performance on embeded devices.
> Latest deb source and merge request:
> https://code.launchpad.net/~xranby/ubuntu/quantal/avian/avian_0.6+20120924/+merge/126005
> http://oss.readytalk.com/avian/
>
> Cheers
> Xerxes
Thanks Xerxes!

Cheers!
Chris
PS
The definition of support I am using  here is
    "mostly working will try to fix bugs on best effort basis".

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